50 pts. Compute the requested operating costs as indicated, based on the preceding table and the following information.


Car: six-cylinder compact

Year driven: second

Miles driven: 14,000


The insurance cost for second year is $

.


If the answer is right, (I will check it,) then I will post a question and give you more points. just get on my prophile, and keep reloading on my "questions' page. 100 extra points.


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Answer:

41.93 degrees

Step-by-step explanation:

The length of the fence around the enclosure not including the gates is:2l + 2w + 8 m

To find the length of the fence around the enclosure, we need to first find the perimeter of the rectangle and then subtract the combined length of the two gates from it.

Let's assume the length of the rectangle is 'l' and the width is 'w'.

From the given data, we know that each gate is 4 m wide.

Therefore, the width of the rectangle is:

Width = w + (4 m + 4 m) = w + 8 m

The perimeter of the rectangle is:

P = 2l + 2(w + 8 m) = 2l + 2w + 16 m

Now, we need to subtract the combined length of the two gates from the perimeter:

P - 2 × 4 m = 2l + 2w + 16 m - 8 m = 2l + 2w + 8 m

So, the length of the fence around the enclosure not including the gates is:2l + 2w + 8 m

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Sample standard deviation = 51.03

Sample variance = 2604.33

Mean (average):

[tex]= (107.5 + 108.2 + 133.6 + 151.4 + 155.8 + 149 + 106.11 + 16.1 + 181 + 165.7 + 130.6 + 126.5 + 109.5 + 139.6 + 139.4 + 140.8 + 143.2 + 132.7 + 171 + 115.7) / 20\\= 1894.28 / 20\\= 94.714[/tex]

Squared differences from the mean:

[tex](107.5 - 94.714)^2 = 161.39\\(108.2 - 94.714)^2 = 182.14\\(133.6 - 94.714)^2 = 1507.99\\(151.4 - 94.714)^2 = 3217.15\\(155.8 - 94.714)^2 = 3750.18\\(149 - 94.714)^2 = 2922.18\\[/tex]

[tex](106.11 - 94.714)^2 = 130.46\\(16.1 - 94.714)^2 = 6659.49\\(181 - 94.714)^2 = 7334.04\\(165.7 - 94.714)^2 = 5041.45\\\\(130.6 - 94.714)^2 = 1281.47\\(126.5 - 94.714)^2 = 1007.35\\(109.5 - 94.714)^2 = 217.75\\(139.6 - 94.714)^2 = 1997.15\\(139.4 - 94.714)^2 = 1990.18\\(140.8 - 94.714)^2 = 2108.42\\(143.2 - 94.714)^2 = 2353.86\\(132.7 - 94.714)^2 = 1425.68\\(171 - 94.714)^2 = 5852.45\\(115.7 - 94.714)^2 = 441.51[/tex]

Sum of squared differences:

= 161.39 + 182.14 + 1507.99 + 3217.15 + 3750.18 + 2922.18 + 130.46 + 6659.49 + 7334.04 + 5041.45 + 1281.47 + 1007.35 + 217.75 + 1997.15 + 1990.18 + 2108.42 + 2353.86 + 1425.68 + 5852.45 + 441.51

= 49482.29.

Sample variance:

s^2 = Sum / (n-1)

= 49482.29 / (20-1)

= 2604.33105263

= 2604.33

Sample standard deviation:

s = sqrt(s^2)

s = sqrt(2604.33)

s = 51.0326366162

s = 51.03

Fulls:

An author is doing research on an upcoming book on skyscrapers in America. The author gathers data for 20 skyscrapers throughout America and decides to focus on the height data, given in meters, which are reproduced below.

Height of skyscraper (meters)

107.5

108.2

133.6

151.4

155.8

149

106.1

116.1

181

165.7

130.6

126.5

109.5

139.6

139.4

140.8

143.2

132.7

171

115.7

Calculate the sample standard deviation and the sample variance.

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Answer:

x-intercept(s):  (6,0)

y-intercept(s):  (0,−9)

Step-by-step explanation:

To find the x-intercept, substitute in 0 for y and solve for x. To find the y-intercept, substitute in 0 for x and solve for y.

