4: The radius of a cylinder is 3x-2 cm. The height of the cylinder is x + 3 cm. What is the
surface area of the cylinder? Use the formula A = 2²²² +2arh.
02 (3x²+10x-8)
O 27(12x² +7x-2)
O27(12x² - 2x+13)
O 27 (12x²-5x-2)

Answer: r=89.1

Step-by-step explanation: It has been given that,

PQ=PR

So, it is an isosceles triangle, hence ∠Q=∠R. let it be x

Now, we know that the sum of the angles of a triangle = is 180

∘

.

So,

∠P+∠Q+∠R=180

38.2+52.7+x=180

90.9+x=180

taking 90.9 in RHS it becomes -, so

x=180-90.9

x=89.1

The revenue for Jessicas Cafe in 2017 was 1.193 times larger than the revenue in 2016. 2. The revenue for Jessicas Cafe in 2017 represented 119.3% of the revenue in 2016.

A factor is a number that represents how two quantities are related to one another. It is frequently used to indicate how much one amount exceeds or falls short of another. For instance, if a business's revenue. On the other hand, a percentage is a technique to represent a portion or ratio of something as a fraction of 100. For instance, if a company made money.

The given revenue for the two years is $138200 and $164900.

The factor of the two revenue is:

factor = 164900 / 138200 = 1.193

Hence, the revenue for Jessicas Cafe in 2017 was 1.193 times larger than the revenue in 2016.

percentage = (164900 / 138200) * 100% = 119.3%

Therefore, the revenue for Jessicas Cafe in 2017 represented 119.3% of the revenue in 2016.

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Answer: 27 hours

Step-by-step explanation:

The E-cοli grοwth rate οf 26% per hοur. At the end οf the experiment there are 7693 E-cοli bacteria. The experiment was dοne last tο 27 hοurs.

Grοwth rates are the percentage changes in a given measure οver a given span οf time. Depending οn whether the size οf the variable is grοwing οr declining οver time, grοwth rates can be either pοsitive οr negative.

Grοwth rates have been used tο study ecοnοmic activity, business management, and financial yields since they were first used by biοlοgists tο study pοpulatiοn sizes.

Using the fοrmula mentiοned belοw-

[tex]A = P(1 + r) \wedge t[/tex]

Grοwth rate (r)= 26%= 26/100= 0.26

Initial vοlume (P)= 15

Final vοlume [tex](A)= 76937693= 15(1+0.26)^t[/tex]

Or, [tex](1.26)^t= 7693/15[/tex]

Or, t ln(1.26)= ln(7693/15)

Or, t≅27

Hence the experiment was dοne at 27 hοurs.

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We can long divide (24x^3 - 2x^2 - 8x + 30) by (x - 2) as follows:

            24x^2  +  46x  +  86

         _______________________

x - 2   |   24x^3  -  2x^2  - 8x  + 30

        -(24x^3  - 48x^2)

        _______________

                 46x^2 - 8x

                 46x^2 - 92x

                 ___________

                           84x + 30

                           84x - 168

                           ________

                               198

Therefore, (24x^3 - 2x^2 - 8x + 30) ÷ (x - 2) = 24x^2 + 46x + 86 with a remainder of 198/(x - 2).

Answer:

the quotient is 24x² + 46x + 86 and the remainder is 198. Thus, we can write:

(24x³ - 2x² - 8x + 30) ÷ (x - 2) = 24x² + 46x + 86 + 198/(x - 2)

Step-by-step explanation:

We can perform polynomial long division to divide (24x³ - 2x² - 8x + 30) by (x - 2).

24x² + 46x + 86

----------------------

x - 2 | 24x³ - 2x² - 8x + 30

- (24x³ - 48x²)

------------------

46x² - 8x

- (46x² - 92x)

--------------

84x + 30

- (84x - 168)

--------------

198

Therefore, the quotient is 24x² + 46x + 86 and the remainder is 198. Thus, we can write:

(24x³ - 2x² - 8x + 30) ÷ (x - 2) = 24x² + 46x + 86 + 198/(x - 2)

From the list of options, the expression that is correctly evaluated is: (a.) 6² = 36

The expression that is correctly evaluated is:

a.) 6² = 36

This is because 6² means 6 raised to the power of 2, which is the same as 6 multiplied by itself. So, 6² equals 6 times 6, which is 36.

