Penny needs 12 ounces of a snack mix that is made up of chocolate and almonds. Chocolate cost $3. 50 per ounce and almonds cost $4. 50 per ounce. Penny has $50 to spend and plans to sell it all. X the amount of chocolate and Y is the amount of almonds. Determine which equations you are used to form a system of equations for the scenario

Answers

Answer 1

The two equations which can be used to form a system of equations for the scenario are X + Y = 12 and 3.50X + 4.50Y = 50

To solve this problem, we need to form a system of equations. Let X be the amount of chocolate and Y be the amount of almonds. The first equation we can form is based on the total amount of snack mix that Penny needs, which is 12 ounces:

X + Y = 12

The second equation we can form is based on the cost of the ingredients. We know that chocolate costs $3.50 per ounce and almonds cost $4.50 per ounce. If X is the amount of chocolate and Y is the amount of almonds, then the total cost of the snack mix will be:

3.50X + 4.50Y = 50

This equation represents the fact that Penny has $50 to spend on the snack mix. Now we have a system of two equations that we can use to solve for X and Y. We can use substitution or elimination to solve the system and find the values of X and Y that satisfy both equations.

Once we have those values, we can check that they add up to 12 and that the total cost is $50. This system of equations allows us to calculate the amount of chocolate and almonds Penny needs to make the snack mix within her budget.

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Related Questions

Abd and dbc are linear pairs, and abd and evc are vertical angles. if mabd = 5(2x + 1), mdbc= 3x + 6, and mebc = y+135/2, select all statements that are true

Answers

The following statements are true:

mabd + mdbc = 180 degrees

mabd = mevc

What are the true statements given that abd and dbc are linear pairs, abd and evc are vertical angles, and the measures are given?

According to the definition of linear pairs, the two angles add up to 180 degrees. Therefore, mabd + mdbc = 180 degrees.

According to the definition of vertical angles, they have the same measure. Therefore, mabd = mevc.

Since abd and evc are vertical angles, and mabd = mevc, then mabd = mebc. Therefore, we can substitute mabd in the equation mebc = y+135/2 to get 5(2x + 1) = y+135/2.

We can solve for y to get y = 10x + 260.

Now we can substitute this value of y into the equation mebc = y+135/2 to get mebc = 10x + 347.5.

Therefore, none of the statements in the question that mention mebc are necessarily true or false, since we don't have enough information about the value of x to determine its measure.

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Find the total surface area of the following


cone. Leave your answer in terms of a.


4 cm


3 cm


SA = [ ? ]7 cm


Hint: Surface Area of a Cone = tre + B


Where e = slant height, and B = area of the base

Answers

The total surface area of the cone is 44π cm², where π represents the mathematical constant pi.

We have,

To find the total surface area of a cone, we need to calculate the lateral surface area (denoted by L) and the base area (denoted by B), and then sum them.

The lateral surface area of a cone is given by L = πrℓ, where r is the radius of the base and ℓ is the slant height.

The base area is given by B = πr², where r is the radius of the base.

Given the dimensions:

Radius of the base (r) = 4 cm

Slant height (ℓ) = 7 cm

We can calculate the lateral surface area as L = π(4)(7) = 28π cm².

The base area can be calculated as B = π(4^2) = 16π cm².

Now, to find the total surface area (SA), we sum the lateral surface area and the base area:

SA = L + B = 28π + 16π = 44π cm².

Therefore,

The total surface area of the cone is 44π cm², where π represents the mathematical constant pi.

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y = 3x⁴ + 4x³
Find the
1) Domain
2) Intercepts
3) Asymptotes
4) Symmetry
5) Critical Points
6) Maxima/Minimum
7) Concavity

Answers

1)  The domain of Y = 3x⁴ + 4x³ is (-∞, ∞).

2) The x-intercepts are (0, 0) and (-4/3, 0) and the y-intercept is (0, 0)

3)  The horizontal asymptote is y = infinity.

4) Function does not exhibit any symmetry with respect to the y-axis or origin.

5)  The critical points are x = 0 and x = -1.

6)  The critical points are x = 0 and x = -1.

7) The function is concave down on the interval (-∞, -2/3) and concave up on the intervals (-2/3, 0) and (0, ∞).

How to find domain?

1) The domain of a polynomial function is all real numbers, so the domain of Y = 3x⁴ + 4x³ is (-∞, ∞).

How to find Intercepts?

2) To find the x-intercepts, we set Y equal to zero and solve for x:

0 = 3x⁴ + 4x³

0 = x³(3x + 4)

x = 0 or x = -4/3

Therefore, the x-intercepts are (0, 0) and (-4/3, 0).

To find the y-intercept, we set x equal to zero and solve for Y:

Y = 3(0)⁴ + 4(0)³

Y = 0

Therefore, the y-intercept is (0, 0).

How to find Asymptotes?

3) Polynomial functions do not have vertical asymptotes. However, as x approaches positive or negative infinity, the function approaches infinity. Therefore, the horizontal asymptote is y = infinity.

How to find Symmetry?

4) The function Y = 3x⁴ + 4x³ is neither even nor odd. Therefore, it does not exhibit any symmetry with respect to the y-axis or origin.

How to find Critical Points?

5) To find the critical points, we take the first derivative of Y and set it equal to zero:

Y' = 12x³ + 12x²

0 = 12x²(x + 1)

Therefore, the critical points are x = 0 and x = -1.

How to find Maxima/Minimum?