The number of each type of vehicle the company can buy is:

Commercial van = 100

Small truck = 50

Large truck = l60

Let

Commercial van = v

Small truck = s

Large truck = l

v = 2s

v + s + l = 310

35000v + 70,000s + 50,000l = 15,000,000

2s + s + l = 310

35000(2s) + 70,000s + 50,000l = 15,000,000

3s + l = 310

140,000s + 50,000l = 15,000,000

Divide by 10,000

3s + l = 310

14s + 5l = 1500

Multiply (1) by 5

15s + 5l = 1550

14s + 5l = 1500

subtract

s = 50

Recall,

v = 2s

v = 2(50)

v = 100

Therefore,

v + s + l = 310

100 + 50 + l = 310

150 + l = 310

l = 310 - 150

l = 160

Hence, the company can buy 100 commercial vehicle, 50 small truck and 160 large truck.

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The equation of the line of best-fit for this scatterplot is

y = (81/2)x - (160,069/2)

The correct answer is D.

To find the equation of the line of best fit for the scatterplot, we need to calculate the slope and y-intercept based on the given data points (2009, 1,330) and (2013, 1,492).

First, we calculate the slope (m) using the formula:

[tex]m= \frac{(y2 - y1)}{(x2 - x1)}[/tex]

Using the points (2009, 1,330) and (2013, 1,492):

[tex]m=\frac{(1492 - 1330)}{(2013 - 2009)}[/tex]

[tex]m = \frac{162 }{4}[/tex]

[tex]m=\frac{81}{2}[/tex]

Next, we determine the y-intercept (b) by substituting one of the points and the calculated slope into the equation

[tex]y = mx + b[/tex].

Let's use the point (2009, 1330):

[tex]1330 = (\frac{81}{2} )\times2009 + b[/tex]

To find b, we can rearrange the equation:

[tex]b = 1330 - (\frac{81}{2} )\times2009[/tex]

[tex]b = 1330 - \frac{163,089}{2}[/tex]

[tex]b = 1330 - 81,544.5[/tex]

[tex]b = -80,214.5[/tex]

Therefore, the equation of the line of best fit is:

[tex]y =(\frac{81}{2} )\times x-80,214.5[/tex]

Simplifying the equation further:

[tex]y= (\frac{81}{2} ) x - 40,107.25[/tex]

The closest option to this equation is:

[tex]y=(\frac{81}{2} )x-(\frac{160,069}{2} )[/tex]

So, the correct answer is:

[tex]y = (\frac{81}{2} )x-(\frac{160,069}{2} )[/tex]

The correct answer is D.

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The GPA of a student who studies for 15 hours a week is 3.125 GPA.

In Mathematics, the standard form of the equation of a regression line is represented or modeled by the following mathematical expression;

y = bx + c

Where:

Since the student would study for 15 hours a week, the predicted GPA can be calculated as follows;

y = 0.149x + 0.89

y = 0.149(15) + 0.89

y = 3.125 GPA.

In conclusion, we can logically deduce that a student who studies for 15 hours a week would most likely have a 3.125 GPA.

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Complete Question:

Using your equation from step 2d, estimate the GPA of a student who studies for 15 hours a week. Justify your answer. The equation for the predicted GPA is y=0.149x+0.89

The conclusion in the conditional statement "If a shape is a quadrilateral, then it has exactly four sides" is "it has exactly four sides." Option  C

From the information given, we have that the statement is;

"If a shape is a quadrilateral, then it is has exactly four sides."

The antecedent (if a shape is a quadrilateral) and the consequent (then it has exactly four sides) of the statement are in a conditional connection.

The precise assertion or claim based on this conditional relationship is the conclusion.

In this instance, the conclusion argues that a shape must logically have four sides in order to qualify as a quadrilateral.

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The complete question:

Identify the conclusion in the conditional statement below.

"If a shape is a quadrilateral, then it is has exactly four sides."

A."If it is a quadrilateral, it has four sides"

B."a shape is quadrilateral"

C. "It has exactly four sides"

The distance that can be traveled with $20 is equal to or less than 6 km.

Given that the total amount available is $20. Hence, the amount spent on the ride will be equal to or less than $20.

Base fare= $5

Rate per km = $2.5

Expressing the above case in the form of inequality:

  Base fare + (Rate per km x Distance) ≤ Total amount available

  $5 + $2.5d ≤ $20

⇒$2.5d ≤ $15

⇒ d ≤ 6 km where d represents the distance traveled.

