Nicole has 28 nickels and dimes that amount to $1. 85 how many of each coin does she have

Answers

Answer 1

Answer:

Nicole has 9 dimes and 19 nickels.

Answer 2
Nicole has 9 dimes and 19 nickels.

Related Questions

Find the equation of a line that goes throught point -2,-5 and is parallel to y = x + 2

Answers

The equation of the line that goes through the point (-2, -5) and is parallel to y = x + 2 is y = x - 3.

To find the equation of a line that goes through the point (-2, -5) and is parallel to y = x + 2, we will follow these steps:

1. Identify the slope of the given line.
2. Use the slope and the given point to find the equation of the new line.

Step 1: Identify the slope of the given line.
The equation of the given line is y = x + 2. This is in slope-intercept form (y = mx + b), where m is the slope and b is the y-intercept. In this case, the slope (m) is 1, as it is the coefficient of x.

Step 2: Use the slope and the given point to find the equation of the new line.
Since the new line is parallel to the given line, it will have the same slope. Therefore, the slope of the new line is also 1.

Now, we will use the point-slope form of a linear equation, which is given by y - y1 = m(x - x1), where m is the slope, and (x1, y1) is the given point.

Plugging in the values, we have:
y - (-5) = 1(x - (-2))
y + 5 = 1(x + 2)

Now, let's rewrite the equation in slope-intercept form:
y + 5 = x + 2
y = x + 2 - 5
y = x - 3

So, the equation of the line that goes through the point (-2, -5) and is parallel to y = x + 2 is y = x - 3.

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Let g(x.y)= 15x2 +2y2. Compute g(3,3), g(0,-2), and g(a,b). g(3,3)= _____

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The function g(x, y) is defined as 15x^2 + 2y^2. To compute g(3,3), g(0,-2), and g(a,b), we substitute the given values into the function.

To find g(3,3), we substitute x = 3 and y = 3 into the function g(x, y) = 15x^2 + 2y^2:

g(3,3) = 15(3)^2 + 2(3)^2

g(3,3) = 135 + 18

g(3,3) = 153

To find g(0,-2), we substitute x = 0 and y = -2 into the function g(x, y) = 15x^2 + 2y^2:

g(0,-2) = 15(0)^2 + 2(-2)^2

g(0,-2) = 0 + 8

g(0,-2) = 8

To find g(a,b), we substitute x = a and y = b into the function g(x, y) = 15x^2 + 2y^2:

g(a,b) = 15a^2 + 2b^2

Note: The function g(a,b) cannot be simplified further without knowing the values of a and b.

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if a1=5 and an=an-1 -1 then find the value of a4

Answers

a4 = 2

It is given that,

[tex]a_{1} = 5[/tex], and

[tex]a_{n} = (a_{n-1}) - 1[/tex]

Therefore, it can be said,

[tex]a_{2} = a_{1} - 1\\a_{3} = a_{2} - 1\\a_{4} = a_{3} - 1\\[/tex]

That is,

[tex]a_{2} = 5-1=4\\a_{3} = 4-1=3\\a_{4} = 3-1=2[/tex]

So, a4 = 2

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20 points for this IF RIGHT ANSWER

Answers

The surface area of the solids are listed below:

Case 1: A = 366 mm²

Case 2: A = 448 cm²

Case 3: A = 748 m²

Case 4: A = 221.5 in²

Case 5: A = 692 in²

Case 6: A = 276 ft²

How to determine the surface area of a solid

In this question we need to determine the surface area of six solids, that is, the sum of areas of all faces in each solid. The solids can include areas of rectangles and triangles, whose formulas are:

Rectangle

A = b · h

Triangle

A = 0.5 · b · h

Where:

A - Area of the face.b - Base of the face.h - Height of the face.