6) To determine whether the critical points are maxima or minima, we take the second derivative of Y and evaluate it at each critical point:

Y'' = 36x² + 24x

At x = 0, Y'' = 0, which means that the second derivative test is inconclusive. To determine whether x = 0 is a maxima or minima, we look at the sign of the first derivative to the left and right of the critical point. We find that Y' is negative to the left of x = 0 and positive to the right, so x = 0 is a local minimum.

At x = -1, Y'' = 12, which is positive. Therefore, x = -1 is a local minimum.

How to find Concavity?

7) To determine the concavity of the function, we look at the sign of the second derivative:

Y'' = 36x² + 24x

When Y'' > 0, the function is concave up, and when Y'' < 0, the function is concave down.

At x < -2/3, Y'' is negative, so the function is concave down.

At -2/3 < x < 0, Y'' is positive, so the function is concave up.

At x > 0, Y'' is positive, so the function is concave up.

Therefore, the function is concave down on the interval (-∞, -2/3) and concave up on the intervals (-2/3, 0) and (0, ∞).

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Quadratic function for (1,-3) in vertex form

Answers

The quadratic function in vertex form that passes through the point (1, -3) is: f(x) = (x - 1)²  - 3

What is vertex form?

Vertex form is a way of expressing a quadratic function of the form:

f(x) = a(x - h)² + k

where (h, k) is the vertex of the parabola, and a is a constant that determines the shape and direction of the parabola.

The quadratic function in vertex form is given by:

f(x) = a(x - h)²  + k

where (h, k) is the vertex of the parabola.

We are given the point (1, -3), which lies on the parabola. This means that:

f(1) = -3

Substituting x = 1 into the vertex form of the equation, we get:

f(1) = a(1 - h)²  + k

-3 = a(1 - h)²  + k

Since we don't know the value of h or a, we can't solve for k directly. However, we can use the vertex form of the equation to find the values of h and k.

The vertex of the parabola is the point (h, k). Since the parabola passes through the point (1, -3), we know that the vertex lies on the axis of symmetry, which is the vertical line x = 1.

Therefore, the x-coordinate of the vertex is h = 1. Substituting this into the equation above, we get:

-3 = a(1 - 1)²  + k

-3 = a(0) + k

k = -3

Now that we know the value of k, we can substitute it back into the equation above and solve for a:

-3 = a(1 - h)²  + k

-3 = a(1 - 1)²  + (-3)

-3 = a(0) - 3

a = 1

Therefore, the quadratic function in vertex form that passes through the point (1, -3) is:

f(x) = (x - 1)²  - 3

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A toy tugboat is launched from the side of a pond and travels North at 5cm/s. At the same moment, a toy sail ship from a point 8sqrt(2) m. Northeast of the tugboat and travels West at 7 cm/s. How closely do the two toys approach each other?\

Answers

The toys approach each other at the distance of  630 cm.

To solve the problem, we can use the Pythagorean theorem.

Let the distance between the tugboat and the sail ship be d, and

let t be the time in seconds since they started moving.

Then we have:

Distance traveled by the tugboat (in cm) = 5t

Distance traveled by the sail ship (in cm) = 7t/sqrt(2)

Using the Pythagorean theorem, we have:

d² = (5t)² + (7t/(\sqrt(2)))²

d² = 25t² + 24.5t²

d² = 49.5t²

d = \sqrt(49.5)t

To find how closely the two toys approach each other, we need to find the minimum value of d.

This occurs when t is maximized, which happens when the toys are closest to each other.

The sail ship travels a distance of 8\sqrt(2) meters in the Northeast direction, which is equivalent to 800\sqrt(2) cm. Therefore, the time taken for the sail ship to travel this distance is:

t = (800\sqrt(2) cm) / (7 cm/(\sqrt(2))) = 200\sqrt(2) seconds

Substituting this value of t in the equation for d, we get:

d = \sqrt(49.5)(200\sqrt(2)) = 630 cm (corrected)

Therefore, the minimum distance between the two toys is 630 cm.

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what is the unit rate of y=8x

Answers

The unit rate of the linear equation y = 8x is 8.

What is the unit rate of a linear equation?

A linear equation of a function illustrates the straight line on a coordinate plane. It can be expressed in a slope intercept form y = mx + b, where:

m = slopeb = y-intercept

The slope shows steep the gradient is and it is the change in the rise over the run. For a unit rate which is usually the ratio between two different quantities. We can say in the linear equation, the unit rate represents the slope of the function.

Given that:
y = 8x

To find the unit rate(slope) which is the change in the y-axis(rise) over the change in the x-axis(run) by using slope-intercept form. Then, we can conclude that the unit rate is 8.

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In a circle with radius 6 and angle intercepts an arc of length 3pi find the angle in radians in simplest form

Answers

In a circle with radius 6 and angle intercepts an arc of length 3π , the angle in radians in simplest form is π/2.

In a circle, the length of an arc is proportional to the angle that it intercepts. The ratio of the arc length to the circumference of the circle is equal to the ratio of the angle in radians to 2π. Thus, we can write:

(arc length) / (circumference) = (angle) / (2π)

In this problem, we are given that the circle has a radius of 6 and that the arc length is 3π. We can use the formula for the circumference of a circle, which is C = 2πr, to find the circumference of this circle:

C = 2πr = 2π(6) = 12π

Now we can use the formula above to find the angle in radians:

(3π) / (12π) = (angle) / (2π)

Simplifying this equation, we get:

angle = (3π * 2π) / 12π = 1/2 * π

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What is the explicit equation for the nth term of the arithmetic sequence 6.3, 3.6, 0.9, –1.8, –4.5, …? an = 6.3 – 2.7n an = 6.3 – 2.7(n – 1) an = 6.3 + 2.7n an = 6.3 + 2.7(n + 1)

Answers

The explicit equation for the nth term of the arithmetic sequence is an = 9 - 2.7n.