For other expressions, we have

b.) 12¹ means 12 raised to the power of 1, which is simply 12. Therefore, 12¹ equals 12, not 0.

c.) 3^4 means 3 raised to the power of 4, which is 81, not 12.

d.) 10⁰ means 10 raised to the power of 0, which is always equal to 1, not 10.

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Answer:

Here are the angles in each quadrant with a common reference angle of 165°:

First quadrant: angle is 15° (subtract 165° from 180°)

Second quadrant: angle is 195° (subtract 165° from 180° and add the result to 180°)

Third quadrant: angle is 195° (subtract 165° from 180° and then subtract the result from 180°)

Fourth quadrant: angle is 195° (subtract 165° from 360°)

Answer:

150.00

Step-by-step explanation:

a = 1/2bh

a = 1/2(2)(10)

a = 10 [tex]m^{2}[/tex]

10x15 = 150

Helping in the name of Jesus.

now, we could use the compound interest equation using a compounding period of 365 for a year with 365 days, so a daily compounding, OR we can just use the continuously compounding equation, which is equivalent.

[tex]~~~~~~ \textit{Continuously Compounding Interest Earned Amount} \\\\ A=Pe^{rt}\qquad \begin{cases} A=\textit{accumulated amount}\dotfill & \$ 5000\\ P=\textit{original amount deposited}\dotfill & \$1000\\ r=rate\to 2\%\to \frac{2}{100}\dotfill &0.02\\ t=years \end{cases} \\\\\\ 5000 = 1000e^{0.02\cdot t} \implies \cfrac{5000}{1000}=e^{0.02t}\implies 5=e^{0.02t} \\\\\\ \log_e(5)=\log_e(e^{0.02t})\implies \log_e(5)=0.02t\implies \ln(5)=0.02t \\\\\\ \cfrac{\ln(5)}{0.02}=t\implies \boxed{80\approx t}[/tex]

Answer:

-349

Step-by-step explanation:

1)[-6-22]+[-321]

2)(-28)-321

3)-349

the answer is in the attachment below:

Answer:

Step-by-step explanation:

1) -2

2) 0

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The cost of the fence for a rectangular field of 1,500 square yards will be 150k√50 dollars.

Let the length of the rectangular field be L and the width be W. Since the area of the field is 1,500 square yards, we have:

L × W = 1,500

P = 2L + W

C = kP + (1/2)k(L/2)

C = (2k)L + (k/2)W

W = 1500/L

Substituting this into the expression for C, we get:

C = (2k)L + (k/2)(1500/L)

dC/dL = 2k - (k/2)(1500/[tex]L^2[/tex]) = 0

Solving for L, we get:

L = 30√50 yards

Substituting this back into the equation for W, we get:

W = 50/√50 yards

Therefore, the dimensions of the rectangular field that minimize the cost of the fence are L = 30√50 yards and W = 50/√50 yards.

P = 2L + W = 60√50 + 50/√50 yards

C = (2k)L + (k/2)(1500/L) = 90k√50 dollars

k/2 = k/2

Substituting this into the expression for C, we get:

C = 150k√50 dollars

Therefore, to minimize the cost of the fence, the rancher should build a rectangular field with dimensions of L = 30√50 yards and W = 50/√50 yards, and the total cost of the fence will be 150k√50 dollars.

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Answer:

B

Step-by-step explanation:

[tex]x^{2} +7x+49[/tex] is a prime equation.

The coordinate of point B' is (8, 3) after reflecting point B (8, -3) over the x-axis.

A reflection is an involution: when applied twice in succession, every point returns to its original location, and every geometrical object is restored to its original state.