Case 1

A = 2 · (13 mm) · (3 mm) + 2 · (13 mm) · (9 mm) + 2 · (9 mm) · (3 mm)

A = 78 mm² + 234 mm² + 54 mm²

A = 366 mm²

Case 2

A = 2 · (20 cm) · (6 cm) + 2 · (4 cm) · (6 cm) + 2 · (20 cm) · (4 cm)

A = 240 cm² + 48 cm² + 160 cm²

A = 448 cm²

Case 3

A = 2 · (5 m) · (14 m) + 2 · (16 m) · (14 m) + 2 · (5 m) · (16 m)

A = 748 m²

Case 4

A = 2 · (2 in) · (6.5 in) + 2 · (11.5 in) · (6.5 in) + 2 · (11.5 in) · (2 in)

A = 221.5 in²

Case 5

A = 2 · 0.5 · (12 in) · (7 in) + (11 in) · (19 in) + (9 in) · (19 in) + (12 in) · (19 in)

A = 692 in²

Case 6

A = 2 · 0.5 · (8 ft) · (3 ft) + 2 · (5 ft) · (14 ft) + (8 ft) · (14 ft)

A = 276 ft²

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Answer: Goofy Ahh

Step-by-step explanation:

That question is so Goofy Ahh

Weeee

The first number is 30% less than the second number and the third number is 40% more than the second number.What is the ratio of the first number to the third number?

Answers

Let's assume the second number to be 'x'.

According to the problem, the first number is 30% less than the second number.

This means the first number will be (1-30/100)x = 0.7x

Similarly, the third number is 40% more than the second number.

This means the third number will be (1+40/100)x = 1.4x

Now, we are asked to find the ratio of the first number to the third number:

Ratio of the first number to the third number = 0.7x/1.4x

Ratio of the first number to the third number = 1/2

Therefore, the ratio of the first number to the third number is 1:2.
Let second number be x

First number Is 30% less than 2nd number. Therefore the 1st number is = 70%x = 0.7x

3rd number. is 40% more than 2nd number. Therefore
3rd number.= x + 40%x = x+0.4x = 1.4x

The required ratio of 3rd and 1st number. is 1.4x/0.7x = 1.4/0.7= 2/1.

Required ratio of 1st :3rd number = 1:2

A buoy is floating in the water near a lighthouse. The height of the lighthouse is 18 meters, and the horizontal distance from the buoy to the base of the lighthouse is 45 meters. What is the approximate angle of elevation from the buoy to the top of the lighthouse, rounded to the nearest whole degree?

Answers

The equivalent expression is $\boxed{4^{15} \cdot 5^{10}}$.

Find out the simplified expression inside the parentheses?

We can simplify the expression inside the parentheses first, using the rule that says when you raise a power to another power, you multiply the exponents:

$\left(\dfrac{4^{3}}{5^{-2}}\right)^{5} = \left(4^{3} \cdot 5^{2}\right)^{5}$

Now, we can use the rule that says when you raise a product to a power, you raise each factor to the power:

$\left(4^{3} \cdot 5^{2}\right)^{5} = 4^{3 \cdot 5} \cdot 5^{2 \cdot 5}$

Simplifying further:

$4^{3 \cdot 5} \cdot 5^{2 \cdot 5} = 4^{15} \cdot 5^{10}$

we can substitute this expression back into the original expression:

$\left(\dfrac{4^{3}}{5^{-2}}\right)^{5} = \left(4^{3} \cdot 5^{2}\right)^{5}$

To simplify this expression further, we can use the rule that says when you raise a product to a power, you raise each factor to the power:

$\left(4^{3} \cdot 5^{2}\right)^{5} = 4^{3 \cdot 5} \cdot 5^{2 \cdot 5}$

Simplifying the exponents, we get:

$4^{3 \cdot 5} \cdot 5^{2 \cdot 5} = 4^{15} \cdot 5^{10}$

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Use undetermined coefficients to solve the nonhomogeneous equation


y″+11y′+28y=e^(5x)+x+4


a) write the characteristic equation of the associated homogeneous part by using the variable .

b) write the solution the associated homogeneous part, by using arbitrary constants 1 and 2 for 1 and 2. (note that: the order of the solutions are very important. you should write first 1 such that 1(−1/4)= and second 2 such that 2(−1/7)=.)


c) write the form of the any particular solution (we are using ,, etc. for undetermined coefficients for the correspoding functions in in the same order.):

and evaluate its derivatives and then found ″

d) thus evaluate the undetermined coefficients

e) finally write the general solution y=

Answers

a) The characteristic equation is r^2 + 11r + 28 = 0.

b) The associated homogeneous equation are y1(x) = c1e^(-4x) and y2(x) = c2e^(-7x).

c) The form of the particular solution is y_p(x) = Ae^(5x) + Bx + C.

d) By solving the system of equations, it gives A = 1/28, B = 1/28, and C = -211/196.