What is the implicit equation?

An implicit equation is an equation in which the variables are not explicitly expressed in terms of each other. In other words, the equation does not give a direct formula for one of the variables in terms of the other(s), but rather relates the variables through some function or equation.

What is the explicit equation?

An explicit equation is an equation in which one variable is expressed directly in terms of the other(s). In other words, the equation gives a formula for one of the variables in terms of the other(s).

According to the given information:

the first term of the sequence is a1 = 6.3, and the common difference between consecutive terms is d = -2.7 (since we subtract 2.7 from each term to get to the next term). Therefore, the explicit equation for the nth term of the sequence is:

an = 6.3 + (n - 1)(-2.7)

Simplifying this expression, we get:

an = 6.3 - 2.7n + 2.7

an = 9 - 2.7n

So the correct equation for the nth term of the arithmetic sequence 6.3, 3.6, 0.9, -1.8, -4.5, ... is:

an = 9 - 2.7n

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Third-, fourth-, and fifth-grade students collected food items to be sent to 2 different food pantries. The third-grade students collected 35 items and the fourth-grade students collected 25 items. each food pantry was given 50 items. write and solve an equation to find how many items fifth-grade collected

Answers

Answer: 35 + 25 + 50 / 2 = 85

Step-by-step explanation: You would have to add them all together and then divide them by 2.




Out of a group of 120 students that were surveyed about winter sports, 28 said they ski and 52 said they snowboard.


Sixteen of the students who said they ski said they also snowboard. If a student is chosen at random, find each


probability

Answers

The probability of  P(Ski) is 7 / 30, P(Snowboard) is 13 / 30,P(Ski & Snowboard) is 2/15 and P(ski or snowboard) is  8/15.

1. Probability of a student skiing (P(Ski)):
  P(Ski) = number of students who ski / total number of students = 28 / 120 = 7 / 30

2. Probability of a student snowboarding (P(Snowboard)):
  P(Snowboard) = number of students who snowboard / total number of students = 52 / 120 = 13 / 30

3. Probability of a student skiing and snowboarding (P(Ski & Snowboard)):
  P(Ski & Snowboard) = number of students who ski and snowboard / total number of students = 16 / 120 = 4 / 30

=2/15

4.Probability(ski or snowboard) = (7/30) + (13/30) - (2/15)

P(ski or snowboard) = 8/15
Therefore, the probabilities are:

P(ski) = 7/30

P(snowboard) = 13/30

P(ski and snowboard) = 2/15

P(ski or snowboard) = 8/15

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Manuel types at a rate of 34 words per minute. How many words does he type in 2 minutes?

Answers

Manuel can type 68 words in two minutes at a rate of 34 words per minute.

What is the number of words typed in the given time?

Given that; Manuel types at a rate of 34 words per minute.

To determine how many words Manuel can type in two minutes, we simply need to multiply his typing rate by the number of minutes he is typing.

Since Manuel is typing for two minutes

Hence;

Number of words = Typing rate × Time

Plugging in the values we have from the problem.

Number of words = 34 words/minute × 2 minutes

Simplifying

Number of words = 34 words × 2

Number of words = 68 words

Therefore, he can type 68 words in two minutes.

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V=-x2+14x -24 I need to find the range domain and graph?

Answers

I would recommend using an app called Desmos graphing calculator for the graph part!

For domain, that’s going to be the distance on your x-axis, which in this case should be something like:

Domain : (-infinity sign, infinity sign)
That’s because the line is continuous, therefore eventually running into all numbers on the x-axis.

Range: (-infinity, 25]
That’s because the highest number the line touches on the y-axis is 25, and continuously goes downwards.

Make sure to put the parenthesis on the infinity signs, and a bracket around 25!

A statistician for a chain of department stores created the following stem-and-leaf plot showing the number of pairs of glasses at each of the stores: \left| \quad \begin{matrix} 0 \vphantom{\Large{0}} \\ 1 \vphantom{\Large{0}} \\ 2 \vphantom{\Large{0}} \\ 3 \vphantom{\Large{0}} \\ 4 \vphantom{\Large{0}} \\ \end{matrix} \quad \right| \quad \begin{matrix} 9& \vphantom{\Large{0}} \\ 3&6&6&8& \vphantom{\Large{0}} \\ 1&2&3&5&6&9& \vphantom{\Large{0}} \\ 0& \vphantom{\Large{0}} \\ 1&2&3&3&5&7& \vphantom{\Large{0}} \\ \end{matrix} ∣ ∣ ∣ ∣ ∣ ∣ ∣ ∣ ∣ ∣ ∣ ​ 00 10 20 30 40 ​ ∣ ∣ ∣ ∣ ∣ ∣ ∣ ∣ ∣ ∣ ∣ ​ 9 3 1 0 1 ​ 0 6 2 0 2 ​ 6 3 3 ​ 8 5 3 ​ 0 6 5 ​ 9 7 ​ 0 0 ​ Key: 4\,|\,1=414∣1=414, vertical bar, 1, equals, 41 pairs of glasses What was the largest number of pairs of glasses at any one department store?