When a point is reflected over the x-axis, its y-coordinate changes sign while its x-coordinate remains the same.

Therefore, to find the coordinates of point B' after reflecting point B over the x-axis, we simply need to change the sign of the y-coordinate of point B.

Starting with point B at (8, -3), reflecting over the x-axis changes the sign of the y-coordinate, so the new point B' is at:

B' = (8, 3)

Therefore, the coordinate of point B' is (8, 3) after reflecting point B (8, -3) over the x-axis.

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Answer:

e. 22 years

Step-by-step explanation:

The ball will reach its maximum height after 3.5 seconds.

What is projectile motion?

Projectile motion is the motion of an object that is launched into the air and then moves along a curved path under the influence of gravity.

In projectile motion, the object follows a parabolic trajectory, which is a curve described by a quadratic function. The path of the object depends on the initial velocity, angle of projection, and acceleration due to gravity.

The key characteristics of projectile motion are that the object moves in two dimensions, typically horizontally and vertically, and that the motion in each dimension is independent of the other. This means that the horizontal and vertical components of motion can be analyzed separately.

The height function of the ball thrown The key characteristics of projectile motion are that the object moves in two dimensions, typically horizontally and vertically, and that the motion in each dimension is independent of the other. This means that the horizontal and vertical components of motion can be analyzed separately. is given by h(t) = 112t - 16t^2, where t is the time in seconds and h(t) is the height of the ball at time t.

To find the maximum height, we need to find the vertex of the parabolic function h(t). The vertex of a parabola given by the equation y = ax^2 + bx + c is located at x = -b/2a.

In the case of our height function h(t) = -16t^2 + 112t, the coefficient of the squared term is -16, and the coefficient of the linear term is 112. Therefore, the time at which the ball reaches its maximum height is given by:

t = -b/2a = -112/(2*(-16)) = 3.5

So, the ball will reach its maximum height after 3.5 seconds.

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Answer:

Step-by-step explanation:

To make x the subject of y = ax^2 + b, we can use the following steps:

1.Subtract b from both sides to isolate the term with x^2:

y - b = ax^2

2.Divide both sides by a to isolate x^2:

(y - b) / a = x^2

3.Take the square root of both sides to solve for x:

x = ± sqrt((y - b) / a))

Therefore, the expression for x as a subject of y = ax^2 + b is:

x = ± sqrt((y - b) / a))

If x is multiplied by 5 and then 3 is subtracted, then the function is f(x)=5x-3.  the inverse function of f(x) = 5x - 3 is f^(-1)(x) = (x + 3)/5.

To find the inverse function of f(x) = 5x - 3, we need to follow these steps:

Step 1: Replace f(x) with y:

y = 5x - 3

Step 2: Solve for x in terms of y:

y = 5x - 3

y + 3 = 5x

x = (y + 3)/5

Step 3: Replace x with f^(-1)(x) and y with x:

f^(-1)(x) = (x + 3)/5

Step 4: Check if the inverse function is valid by verifying if f(f^(-1)(x)) = x and f^(-1)(f(x)) = x:

f(f^(-1)(x)) = f((x+3)/5) = 5((x+3)/5) - 3 = x + 2

f^(-1)(f(x)) = f^(-1)(5x - 3) = (5x - 3 + 3)/5 = x/5

Since f(f^(-1)(x)) = x + 2 and f^(-1)(f(x)) = x/5, the inverse function is valid.

Therefore, the inverse function of f(x) = 5x - 3 is f^(-1)(x) = (x + 3)/5.

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The complete question is:

if x is multiplied by 5 and then 3 is subtracted, then the function is f(x)=5x-3.

What are the step to find the inverse to this function?

Rounding to the nearest 50 dollars, we get:

value = $12,550.