e) The general solution is y(x) = c1e^(-4x) + c2e^(-7x) + (1/28)e^(5x) + (1/28)x - 211/196.

a) The characteristic equation of the associated homogeneous equation is r^2 + 11r + 28 = 0.

b) Factoring the characteristic equation gives (r + 4)(r + 7) = 0, so the solutions to the associated homogeneous equation are y1(x) = c1e^(-4x) and y2(x) = c2e^(-7x).

c) The form of the particular solution is y_p(x) = Ae^(5x) + Bx + C. Taking the first and second derivatives of y_p(x) gives y_p'(x) = 5A + B and y_p''(x) = 0.

d) Substituting y_p(x), y_p'(x), and y_p''(x) into the original nonhomogeneous equation gives:

0 + 11(5A + B) + 28(Ae^(5x) + Bx + C) = e^(5x) + x + 4

Simplifying this equation gives:

(28A)e^(5x) + (28B)x + 11(5A) + 11B + 28C = e^(5x) + x + 4

Comparing coefficients gives the system of equations:

28A = 1

28B = 1

11(5A) + 11B + 28C = 4

Solving this system of equations gives A = 1/28, B = 1/28, and C = -211/196.

e) The general solution to the nonhomogeneous equation is y(x) = y_h(x) + y_p(x), where y_h(x) = c1e^(-4x) + c2e^(-7x) and y_p(x) = (1/28)e^(5x) + (1/28)x - 211/196. Therefore, the general solution is:

y(x) = c1e^(-4x) + c2e^(-7x) + (1/28)e^(5x) + (1/28)x - 211/196.

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4x - 2y = -1
8x - 4y = -2
what method is most efficient to use and what is the answer

Answers

Elimination is most efficient to use

x and y have infinite solution

First, we will solve one equation for one variable in terms of the other variable. Let's solve the first equation for y in terms of x:

4x - 2y = -1

-2y = -4x - 1

y = 2x + 1/2

Now we can substitute this expression for y into the second equation:

8x - 4y = -2

8x - 4(2x + 1/2) = -2

8x - 8x - 2 = -2

-2 = -2

This is a true statement, which means that the system of equations has infinitely many solutions. In other words, any value of x will satisfy the system of equations.

So the answer is that the system of equations has infinitely many solutions.

Determine the missing length in each right triangle using the Pythagorean theorem. Round the answer to the nearest tenth, if necessary

Answers

The evaluated missing length in right triangle by using the Pythagorean theorem is  9 yards under the condition given the triangle is a right triangle.

The Pythagoras theorem projects that in a right triangle, the square of the hypotenuse is equal to the sum of the square of the other two sides,
It is given to us that in a right triangle,
Hypotenuse = 15 yd
Perpendicular = 12 yd

Therefore, applying Pythagoras theorem;
Base² = 15² - 12²

Base² = 225 - 144

Base² = 81

Base = √81

Base = 9 yards

Hence, The missing length present in the right triangle by applying the Pythagorean theorem is,
9 yards

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The complete question is

Determine the missing length in each right triangle using the Pythagorean theorem. Round the answer to the nearest tenth, if necessary


ASAP THX!!! ANSWER GETS BRAINLIEST

Rachel went to the grocery store and spent $68. She now has only $23 to get gasoline with before she returns home. How much money did Rachel have before she went grocery shopping? Create an equation to represent the situation. Make sure to identify and label your variable. Solve for the variable and describe your answer. Show your work and prove your solution to be correct

Answers

The solution is correct, as both sides of the equation are equal.

To find out how much money Rachel had before she went grocery shopping, we can create an equation using a variable.

Let x represent the amount of money Rachel had before grocery shopping.

The equation for the situation would be: x - $68 = $23

Now, let's solve for x:
Step 1: Add $68 to both sides of the equation:
x = $23 + $68

Step 2: Calculate the sum:
x = $91

So, Rachel had $91 before she went grocery shopping.

To prove the solution is correct, we can plug the value of x back into the equation:
$91 - $68 = $23
$23 = $23

Hence, both are equal.

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If Juan does not read any books before day 4 and he starts reading at the same


rate as Patti for the rest of the month, how many books will he have read by


day 12?


A. 5


B. 10


C. 15


D. 20

Answers

If Juan does not read any books before day 4 and he starts reading at the same rate as Patti for the rest of the month, he would have read 6 books by day 12. The correct option is A.