Answers

we can see that there is no stem value of 4 and therefore no department store with 49 pairs of glasses.

What is the purpose of a stem-and-leaf plot?

To find the largest number of pairs of glasses at any one department store, we need to examine the stem-and-leaf plot provided.

The stem-and-leaf plot shows the number of pairs of glasses at each store, with the first digit (the stem) indicating the tens place and the second digit (the leaf) indicating the ones place.

Looking at the plot, we can see that the largest stem is 4, which corresponds to the number 40. The largest leaf for stem 4 is 8, which corresponds to the number 48. Therefore, the largest number of pairs of glasses at any one department store is 48.

We can also verify this by scanning through the leaves in the plot and looking for the largest value. The largest leaf value is 9, which corresponds to the number 49. However, we can see that there is no stem value of 4 and therefore no department store with 49 pairs of glasses.

The largest number of pairs of glasses at any one department store is indeed 48.

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Philip is downloading applications (apps) and songs to his tablet. He
downloads 7 apps and 6 songs. Each song takes an average of 0.8 minutes
longer to download than each app. If it takes 21.7 minutes for his
downloads to finish, which of the following systems could be used to
approximate a, the average number of minutes it takes to download one
app, and s, the average number of minutes it takes to download one song?

Answers

Answer:

a + s = 21.7

7a = 6s - 0.8

Step-by-step explanation:

I just used pattern recognition in my head and stuff i dont know how to explain

The area of a rug is 108 square feet and the length it it’s diagonal is 14 feet. what are the length and width of the rug. write a system of equations tk answer this equation

Answers

The system of equation is 7.71 feet, under the condition the area of a rug is 108 square feet and the length it it’s diagonal is 14 feet.

Now to solve this problem, we can use the formula for the area of a rectangle which is A = L x W . Therefore, we can write the equation 108 = L x W

Now the length of the diagonal is 14 feet. We can use this information to write another equation using the Pythagorean theorem which states that for any right triangle with legs of length a and  b  and hypotenuse of length c ,
a² + b² = c²
Since a rectangle is made up of two right triangles, we can use this theorem to find the length and width of the rectangle.

Let us assume the length of the rug L and the width of the rug  W

L²+ W² = 14²

We have two equations with two unknowns

108 = L x W
L² + W² = 14²

We can solve for one variable in terms of another using substitution. From the first equation,

W = 108 / L

Substituting this into the second equation gives:


L² + (108 / L)² = 14²
L² - 196L² + 11664 = 0


This is a quadratic equation in terms of  L². We can solve for L²  


L² = (196 ± √(196² - 4 x 11664)) / 2
L² = (196 ± √(38416)) / 2
L² = (196 ± 196) / 2


Taking the positive root gives:

L² = 196

So:

L = √(196) = 14

Substituting this back into one of our original equations gives:

W = 108 / L
= 108 / 14
≈ 7.71

Therefore, the length of the rug is 14 feet and its width is approximately 7.71 feet.
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Diego selling raffle tickets for $1.75 per ticket complete the table to show how much she earned for 50 tickets 20 tickets and r tickets

Answers

Diego selling raffle tickets for $1.75 per ticket and she earned for 50 tickets is $87.50.

When a purchase, appropriation, requisition, or direct engagement with the customer occurs at the point of sale, the seller or supplier of the products or services completes a transaction. Title (property or ownership) of the object is transferred, and a price is settled, meaning a price is agreed upon for which the ownership of the item will transfer.

We can calculate how much money Diego would make if he sold each quantity of raffle tickets for $1.75 each using Excel's multiplication function. It is possible to create a table with the number of tickets sold in one column and the money taken in the other.

Diego would receive $17.50, for instance, if he sold 10 tickets (10 x $1.75). If he sold 20 tickets, he would earn $35 (20 x $1.75), and so on. Using Excel's fill handle, you can quickly fill the table with the totals for each sold ticket.

The table would look like this:

Number of Tickets Sold | Amount of Money Earned

•----------------------------------|---------------------------------------•

   10                                |    $17.50

   20                               |    $35.00

   30                               |    $52.50

   40                               |    $70.00

   50                               |    $87.50

By using the multiplication function in Excel, we can quickly calculate the amount of money Diego would earn for any number of raffle tickets sold at $1.75 per ticket.

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Find the solution tox'=y-x+ty'=yif x(0)=9 and y(0)=4.x(t)=y(t)=

Answers

The solution to the system of differential equations x' = y - x + t and y' = y with initial conditions x(0) = 9 and y(0) = 4 is x(t) = 10e^t - t - 1 and y(t) = 9e^t - 5t - 5.To find this solution, we first solve for y in the second equation:y' - y = 0y(t) = Ce^tNext, we substitute this expression for y into the first equation and solve for x:x' = Ce^t - x + tx' + x = Ce^t + tMultiplying both sides by e^t, we get:(e^t x)' = Ce^2t + te^tIntegrating both sides:e^t x(t) = (C/2)e^2t + te^t + DUsing the initial condition x(0) = 9, we get:D = 9Using the expression for y(t) and the initial condition y(0) = 4, we get:C = 5Substituting these values into the equation for x(t), we get:x(t) = 10e^t - t - 1Finally, we substitute the expression for y(t) into the given initial condition y(0) = 4 and solve for the constant C:C = 9 - 5tSubstituting this expression for C into the equation for y(t), we get:y(t) = 9e^t - 5t - 5

For more similar questions on topic Vectors in 2D is a sub-topic in linear algebra that deals with the study of vectors in two-dimensional space. In two-dimensional space, vectors are represented as ordered pairs of real numbers and can be used to describe quantities such as displacement, velocity, and force. The magnitude and direction of a vector can be calculated using trigonometry, and vectors can be added, subtracted, and multiplied by scalars using the rules of vector algebra.