Hence the distance that can be traveled with $20 is equal to or less than 6 km.

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The standard deviation of the probability distribution is approximately 13703.91.

To calculate the standard deviation of a probability distribution, we need to follow these steps:

Calculate the expected value (mean) of the probability distribution. This is done by multiplying each value (x) by its corresponding probability (p(x)) and summing them up.

Expected value (mean) = (10 * 27) + (20 * 28) + (30 * 45) = 270 + 560 + 1350 = 2180.

Calculate the squared deviation for each value. This is done by subtracting the expected value from each value, squaring the result, and then multiplying by the corresponding probability.

Squared deviation for 10: (10 - 2180)^2 * 27 = 212080 * 27 = 5726160.

Squared deviation for 20: (20 - 2180)^2 * 28 = 1998800 * 28 = 55982400.

Squared deviation for 30: (30 - 2180)^2 * 45 = 2815200 * 45 = 126684000.

Calculate the variance of the probability distribution. This is done by summing up the squared deviations.

Variance = (5726160 + 55982400 + 126684000) = 187692560.

Calculate the standard deviation by taking the square root of the variance.

Standard deviation = sqrt(187692560) ≈ 13703.91.

As a result, the probability distribution's standard deviation is around 13703.91.

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The domain of the function graphed in this problem is given as follows:

C. {x | x  ≠ -2, 3}.

The function is this problem is defined for all real values except x = -2 and x = 3, hence the domain is given as follows:

C. {x | x  ≠ -2, 3}.

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Mean ≈ 0.874

Median ≈ 0.877

Maximum = 0.933

Minimum = 0.83

Mode = None

To find the mean, median, maximum, minimum, and mode of the given numbers:

Mean: The mean is the average of a set of numbers.

To calculate the mean, add up all the numbers and divide the sum by the total count.

Mean = (0.834 + 0.861 + 0.927 + 0.877 + 0.831 + 0.925 + 0.912 + 0.83 + 0.849 + 0.933 + 0.884) / 11

Mean ≈ 0.874

Median: The median is the middle value when the numbers are arranged in ascending or descending order.

Since there are 11 numbers, the median would be the 6th number when arranged in order.

Arranging the numbers in ascending order:

0.83, 0.831, 0.834, 0.849, 0.861, 0.877, 0.884, 0.912, 0.925, 0.927, 0.933

Median ≈ 0.877

Maximum: The maximum is the largest value among the given numbers.

Maximum = 0.933

Minimum: The minimum is the smallest value among the given numbers.

Minimum = 0.83

Mode: The mode is the value(s) that appear most frequently in the given numbers.

If there is no value that appears more than once, there is no mode.

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After 8 hours, the hire costs will be the same for Connie and her friends from Ace and David and his brother from Best.

To find the number of hours when the hire costs will be the same for Connie and her friends from Ace and David and his brother from Best, we need to set up an equation.

Let x represent the number of hours.

For Ace Bicycle Shop, the cost is given by C_Ace[tex](x) = 4 + 1x[/tex], where 4 is the flat fee and 1x represents the hourly charge.

For Best Bicycle Shop, the cost is given by C_Best[tex](x) = 8 + 0.5x[/tex], where 8 is the flat fee and 0.5x represents the hourly charge.

To find the number of hours when the costs are the same, we equate the two equations:

[tex]4 + 1x = 8 + 0.5x[/tex]

Subtracting 0.5x from both sides, we get:

[tex]0.5x = 4[/tex]

Dividing both sides by 0.5, we find:

[tex]x = 8[/tex]

Therefore, after 8 hours, the hire costs will be the same for Connie and her friends from Ace and David and his brother from Best.

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Angle QPS and angle RTS are congruent, both measuring 136°. Additionally, since OQ and RT are parallel, angle PSQ and angle RTS are alternate interior angles and are also congruent.

If OQ and RT are parallel lines and m QPS = 136°, we can use the property that when a transversal intersects two parallel lines, the corresponding angles are congruent.

Therefore, angle QPS and angle RTS are congruent, both measuring 136°. Additionally, since OQ and RT are parallel, angle PSQ and angle RTS are alternate interior angles and are also congruent.

Hence, angle PSQ measures 136° as well. In summary, angles QPS, PSQ, and RTS all have a measure of 136°.