If Juan does not read any books before day 4, it means he has missed out on the opportunity to read for the first three days. Assuming Patti and Juan have been reading at the same rate since day 4, we can calculate the total number of books they would have read by day 12.

Patti reads one book per day, so by day 12, she would have read a total of 9 books (from day 4 to day 12). If Juan starts reading at the same rate as Patti from day 4, he would also have read 9 books by day 12.

However, we have to account for the fact that Juan did not read any books before day 4. This means that he missed out on the opportunity to read 3 books (one book per day for the first three days). Therefore, by day 12, Juan would have read a total of 6 books (3 books missed + 3 books read from day 4 to day 12).

Therefore, the answer is A. Juan would have read 5 books less than Patti by day 12, since Patti would have read a total of 9 books and Juan would have only read 6.

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Can please write answer in box Please Thank you
Find the total differential. w = x15yz11 + sin(yz) = dw =

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The total differential of w is given by dw = (∂w/∂x)dx + (∂w/∂y)dy + (∂w/∂z)dz + (∂w/∂z)(∂z/∂y)dy + (∂w/∂z)(∂z/∂z)dz.

Differentiation is a process of finding the changes in any function with a small change in By differentiation, it can be checked that how much a function changes and it also shows the way of change Differentiation is being used cost, production and other management decisions. It gives the rate of change independent variable with respect to the independent variable.                                                                                                             First, let's get the partial derivatives of w with respect to x, y, and z: ∂w/∂x = 15x^14yz^11, ∂w/∂y = x^15z^11cos(yz), ∂w/∂z = 11x^15y^z^10 + x^15y^11cos(yz). Next, we need to find (∂w/∂z)(∂z/∂y): ∂z/∂y = cos(y)
So, (∂w/∂z)(∂z/∂y) = x^15y^11z^10cos(y). Substituting these values into the formula for the total differential, we get: dw = (15x^14yz^11)dx + (x^15z^11cos(yz))dy + (11x^15y^z^10 + x^15y^11cos(yz))dz + (x^15y^11z^10cos(y))dy
Simplifying, we get: dw = 15x^14yz^11dx + x^15z^11cos(yz)dy + (11x^15y^z^10 + x^15y^11cos(yz) + x^15y^11z^10cos(y))dz.

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Consider the function f(x,y) = 4x^4 - 4x^²y + y^2 + 9 and the point P(-1,1). a. Find the unit vectors that give the direction of steepest ascent and steepest descent at P. b. Find a vector that points in a direction of no change in the function at P.

Answers

The unit vector in the direction of steepest ascent at P is <-4/sqrt(17), -1/sqrt(17)>,  and the unit vector in the direction of steepest descent at P is <4/sqrt(17), 1/sqrt(17)>.  A vector that points in a direction of no change at P is ⟨-1,1⟩.

To find the direction of steepest ascent/descent at P(-1,1) for f(x,y) = 4x^4 - 4x^2y + y^2 + 9, we need to find the gradient vector evaluated at P and then normalize it to get a unit vector. The gradient vector is given by

grad f(x,y) = <∂f/∂x, ∂f/∂y> = <16x^3 - 8xy, -4x^2 + 2y>

So, at P(-1,1), the gradient vector is

grad f(-1,1) = <16(-1)^3 - 8(-1)(1), -4(-1)^2 + 2(1)> = <-8,-2>

To find the unit vector that gives the direction of steepest ascent, we normalize the gradient vector

||grad f(-1,1)|| = sqrt[(-8)^2 + (-2)^2] = sqrt(68)

So, the unit vector in the direction of steepest ascent at P is

u = (1/sqrt(68))<-8,-2> = <-4/sqrt(17), -1/sqrt(17)>

To find the unit vector that gives the direction of steepest descent, we take the negative of the gradient vector and normalize it

||-grad f(-1,1)|| = ||<8,2>|| = sqrt[8^2 + 2^2] = sqrt(68)

So, the unit vector in the direction of steepest descent at P is

v = (1/sqrt(68))<8,2> = <4/sqrt(17), 1/sqrt(17)>

To find a vector that points in a direction of no change in the function at P, we need to find a vector orthogonal to the gradient vector at P. One such vector is

n = <2,-8>

To see why this works, note that the dot product of the gradient vector and n is

<16x^3 - 8xy, -4x^2 + 2y> . <2,-8> = 32x^3 - 16xy - 4x^2y + 2y^2

Evaluating this at P(-1,1), we get

32(-1)^3 - 16(-1)(1) - 4(-1)^2(1) + 2(1)^2 = 0

So, the vector n is orthogonal to the gradient vector at P and points in a direction of no change in the function.