In the context of the given problem, we are asked to find two unit vectors in 2D that make an angle of 45 degrees with a given vector 6i + 5j, where i and j are the unit vectors in the x and y directions, respectively. To solve this problem, we need to use the properties of vectors and trigonometry to find the appropriate unit vectors that satisfy the given conditions. The solution to this problem involves finding the components of the given vector, calculating the angle between this vector and the x-axis, and using this angle to construct the desired unit vectors.

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The solution to the system of differential equations is:
x(t) = 5 e^(t/2) - 4 e^(3t/2)
y(t) = 4

To solve this system of differential equations, we can use Laplace transforms. Taking the Laplace transform of both sides of each equation, we get:

sX(s) - x(0) = Y(s) - X(s) + T Y(s)
sY(s) - y(0) = Y(s)

Substituting in the initial conditions x(0) = 9 and y(0) = 4, we can solve for X(s) and Y(s):

X(s) = (s + 1)/(s^2 - s - T)
Y(s) = 4/s

To find x(t) and y(t), we need to inverse Laplace transform these expressions. We can use partial fractions to simplify the expression for X(s):

X(s) = A/(s - r1) + B/(s - r2)

where r1 and r2 are the roots of the denominator s^2 - s - T, given by:

r1 = (1 - sqrt(1 + 4T))/2
r2 = (1 + sqrt(1 + 4T))/2

Solving for A and B, we get:

A = (r2 + 1)/(r2 - r1)
B = -(r1 + 1)/(r2 - r1)

Substituting these values back into the expression for X(s), we get:

X(s) = (r2 + 1)/(r2 - r1)/(s - r1) - (r1 + 1)/(r2 - r1)/(s - r2)

Taking the inverse Laplace transform of this expression, we get:

x(t) = (r2 + 1)/(r2 - r1) e^(r1 t) - (r1 + 1)/(r2 - r1) e^(r2 t)

Substituting in the values for r1 and r2, we get:

x(t) = 5 e^(t/2) - 4 e^(3t/2)

Similarly, taking the inverse Laplace transform of Y(s) = 4/s, we get:

y(t) = 4

Therefore, the solution to the system of differential equations is:

x(t) = 5 e^(t/2) - 4 e^(3t/2)
y(t) = 4

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12. reasoning a rectangular piece of cardboard with dimensions 5 inches
by 8 inches is used to make the curved side of a cylinder-shaped
container. using this cardboard, what is the greatest volume the cylinder
can hold? explain.
answer asap

Answers

If a rectangular piece of cardboard with dimensions 5 inches by 8 inches is used to make the curved side of a cylinder-shaped container, the greatest volume the cylinder can hold is 80/π cubic inches.

To find the greatest volume the cylinder can hold, we need to determine the dimensions of the cylinder that can be made from the given cardboard.

First, we need to calculate the circumference of the cylinder using the length of the cardboard, which will be the height of the cylinder. The length of the cardboard is 8 inches, so the circumference of the cylinder will be 8 inches.

The circumference of a cylinder is given by the formula C = 2πr, where r is the radius of the cylinder.

Therefore, 8 = 2πr, or r = 4/π inches.

Next, we need to determine the length of the curved side of the cylinder, which is given by the formula L = 2πr.

So, L = 2π(4/π) = 8 inches.

Finally, we can calculate the volume of the cylinder using the formula V = πr²h, where h is the height of the cylinder, which is 5 inches.

V = π(4/π)²(5) = 80/π cubic inches.

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To conserve water, many communities have developed water restrictions. The water utility charges a fee of $34, plus an additional $1.36 per hundred cubic feet (HCF) of water. The recommended monthly bill for a household is between $60 and $85 dollars per month. If x represents the water usage in HCF in a household, write a compound inequality to represent the scenario and then determine the recommended range of water consumption. (Round your answer to one decimal place.

Answers

60 ≤ 1.36x + 34 ≤ 85; To stay within the range, the usage should be between 19.1 and 37.5 HCF.

Hown to write the inequality

The correct compound inequality to represent the scenario is:

60 ≤ 1.36x + 34 ≤ 85

To solve for x, we need to isolate it in the middle of the inequality:

60 - 34 ≤ 1.36x ≤ 85 - 34

26 ≤ 1.36x ≤ 51

Finally, we divide by 1.36 to isolate x:

19.12 ≤ x ≤ 37.5

Therefore, the recommended range of water consumption is between 19.1 and 37.5 HCF. The answer is (D) 60 ≤ 1.36x + 34 ≤ 85; To stay within the range, the usage should be between 19.1 and 37.5 HCF.

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complete question

To conserve water, many communities have developed water restrictions. The water utility charges a fee of $34, plus an additional $1.36 per hundred cubic feet (HCF) of water. The recommended monthly bill for a household is between $60 and $85 dollars per month. If x represents the water usage in HCF in a household, write a compound inequality to represent the scenario and then determine the recommended range of water consumption. (Round your answer to one decimal place.)