The annual rate of change refers to the percentage change in a quantity over a period of one year. It is commonly used to express the growth or decline of economic indicators, such as GDP, inflation, or employment, as well as the performance of financial assets, such as stocks or bonds. To calculate the annual rate of change, you need to take the difference between the initial and final values of the quantity, divide it by the initial value, and multiply the result by 100 to express it as a percentage. For example, if a company's revenue was $1 million in 2021 and $1.2 million in 2022, the annual rate of change in revenue would be (1.2-1)/1 * 100 = 20%.

A) The car depreciated from $44,000 in 1992 to $15,000 in 2006, a period of 14 years.

The annual rate of change can be found using the formula:

[tex]r = (V2/V1)^{(1/n)} - 1[/tex]

where V1 is the initial value, V2 is the final value, and n is the number of years.

Substituting the given values, we get:

[tex]r = ($15,000/$44,000)^{(1/14)} - 1[/tex]

[tex]r = 0.0576[/tex]

So, the annual rate of change (or depreciation) is 0.0576.

B) To express this rate as a percentage, we can multiply it by 100 and add a percent sign:

[tex]r = 0.0576 x 100%[/tex]

[tex]r = 5.76%[/tex]

So, the car depreciated at an annual rate of 5.76%.

C) If we assume that the car value continues to drop by the same percentage, we can use the formula for exponential decay:

[tex]V = V0*(1-r)^t[/tex]

where V0 is the initial value, r is the rate of change, and t is the time elapsed.

Substituting the given values, we get:

[tex]V = $15,000*(1-0.0576)^3[/tex]

[tex]V = $12,527.31[/tex]

Rounding to the nearest 50 dollars, we get:

[tex]value=12,550[/tex]

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Answer:

So the composite function that gives the area of a circle in terms of time is:

A(r(t)) = π(0.25+2t+4t²)

The solution of x using the graphing tool for the expression [tex]-3^{-x} -6 = -3^{x} + 10[/tex] is found as: x = 2.5.

A line represents the graph of a linear equation. The equation has a solution at each point along the line. We shall plot two lines for a set of two equations.

The given expression is-

[tex]-3^{-x} -6 = -3^{x} + 10[/tex]

The graph of the equation for this expression if plotted using graphing tool.

From the graph, the solution of x is found as: x = 2.5.

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About the equation [tex]7 * 3 = 21[/tex], the generalization we can make is that dividing a whole number by a unit fraction is the same as multiplying a whole number by the denominator of the unit fraction.

We use generalizations to describe the pattern they see in the relationship of a specific group of numbers. It's a pattern that holds true every time.

In mathematics, generalization can be defined as a statement that is true for an entire class of objects, the process by which we obtain a general statement, or the method by which knowledge is transferred from one setting to another.

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Answer:

20/81

Step-by-step explanation:

The total number of brownies is 2 + 2 + 5 = 9. The probability of Gavin taking a brownie with nuts on the first pick is 5/9. After putting it back, the total number of brownies is still 9, but the number of brownies with nuts is now 4. Therefore, the probability of Gavin taking a brownie without nuts on the second pick is 4/9. The probability of both events happening together is the product of the individual probabilities: (5/9) x (4/9) = 20/81. Therefore, the probability that Gavin will randomly take a brownie with nuts, put it back, and grab one without nuts is 20/81.

Answer:

if you add the whole amount, then 2+2+5 is 9. then divide by 4 (the number without nuts) 4/9 is 44 percent

Step-by-step explanation:

Hence, they are different because they drawn from the different scales values.

Data in math is a collection of facts and figures that can be in any form—numerical or non-numerical.

Numerical data is the one you can calculate, and it is always collected in number form, such as scores of students in class, wages of workers in an organization or height of players on a football team, etc.

As per the given graphs they are different because they drawn with the help of different scales.

Hence, they are different because they drawn from the different scales values.

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In light of this, the cylinder's total surface area falls between approximately 1017.9 cm²and 1357.2 cm².

A cylinder's total surface area is equal to the sum of all of its faces' surface areas. The cylinder's total surface area—the sum of its curved and circular areas—has a radius of "r" and a height of "h." The entire surface area of the cylinder is calculated as follows:

Total Surface Area of Cylinder = 2r (h + r) square units.