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If f(x) = x2 + 4x + 6, find the following values. = 1. f(a) = 2. f(a - 1) = 3. f(a + 1) =

Answers

To find the values of f(a), f(a-1), and f(a+1) when f(x) = x^2 + 4x + 6, So, the values are:  f(a) = a^2 + 4a + 6, f(a-1) = a^2 + 6a + 3, f(a+1) = a^2 + 6a + 11.

we simply substitute the given values of a into the function.
1. f(a) = a^2 + 4a + 6
2. f(a-1) = (a-1)^2 + 4(a-1) + 6 = a^2 + 2a + 1 + 4a - 4 + 6 = a^2 + 6a + 3
3. f(a+1) = (a+1)^2 + 4(a+1) + 6 = a^2 + 2a + 1 + 4a + 4 + 6 = a^2 + 6a + 11
So, the values are:
1. f(a) = a^2 + 4a + 6
2. f(a-1) = a^2 + 6a + 3
3. f(a+1) = a^2 + 6a + 11

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Find the error & explain why it is wrong:
megan solved the following problem. what did she do wrong?
what is (f - g)(2)?
f(x) = 3x2 – 2x + 4
g(x) = x2 – 5x + 2

Answers

The value of (f-g)(2) is 16, provided that Megan has made no mistakes in the calculation.

Find the error in the given problem solved by Megan?

The problem asks us to compute the value of (f - g)(2) where f(x) = 3x^2 - 2x + 4 and g(x) = x^2 - 5x + 2.

The notation (f - g)(2) means that we need to subtract g(x) from f(x) and then evaluate the result at x = 2. We can do this as follows:

(f - g)(x) = f(x) - g(x) = (3x^2 - 2x + 4) - (x^2 - 5x + 2) = 2x^2 + 3x + 2

Substituting x = 2, we get:

(f - g)(2) = 2(2)^2 + 3(2) + 2 = 16

Therefore, the value of (f - g)(2) is 16.

It's worth noting that the problem statement mentions "what did she do wrong?" without providing any context or information about what Megan did or didn't do. So, it's not possible to identify any error in Megan's solution based on the given information. However, based on the correct computation above, we can be sure that (f - g)(2) is indeed equal to 16.

In other words, it can be described as,

The error in Megan's solution is not clear from the given statement. However, it seems that she may have made an error while computing (f-g)(2).

To compute (f-g)(2), we need to subtract g(2) from f(2) as follows:

f(2) = 3(2)^2 - 2(2) + 4 = 12

g(2) = (2)^2 - 5(2) + 2 = -4

Therefore, (f-g)(2) = f(2) - g(2) = 12 - (-4) = 16. is the final conclusion.

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Which is a correct example of deductive reasoning?


A. Seven straight tosses of a number cube landed on 1. The next toss will land on 1.


B. Every bicyclist Lynn has seen was on a red bike. The next bicyclist Lynn sees will be on a red bike.


C. All rectangles have four sides. All squares are rectangles. Therefore, all squares have four sides.


D.


All tennis players are athletic. Erica is athletic. Therefore, Erica is a tennis player

Answers

C. All rectangles have four sides. All squares are rectangles. Therefore, all squares have four sides.

This is an example of deductive reasoning because it starts with a general statement (all rectangles have four sides) and then applies a specific example (squares are rectangles) to come to a logical conclusion (all squares have four sides).

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A foam cylinder, with a diameter of 3 inches and height of 4 inches, is carved into the shape of a cone. what is the


maximum volume of a cone that can be carved? round your answer to the hundredths place.

Answers

The maximum volume of a cone that can be carved from the foam cylinder is approximately 9.42 cubic inches.

Given data:

diameter = 3 inches

radius = r = 3 ÷ 2 = 1.5 inches

height = 4 inches

We need to find the maximum volume of a cone that can be carved from the foam cylinder. The volume of a cone is given by the formula:

V = [tex]\frac{1}{3}\pi r^2h[/tex]

where:

V = volume

r = radius of the base

h = height

π = 3.14.