60 ≤ 1.36x − 34 ≤ 85; To stay within the range, the usage should be between 69.1 and 87.5 HCF.

60 ≤ 1.36x − 34 ≤ 85; To stay within the range, the usage should be between 44.1 and 87.5 HCF.

60 ≤ 1.36x + 34 ≤ 85; To stay within the range, the usage should be between 37.5 and 44.1 HCF.

60 ≤ 1.36x + 34 ≤ 85; To stay within the range, the usage should be between 19.1 and 37.5 HCF.

Tayshia mailed two birthday presents in a box weighing 14 pound. One present weighed 15 pound. The other present weighed 12 pound. What was the total weight of the box and the presents.





Group of answer choices



311 lb



1911 lb



1140lb



320lb

Answers

None of the provided answer choices are correct, as the correct answer should be 41 lb.

To find the total weight of the box and the presents, you simply add the weights together:

Box weight: 14 lb
Present 1 weight: 15 lb
Present 2 weight: 12 lb

Total weight = 14 lb + 15 lb + 12 lb = 41 lb

None of the provided answer choices are correct, as the correct answer should be 41 lb.

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i need help with these 30 points

Answers

Answer:

0 hrs 32 mins

Step-by-step explanation:

The circumstances if the base of the cone is 12π cm. If the volume of the cone is 96π, what is the height

Answers

24 cm  is the height of cone .

What is known as a cone?

A cone is a three-dimensional geometric object with a smooth transition from a flat, generally circular base to the apex, also known as the vertex.

                                      A cone is a three-dimensional geometric structure with a smooth transition from a flat base—often but not always circular—to the point at the top, also known as the apex or vertex. Cone. a right circular cone having the following measurements: height, slant height, angle, base radius, and height.

V=1/3hπr²

V = 1/3 * h * 12π

96π = 1/3 * h * 12π

96π * 3/12π  = h

 8 * 3   = h

  h = 24 cm

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Use cylindrical coordinates. Evaluate SITE . 742 + x2) dv, where E is the solid in the first octant that lies beneath the paraboloid z = 1 – x2 - y2. Need Help? Read It

Answers

To evaluate the given integral using cylindrical coordinates, we need to first express the given solid E and the differential volume element dv in terms of cylindrical coordinates.

In cylindrical coordinates, the paraboloid z = 1 – x^2 - y^2 can be expressed as z = 1 – r^2, where r is the distance from the z-axis and θ is the angle made with the positive x-axis. Since the solid E lies in the first octant, we have 0 ≤ r ≤ √(1-z), 0 ≤ θ ≤ π/2, and 0 ≤ z ≤ 1 – r^2.

The differential volume element dv in cylindrical coordinates is given by dv = r dz dr dθ.

Substituting these expressions in the given integral, we get:

SITE . 742 + x^2 dv = ∫∫∫E (742 + r^2) r dz dr dθ

= ∫θ=0π/2 ∫r=0√(1-z) ∫z=0^(1-r^2) (742 + r^2) r dz dr dθ

= ∫θ=0π/2 ∫r=0√(1-z) [(742r + r^3/3) - (742r^3/3 + r^5/5)] dr dθ

= ∫θ=0π/2 ∫z=0^1 [247/3(1-z)^(3/2) - 185/6(1-z)^(5/2)] dz dθ

= ∫θ=0π/2 [98/15 - 185/21] dθ

= ∫θ=0π/2 [56/315] dθ

= [28/315]π

Therefore, the value of the given integral using cylindrical coordinates is [28/315]π.

To evaluate the given integral using cylindrical coordinates, we need to express the function and limits of integration in terms of cylindrical coordinates (r, θ, z). The conversion between Cartesian and cylindrical coordinates is given by:

x = r*cos(θ)
y = r*sin(θ)
z = z

The given function in the problem is z = 1 - x^2 - y^2. Substituting the expressions for x and y in terms of cylindrical coordinates, we get:

z = 1 - r^2(cos^2(θ) + sin^2(θ))
z = 1 - r^2

Now, we need to find the limits of integration for r, θ, and z. Since E is the solid in the first octant, the limits for θ are 0 to π/2. For r, the limits are 0 to √(1 - z), and for z, the limits are 0 to 1. Then, the integral becomes:

∫(0 to π/2) ∫(0 to √(1 - z)) ∫(0 to 1) (742 + r^2cos^2(θ) + r^2sin^2(θ)) * r dz dr dθ

Solve this triple integral to find the volume of the solid E.

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The equation r = 3cos(6θ) represents a rose curve. How many petals does the graph contain

Answers

Check the picture below.

Answer:

C (12)

Step-by-step explanation:

You work for a contractor a customer wants you to install chicken wire along the perimeter of a rectangular garden that measures 8 feet by 6 feet what is the perimeter of a what is the perimeter in feet of the garden

Answers

The perimeter of the 8 feet by 6 feet rectangular garden is 28 feet.

We will need to install chicken wire along this entire length to satisfy the customer's requirements. Good luck with your project!

To find the perimeter of a rectangular garden, you can use the formula:

Perimeter = 2(Length + Width). In this case, the garden measures 8 feet by 6 feet,

so the length is 8 feet and the width is 6 feet.
Add the length and width.
8 feet + 6 feet = 14 feet
Multiply the sum by 2.
2(14 feet) = 28 feet.
The perimeter of the rectangular garden is 28 feet.