This is because when two lines are parallel and intersected by a transversal, the corresponding angles and alternate interior angles are congruent.

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The complete question is given below:

If OQ and RT are parallel lines and m QPS = 136°

The length of the major axis is: 2√{18 - 6√5}

The foci of an ellipse are usually denoted by the coordinates:

(c, 0) and (-c, 0)

where c is the distance from the center of the ellipse to each focus.

We are given the coordinates of the foci as:

(2, -3 + √5) and (4,-8).

Let us now find the distance between the two foci:

d = √{(2 - 4)² + (-3 + √5 + 8)²}

d = √{4 + (√{5} - 3)² }

d =  √{18 - 6√5}

The ellipse is tangent to the x-axis, and as such the major axis of the ellipse will be parallel to the x-axis. The vertices lie on the x-axis.

The length of the major axis is given by2a,

where a is the distance from the center of the ellipse to either vertex.

The distance between the two vertices is 2a = 2c, which is twice the distance between the center and either focus.

Therefore, the length of the major axis is:

2a = 2d = 2√{18 - 6√5}

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Reason: The two line segments CF and AH point in the same direction, and they never intersect. Therefore, we consider them parallel.

Skew lines are ones that point in different directions. An example of a pair of skew lines would be AB and DE. Skew lines never intersect, but we don't consider them parallel.

The cardinal number of the set is 5.

The cardinal number of the given set A = {13, 19, 25, 31, 39} is 5.

Cardinal number is the number of elements present in a set, so counting the number of elements of the set will give us the cardinal number of the set.

In this case, we have the set A with 5 elements: 13, 19, 25, 31, and 39.

Thus, the cardinal number of the set is 5.

Hence, the answer is 5.

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The fraction of the plot of land not occupied by the flowers is 0.0625 or 1/16.

Let's calculate the fraction of the plot of land that is not occupied by the flowers.

Given that initially, 1/4 of the land is allocated for orchids, we have 1 - 1/4 = 3/4 of the land remaining.

After planting the orchids, 2/3 of the remaining land is allocated for roses. Therefore, the fraction of land allocated for roses is (2/3) * (3/4) = 2/4 = 1/2.

Subtracting the land allocated for roses from the remaining land, we have 3/4 - 1/2 = 1/4 of the land remaining.

Finally, 0.75 of the remaining land is allocated for tulips. Therefore, the fraction of land allocated for tulips is 0.75 * (1/4) = 0.1875.

To find the fraction of the plot of land not occupied by the flowers, we subtract the fractions of land allocated for flowers from 1:

1 - (1/4 + 1/2 + 0.1875) = 1 - 0.9375 = 0.0625.

Therefore, the fraction of the plot of land not occupied by the flowers is 0.0625.

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The function f(x) has five intercepts at -6 only, -2, -1, 1, and 3 only.

The correct answer is D.

The function f(x) has some specific characteristics as shown in the graph.

The graph of f(x) has five intercepts, as can be seen from the graph.

The intercepts of f(x) can be determined by observing where the graph of f(x) crosses the x-axis.

The function f(x) intercepts the x-axis at five different points: -6 only, -2, -1, 1, and 3 only.

At these points, f(x) = 0.
Furthermore, the graph of f(x) is increasing from -∞ to -6, then decreasing from -6 to -2.

The graph of f(x) then increases from -2 to -1, decreases from -1 to 1, increases from 1 to 3, and finally decreases from 3 to +∞.

Hence, we can deduce that the graph of f(x) has a local maximum point at x = -6, a local minimum point at x = -2, and another local minimum point at x = 3.
We can also conclude that f(x) is an odd function, meaning that f(-x) = -f(x).

This can be deduced from the symmetry of the graph about the origin.

Finally, we can see from the graph that the function f(x) is continuous everywhere except at x = -2 and x = 3.

At these points, f(x) is not defined.
The function f(x) has five intercepts at -6 only, -2, -1, 1, and 3 only.

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The resulting triangle after a reflection of triangle NMO over the line x = 2 would be N'(9, 2), M'(6, 1) and O'(7, 3)

An equation is an expression that shows how numbers and variables are related to each other using mathematical operators.

Reflection is a type of transformation that involves the flipping of a point or figure over a line.