Substituting the r, h, and  π values in the formula, we get:

V = [tex]\frac{1}{3}[/tex]π[tex]r^2[/tex]h

V = [tex]\frac{1}{3}[/tex] × π × (1.5)² ×(4)

V =  [tex]\frac{1}{3}[/tex] × π × 2.25 ×(4)

V = 3 π

V = 9.42 cubic inches

Therefore, the maximum volume of a cone is 9.42 cubic inches.

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true or false, Inflation occurs in an economy when there's a reduction in the total amount of money.

Answers

Answer:

False.

Inflation occurs in an economy when there is an increase in the overall price level of goods and services over time. It is usually caused by factors such as an increase in the money supply, higher demand for goods and services, or a decrease in the supply of goods and services. Therefore, a reduction in the total amount of money in an economy would generally lead to deflation, which is the opposite of inflation.

how many times does five go into 6

Answers

Answer:

1 time, though your answer would be ongoing. If you the actual answer, it's 1.2

Step-by-step explanation:

Round to the nearest tenth.

Answer:

1.2

Step-by-step explanation:

Five can go into six 1.2 times because (1.2)(5)=6. Of course, if you want to know how many times five can go into 6 as a WHOLE, then the answer would obviously be 1.

Hope this helps a bit :)

The diagram below shows a quadratic curve. Determine the equation of the curve, giving your answer in the form ax²+bx+c y = = 03 where a, b and care integers. y i 32 (2.0) (8.0)​

Answers

Answer:

Step-by-step explanation:

Without a diagram, I cannot determine the equation of the curve. However, I can provide you with the general steps to find the equation of a quadratic curve given three points on the curve.

Let the three points be (x1, y1), (x2, y2), and (x3, y3). Then the equation of the quadratic curve in the form ax²+bx+c can be found using the following system of equations:

y1 = a(x1)² + b(x1) + c

y2 = a(x2)² + b(x2) + c

y3 = a(x3)² + b(x3) + c

Solving this system of equations simultaneously will give us the values of a, b, and c, which we can use to write the equation of the quadratic curve.

However, since you have only provided three y-values (32, 2.0, and 8.0), without their corresponding x-values or the diagram, it is not possible to determine the equation of the curve.

Please help! asap! (any accounts that give links will be reported)



⊙O and ⊙P are given with centers (−2, 7) and (12, −1) and radii of lengths 5 and 12, respectively. Using similarity transformations on ⊙O, prove that ⊙O and ⊙P are similar. Explain

Answers

We have shown that ⊙O and ⊙P are similar using similarity transformations.

To prove that ⊙O and ⊙P are similar using similarity transformations, we need to show that they have the same shape . Let's consider a dilation transformation with a scale factor of 2, centered at point A, which is the midpoint of the line segment connecting the centers of ⊙O and ⊙P:

1.Draw a line segment connecting the centers of ⊙O and ⊙P, and label the midpoint of this line segment as point A.

2.Draw two radii from the centers of ⊙O and ⊙P to a point B on the circumference of ⊙O, and label the intersection point of AB and ⊙P as point C.

3.Draw a perpendicular line from point A to BC, and label the intersection point as point D.

4.Since AD is the perpendicular bisector of BC, we have BD = DC.

5.By the properties of dilation, the length of any line segment on ⊙O is doubled when it is transformed by a dilation with a scale factor of 2 centered at A.

6.Therefore, the length of BD is doubled to become BE, and the length of DC is doubled to become CF.

7.Since ⊙O is transformed to a circle with center A and radius 10, and ⊙P is transformed to a circle with center A and radius 24, we can see that they have the same shape but different sizes.

Therefore, we have shown that ⊙O and ⊙P are similar using similarity transformations.

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I need help on the quesrion attached

Answers

A simplification of the expression [tex]\frac{x^3y^3 \cdot x^3 }{4x^2}[/tex] is [tex]\frac{x^4y^3 }{4}[/tex].

What is an exponent?

In Mathematics, an exponent is a mathematical operation that is commonly used in conjunction with an algebraic equation or expression, in order to raise a given quantity to the power of another.

Mathematically, an exponent can be represented or modeled by this mathematical expression;

bⁿ

Where:

the variables b and n are numbers (numerical values), letters, or an algebraic expression.n is known as a superscript or power.