The three-dimensional shape of a cylinder is made up of two parallel circular bases connected by a curved surface. It is seen as a prism since its base is a circular. It is frequently used as a container and can either be solid or hollow 13.

The following formula can be used to get a cylinder's total surface area:

A = 2πr² + 2πrh

where r is the cylinder's base's radius, h is the cylinder's height, and is a mathematical constant roughly equal to 3.14159.

Yet, we can locate a variety of potential surface areas using the provided information. With the assumption that the radius is equal to the feedback's half (9 cm), we can

after which, we can determine the surface area as follows:

A = 2π(9)² + 2π(9)(18) (18)

A=  2π(81) + 2π(2916)

A ≈ 1017.9 cm²

The surface area can be calculated as follows if we assume that the radius is equal to two-thirds of the feedback (i.e., r = 12 cm):

A = 2π(12)² + 2π(12)(18) (18)

A ≈ 1357.2 cm²

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Answer:

a. To find the perimeter of the first figure, we need to add up the lengths of all four sides. If the sides are equal, we can simply multiply the length of one side by 4. Therefore, the perimeter of a square with sides of 21 cm is:

Perimeter = 4 x side

Perimeter = 4 x 21 cm

Perimeter = 84 cm

b. To find the perimeter of the second figure, we need to add up the lengths of all three sides. Since all three sides are equal, we can simply multiply the length of one side by 3. Therefore, the perimeter of an equilateral triangle with sides of 35 cm is:

Perimeter = 3 x side

Perimeter = 3 x 35 cm

Perimeter = 105 cm

c. To find the perimeter of the third figure, we need to add up the lengths of all four sides. Therefore, the perimeter of a rectangle with sides of 6.75 cm and 2.25 cm is:

Perimeter = 2 x (length + width)

Perimeter = 2 x (6.75 cm + 2.25 cm)

Perimeter = 2 x 9 cm

Perimeter = 18 cm

Step-by-step explanation:

a. To find the perimeter of the first figure (a square with sides of 21 cm), we need to add up the lengths of all four sides. Since all four sides are equal, we can simply multiply the length of one side by 4. Therefore:

Perimeter = 4 x side

Perimeter = 4 x 21 cm

Perimeter = 84 cm

So the perimeter of the square is 84 cm.

b. To find the perimeter of the second figure (an equilateral triangle with sides of 35 cm), we need to add up the lengths of all three sides. Since all three sides are equal, we can simply multiply the length of one side by 3. Therefore:

Perimeter = 3 x side

Perimeter = 3 x 35 cm

Perimeter = 105 cm

So the perimeter of the equilateral triangle is 105 cm.

c. To find the perimeter of the third figure (a rectangle with sides of 6.75 cm and 2.25 cm), we need to add up the lengths of all four sides. Therefore:

Perimeter = 2 x (length + width)

Perimeter = 2 x (6.75 cm + 2.25 cm)

Perimeter = 2 x 9 cm

Perimeter = 18 cm

So the perimeter of the rectangle is 18 cm.

Answer:

1) 2160000000

2) 3.24 * 10^14

Step-by-step explanation:

30*8000(5-)1800

240000 * 5 * 1800

1200000 * 1800

2160000000

1500(800-)15000*18000

1200000 * 15000 * 18000

18000000000 * 18000

3.24 * 10^14

Lyla pays  $ 24.14 in total.

What is the total amount?

To add two or more numbers and determine the final total, use the sum. A series of any form of numbers, known as addends or summands, is added; the outcome is their sum or total.

Here, we have

Given: Lyla goes out to dinner with her friends where the subtotal is $23.89. A 7% tax and 18% tip are added to the subtotal.

we have to find out how much did she pay in total.

= $23.89 + 7% + 18%

= $23.89 + 7/100 + 18/100

= $23.89 + 0.07 + 0.18

= $ 24.14

Hence, Lyla pays  $ 24.14 in total.

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Answer:

What is the question?

Step-by-step explanation:

N/A