As a contractor, you will need to install chicken wire along this entire 28 feet of the garden's perimeter to meet the customer's request.
Remember to choose the appropriate type of chicken wire, considering factors such as durability, mesh size, and material (e.g., galvanized steel or plastic).

Additionally, we may need to install supporting posts at regular intervals to ensure the stability and effectiveness of the chicken wire fence.

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The bulldogs, a baseball team, has nine starting players the height of the starting players are 72in 71in 78in 70in 72in 72in 73in 70in and 72 in which team best describes the data value 78 in

Answers

The value 78 inches best describes the tallest player on the Bulldogs baseball team. This height is an outlier within the data set and may affect statistical analyses.

The Bulldogs, a baseball team, consists of nine starting players with varying heights. Their heights are as follows: 72 in, 71 in, 78 in, 70 in, 72 in, 72 in, 73 in, 70 in, and 72 in. To describe the data, we can analyze the presence of the 78 in height value.

In this case, the value 78 in represents the tallest player on the team. When examining this data set, it is important to understand how this value affects the overall distribution of heights among the players. One way to determine this is by calculating the mean, median, and mode of the height data.

The mean (average) height for the team is 71.22 inches, and the median (middle) value is 72 inches. The mode (most frequent) height is also 72 inches. The value 78 inches is above the mean and median values, indicating that it is an outlier, or a value that is significantly different from the majority of the other data points.

In conclusion, the value 78 inches best describes the tallest player on the Bulldogs baseball team. This height is an outlier within the data set and may affect statistical analyses. However, it provides valuable information about the diversity of heights among the starting players on the team.

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16


Last Us


A spherical exercise ball has a maximum diameter of 30 inches when filled with air. The ball was completely empty


at the start, and an electric air pump is filling it with air at the rate of 1600 cubic inches per minute.


The formula for the volume of a sphere is 4*


Part A


Enter an equation for the amount of air still needed to all the ball to its maximum volume, y, with respect to the


number of minutes the pump has been pumping air into the ball, X.


Part 8


Enter the total amount of air, in cubic inches, still needed to fill the ball after the pump has been running for 4


minutes


Part C


Enter the estimated number of minutes it takes to pump up the ball to its maximum volume.

Answers

Part A: The equation for the amount of air still needed is: y = 14,137.17 - 1600X

Part B: The total amount of air still needed to fill the ball after 4 minutes is 8,937.17 cubic inches.

Part C: It takes approximately 8.84 minutes to pump up the ball to its maximum volume.

Part A:

The formula for the volume of a sphere is 4/3πr³, where r is the radius. Since the maximum diameter of the exercise ball is 30 inches, its radius is 15 inches. Therefore, the maximum volume of the ball is:

4/3π(15)³ = 14,137.17 cubic inches

Let's let y represent the amount of air still needed to fill the ball to its maximum volume, and X represent the number of minutes the pump has been running. We know that the pump is filling the ball at a rate of 1600 cubic inches per minute. Therefore, the equation for the amount of air still needed is:

y = 14,137.17 - 1600X

Part B:

After 4 minutes, the pump has filled the ball with:

1600 x 4 = 6400 cubic inches

Using the equation from Part A, we can find the amount of air still needed after 4 minutes:

y = 14,137.17 - 1600(4) = 8,937.17 cubic inches

Therefore, the total amount of air still needed to fill the ball after 4 minutes is 8,937.17 cubic inches.

Part C:

To find the estimated number of minutes it takes to pump up the ball to its maximum volume, we can set the equation from Part A equal to 0 (since y represents the amount of air still needed):

0 = 14,137.17 - 1600X

Solving for X, we get:

X = 8.84

Therefore, it takes approximately 8.84 minutes to pump up the ball to its maximum volume.

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Round your answer to three decimal places. A car is traveling at 112 km/h due south at a point = kilometer north of an intersection. A police car 5 2 is traveling at 96 km/h due west at a point kilometer due east of the same intersection. At that instant, the radar in the police car measures the rate at which the distance between the two cars is changing. What does the radar gun register? km/h Round your final answers to four decimal places if necessary. Suppose that the average yearly cost per item for producing x items of a business product is 94 C(x) = 11 + The three most recent yearly production figures are given in the table. Year 012 Prod. (x) 7.2 7.8 8.4 Estimate the value of x'(2) and the current (year 2) rate of change of the average cost. x'(2) = ; The rate of change of the average cost is per year. Plate A baseball player stands 5 meters from home plate and watches a pitch fly by. In the diagram, x is the distance from the ball to home plate and is the angle indicating the direction of the player's gaze. Find the rate e' at which his eyes must move to watch a fastball with x'()=-45 m/s as it crosses home plate at x = 0. 05 Player O'= rad/s. Round your answers to the three decimal places. Repo A dock is 1 meter above water. Suppose you stand on the edge of the dock and pull a rope attached to a boat at the constant rate of a 1 m/s. Assume the boat remains at water level. At what speed is the boat approaching the dock when it is 10 meters from the dock? 15 meters from the dock? Isn't it surprising that the boat's speed is not constant? Guid At 10 meters.x'= at 15 meters x'=

Answers

The instant when the radar gun is used, the rate at which the distance between the two cars is changing is g'(t) = 7968t + 368/5 kilometers per hour.

Let's break down the problem. We have two cars, one traveling south at 112 km/h and another traveling west at 96 km/h. The police car is stationed at an intersection and the two cars are at different points relative to the intersection. The first car is 4/5 kilometer north of the intersection while the second car is 2/5 kilometer east of the intersection.