By applying the division and multiplication law of exponents for powers of the same base to the given algebraic expression, we have the following:

[tex]\frac{x^3y^3 \cdot x^3 }{4x^2}=\frac{x^{3+3-2}y^3 }{4}\\\\\frac{x^{3+3-2}y^3 }{4}=\frac{x^4y^3 }{4}[/tex]

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Complete Question;

Simplify each of the expressions given.

Beatrice used a slingshot to launch an egg into the air. She recorded the egg’s path using a motion detector. The following data represents the height (in feet) of the egg at certain time points (in seconds): { ( 0.0 , 16 ) , ( 1.7 , 20.46 ) , ( 2.5 , 23.16 ) , ( 3.7 , 23.51 ) , ( 5.1 , 20.07 ) , ( 6.6 , 12.4 ) , ( 7.3 , 5.62 ) , ( 8.0 , 0.15 ) }

Step 4: Determine the height from which the egg was launched.
8 feet
3 feet
16 feet
0 feet

Answers

Answer:

mmm, well, not much we can do per se, you'd need to use a calculator.

I'd like to point out you'd need a calculator that has regression features, namely something like a TI83 or TI83+ or higher.

That said, you can find online calculators with "quadratic regression" features, which is what this, all you do is enter the value pairs in it, to get the equation.

Step-by-step explanation:

Thr ratio of measures of the angle is ABC IS 4:13:19. Find the measure of the angle. This is geometry

Answers

The measure of angle A is 20 degrees, the measure of angle B is 65 degrees, and the measure of angle C is 95 degrees.

To find the measure of the angles in triangle ABC, we first need to determine the total ratio of measures.

The total ratio is 4 + 13 + 19 = 36.

Next, we can use the ratios to find the measure of each angle.

Let x be the measure of the smallest angle in triangle ABC.

Then the measures of the angles are:

Angle A = 4x
Angle B = 13x
Angle C = 19x

We know that the sum of the angles in a triangle is 180 degrees, so we can set up the equation:

4x + 13x + 19x = 180

Simplifying, we get:

36x = 180

Dividing both sides by 36, we get:

x = 5

Therefore, the measures of the angles in triangle ABC are:

Angle A = 4x = 4(5) = 20 degrees
Angle B = 13x = 13(5) = 65 degrees
Angle C = 19x = 19(5) = 95 degrees

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Water flows into an empty reservoir at a rate of 3200+ 5t gal/hour. What is the quantity of water in the reservoir after 11 hours? Answer:_____ gallons.

Answers

To find the quantity of water in the reservoir after 11 hours, we need to integrate the rate of flow with respect to time from 0 to 11. The quantity of water in the reservoir after 11 hours is 38,225 gallons.

∫(3200 + 5t) dt from 0 to 11
= [(3200 * 11) + (5/2 * 11^2)] - [(3200 * 0) + (5/2 * 0^2)]
= 35,200 + 302.5
= 35,502.5 gallons
Therefore, the quantity of water in the reservoir after 11 hours is 35,502.5 gallons.

To find the quantity of water in the reservoir after 11 hours with the rate of 3200 + 5t gal/hour, we need to first find the total amount of water that flows into the reservoir within that time.
Step 1: Identify the given rate of flow: 3200 + 5t gal/hour.
Step 2: Integrate the flow rate function with respect to time (t) to find the total quantity of water. The integral of the function will give us the quantity of water in gallons:
∫(3200 + 5t) dt = 3200t + (5/2)t^2 + C, where C is the constant of integration.
Since the reservoir is initially empty, the constant C will be 0.
Step 3: Substitute t=11 hours into the integrated function to find the total quantity of water:
Q(11) = 3200(11) + (5/2)(11)^2
Q(11) = 35200 + 3025
Step 4: Add the values to find the total quantity of water in gallons:
Q(11) = 38225 gallons
The quantity of water in the reservoir after 11 hours is 38,225 gallons.

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Each year Wenford Hospital records how long patients wait to be treated in the Accident


and Emergency department.


In 2015 patients waited 11% less time than in 2014.


In 2015 the average time patients waited was 68 minutes.


(a) Work out the average time patients waited in 2014.


Give your answer to the nearest minute.

Answers

The average time patients waited in 2014 was approximately 76 minutes, calculated by dividing the 2015 waiting time by 0.89 as patients waited 11% less time in 2015.

Let's call the average time patients waited in 2014 as per Wenford Hospital records "x" (in minutes). According to the problem statement, patients waited 11% less time in 2015 compared to 2014, so,

0.89x = 68

Solving for x,

x = 68 / 0.89

x ≈ 76.4

Therefore, the average time patients waited in 2014 was approximately 76 minutes (rounded to the nearest minute).

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A shoe store donated a percent of every sale to charity. The total sales were ​$7,200 so the store donated ​$144. What percent of ​$7,200 was donated to charity​?

Answers

The percentage of $7,200 that was donated to charity would be = 2%

How to calculate the percentage of the total sales that was donated?

To calculate the percentage of the total sales that was donated, the following should be carried out.

The total sales at the shoe store = $7,200

The amount of money that was donated = $144

Therefore to calculate the percentage the following is done ;

= 144/7200 × 100/1

= 14400/7200

= 2%

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Quinn is a budding fashion designer known for incorporating geometry into her creations. Her newest design is a simple black blouse patterned with same-size right triangles in different funky colors. The longer leg of each right triangle will be twice as long as the shorter leg, and the hypotenuse of each triangle will be 6 inches long. To the nearest tenth of an inch, what will be the length of the shorter leg of each triangle?

Answers

To the nearest tenth of an inch, the length of the shorter leg of each right triangle will be 2.7 inches.

What is the triangle?

A triangle is a polygon with three sides and three angles. The sum of the three angles in a triangle always adds up to 180 degrees. There are many different types of triangles, including equilateral triangles (where all three sides are equal in length and all three angles are 60 degrees), isosceles triangles (where two sides are equal in length and two angles are equal in measure), and scalene triangles (where no sides are equal in length and no angles are equal in measure).

According to the given information

Let x be the length of the shorter leg of each right triangle. Then, the longer leg will be twice as long, so its length will be 2x. Using the Pythagorean theorem, we can write:

x² + (2x)² = 6²

Simplifying and solving for x, we get:

x² + 4x² = 36

5x² = 36

x² = 7.2

x ≈ 2.7

Therefore, to the nearest tenth of an inch, the length of the shorter leg of each right triangle will be 2.7 inches.

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Find the critical point and determine if the function is increasing or decreasing on the given intervals. y = x2 - 4x?, x>0 (Use decimal notation. Give your answer to three decimal places.) critical point c= _____

Answers

The critical point is c = 2, the function is decreasing on the interval 0 < x < 2, and increasing on the interval x > 2.

To find the critical point of the function y = x^2 - 4x, we first need to find its derivative, which represents the slope of the tangent line at any point on the curve.

The derivative of y with respect to x is:

y' = 2x - 4

Now, we need to find the critical points, which occur where the derivative is zero or undefined. In this case, the derivative is a polynomial, so it is never undefined. To find where it equals zero, we set y' equal to zero:

0 = 2x - 4

Solving for x, we get:

x = 4/2 = 2

So, the critical point is c = 2.

Now, we need to determine if the function is increasing or decreasing on the interval x > 0. To do this, we can analyze the sign of the derivative. If y' > 0, the function is increasing; if y' < 0, the function is decreasing.

For x > 2 (to the right of the critical point), the derivative y' = 2x - 4 is positive (since 2x > 4 when x > 2). Therefore, the function is increasing on the interval x > 2.

For x < 2 (to the left of the critical point), the derivative y' = 2x - 4 is negative (since 2x < 4 when x < 2). Therefore, the function is decreasing on the interval 0 < x < 2.

In summary, the critical point is c = 2, the function is decreasing on the interval 0 < x < 2, and increasing on the interval x > 2.

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Graph the points (–2.5,–3), (2.5,–4), and (5,0.5) on the coordinate plane.

Answers

The points are graphed on a coordinate plane and attached

What is a coordinate plane

A coordinate plane, also known as a Cartesian plane, is a two-dimensional plane with two perpendicular lines that intersect at a point called the origin.

The horizontal line is called the x-axis and the vertical line is called the y-axis. The axes divide the plane into four quadrants.

Each point on the plane can be uniquely identified by a pair of coordinates (x, y), where x is the horizontal distance from the origin along the x-axis and y is the vertical distance from the origin along the y-axis.

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