Let's call this distance "d". Using the Pythagorean theorem, we can write:

d² = (4/5)² + (2/5)² d² = 16/25 + 4/25 d² = 20/25 d = sqrt(20)/5 d = 2sqrt(5)/5 kilometers

Now, we need to find the rate at which the distance between the two cars is changing. This is equivalent to finding the derivative of the distance with respect to time. Let's call this rate "r".

To find "r", we need to use the chain rule. The distance between the two cars is a function of time, so we can write:

d = f(t)

where t is time. We can then write:

r = d'(t) = f'(t)

where d'(t) and f'(t) denote the derivatives of d and f with respect to time, respectively.

To find f'(t), we need to express d in terms of t. We know that the first car is traveling at a constant speed of 112 km/h due south. Let's call the position of the first car "x" and the time "t". Then we have:

x = -112t

The negative sign indicates that the car is moving south. Similarly, we can express the position of the second car in terms of time. Let's call the position of the second car "y". Then we have:

y = 96t

The positive sign indicates that the car is moving west.

Now, we can use these expressions to find the distance between the two cars as a function of time. Let's call this function "g(t)". Then we have:

g(t) = √((x + 4/5)² + (y - 2/5)²) g(t) = √((-112t + 4/5)² + (96t - 2/5)²)

To find g'(t), we need to use the chain rule. We have:

g'(t) = (1/2)(x + 4/5)'(x + 4/5)'' + (y - 2/5)'x(y - 2/5)''

where the primes denote derivatives with respect to time. We can simplify this expression by noting that x' = -112 and y' = 96. We also have x'' = y'' = 0, since the speeds of the two cars are constant.

Substituting these values, we get:

g'(t) = -112x(-112t + 4/5)/√((-112t + 4/5)² + (96t - 2/5)²) + 96x(96t - 2/5)/√((-112t + 4/5)² + (96t - 2/5)²)

Simplifying this expression, we get:

g'(t) = (-112x(-112t + 4/5) + 96x(96t - 2/5))/√((-112t + 4/5)² + (96t - 2/5)²)

We can further simplify this expression by multiplying out the terms in the numerator:

g'(t) = (-12544t + 560/5 + 9216t - 192/5)/√((-112t + 4/5)² + (96t - 2/5)²)

g'(t) = (7968t + 368/5)/√((-112t + 4/5)² + (96t - 2/5)²)

g'(t) = 7968t + 368/5

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Complete Question:

A car is traveling at 112 km/h due south at a point 4/5 kilometer north of an intersection_ police, the car Is traveling at 96 km/h due west to at point 2/5 kilometer due cust of the same intersection. At that instant; the radar in the police car measures the rate at which the distance between the two cars [ changing: What does the radar gun register?

For each problem, determine what will happen to the first factor?


10 x 1/2


15 x 7/2

Answers

When multiplying a whole number with a fraction, the first factor will be reduced to a fraction or a decimal, depending on the problem.

In both of the given problems, we are multiplying a whole number with a fraction. When we multiply a whole number with a fraction, we can simply multiply the whole number with the numerator of the fraction and keep the denominator as it is. So, in the first problem, we have 10 multiplied by 1/2. Multiplying 10 with 1 gives us 10, and then we divide it by 2, which gives us 5. Therefore, the first factor, which is 10, will be reduced to 5 in this problem.

In the second problem, we have 15 multiplied by 7/2. Multiplying 15 with 7 gives us 105, and then we divide it by 2, which gives us 52.5. Therefore, the first factor, which is 15, will be reduced to 52.5 in this problem.

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Which table has a constant of proportionality between

yy and

xx of
12
1212?
Choose 1 answer:
Choose 1 answer:
(Choice A)

xx

yy
1
2
2
1

start fraction, 1, divided by, 2, end fraction
6
66
2
22
24
2424
10
1010
120
120120

A

xx

yy
1
2
2
1

start fraction, 1, divided by, 2, end fraction
6
66
2
22
24
2424
10
1010
120
120120
(Choice B)

xx

yy
1
4
4
1

start fraction, 1, divided by, 4, end fraction
3
33
3
33
60
6060
12
1212
144
144144

B

xx

yy
1
4
4
1

start fraction, 1, divided by, 4, end fraction
3
33
3
33
60
6060
12
1212
144
144144
(Choice C)

xx

yy
1
3
3
1

start fraction, 1, divided by, 3, end fraction
4
44
6
66
78
7878
9
99
117
117117

C

xx

yy
1
3
3
1

start fraction, 1, divided by, 3, end fraction
4
44
6
66
78
7878
9
99
117
117117

Answers

The table that have a constant of proportionality between y and x of 12 is the first table

What is the table that have a constant of proportionality between y and x of 12?

From the question, we have the following parameters that can be used in our computation:

The table of values

From the first table of values, we have the following readings

(x, y) = (1/2, 6), (2, 24) and (10, 120)

Using the above as a guide, we have the following:

The constant of proportionality between y and x in the graph is

k = y/x

Substitute the known values in the above equation, so, we have the following representation

k = 6/(1/2) = 24/2 = 120/10

Evaluate

k = 12 = 12 = 12

Hence, the constant of proportionality between y and x in the first table is 12

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Complete question

Which table has a constant of proportionality between y and x of 12?

x          1/2               2             10

y           6                24          120

x          1/4               3             12

y           3                60          144

x          1/3               6             9

y           4                78          117

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