Triangle NMO with vertices at N(-5, 2), M(-2, 1) and O(-3, 3) is reflected over the line x = 2

The resulting triangle would be N'(9, 2), M'(6, 1) and O'(7, 3)

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The zeros of the new function are x = -9 and x = -4

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

g(x) = x² + 3x - 4

The transformation rule is given as

Shifted 5 units to the left

So, we have

h(x) = (x + 5)² + 3(x + 5) - 4

Next, we plot the graph of h(x)

See attachment

From the graph, we have the zeros to be

x = -9 and x = -4

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Answer:

w = 120

x = 60

y = 120

z = 60

Step-by-step explanation:

w = 120 (vertically opposite angles)

sum of co interior angles is 180

⇒ w + x = 180 and x + y = 180

w + x = 180

⇒ 120 + x = 180

⇒ x = 180 - 120

⇒  x = 60

x + y = 180

⇒  60 + y = 180

⇒   y = 180 - 60

⇒   y = 120

z = x (corresponding angles)

z = 60

The transformations applied to parallelogram ABCD to create A″B″C″D″ are translations

To determine the set of transformations applied to parallelogram ABCD to create A″B″C″D″, we can compare the coordinates of the corresponding vertices.

Let's analyze the transformation for each vertex:

1. A (−4, 1) to A″ (1, −4):

2. B (−3, 2) to B″ (2, −3):

3. C (−1, 2) to C″ (2, −1):

4. D (−2, 1) to D″ (1, −2):

In summary, the transformations applied to parallelogram ABCD to create A″B″C″D″ are translations. Each vertex is translated horizontally to the right by either 3 or 5 units, and vertically downward by the same amount.

The specific values and directions of these translations determine the new positions of the vertices in the transformed parallelogram.

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Answer and Step-by-step explanation:

To find out how many more yards of red fabric Reuben used, we need to subtract the amount of yellow fabric from the amount of red fabric. Since the two fractions have different denominators, we need to find a common denominator before subtracting them. The least common multiple of 8 and 4 is 8, so we can rewrite both fractions with a denominator of 8:

7/8 - 1/4 = 7/8 - (1/4) * (2/2) = 7/8 - 2/8 = (7 - 2)/8 = 5/8

So, Reuben used 5/8 yards more red fabric than yellow fabric.

In a dilation, the size of the object can be changed while keeping its shape, which is the case in this scenario.

A transformation of rectangle ABCD results in rectangle A’B’C’D. We need to identify which transformation maps the pre-image to the image.Two-dimensional transformations can be classified into four main categories; translations, reflections, rotations, and dilations. We will evaluate each of these to determine which of them maps the pre-image to the image.

TranslationsA translation is a transformation that moves an object in a straight line without changing its shape or orientation. It involves moving an object by a fixed distance in a particular direction. The image is congruent to the pre-image. This transformation does not result in a rectangle ABCD being transformed to A’B’C’D.

It results in a rectangle that has the same size and shape as the pre-image being moved to a different location.ReflectionsA reflection is a transformation that flips an object across a line without changing its shape or orientation. A reflection through a line known as the x-axis, or the y-axis results in a mirror image of the object.

This transformation does not result in a rectangle ABCD being transformed to A’B’C’D.RotationsA rotation is a transformation that turns an object about a fixed point. The fixed point is known as the center of rotation. The angle through which the object is rotated is known as the angle of rotation. A rotation does not change the size or shape of an object, but it changes its orientation. This transformation does not result in a rectangle ABCD being transformed to A’B’C’D.

DilationsA dilation is a transformation that changes the size of an object. The size change is described by a scale factor. The scale factor is greater than 1 for an enlargement and between 0 and 1 for a reduction. The center of dilation is the point about which the object is enlarged or reduced. This transformation does not result in a rectangle ABCD being transformed to A’B’C’D.After evaluating each of the four types of transformations, we can conclude that the transformation that maps the pre-image rectangle ABCD to the image rectangle A’B’C’D is a dilation.

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The equation of an ellipse is  $80x^2 + 160x + 591 = 0$. with a slope of $2

In the given equation $9x^2 + 16y^2 = 144$,

The coefficients of $x^2$ and $y^2$ are different, indicating that the ellipse is not a perfect circle.

If the line passing through the points $(0,5)$ and $(1,7)$.We can determine the slope by plugging the points

Slope = (y₂ -y₁)/(x₂-x₁)

Slope = (7-5)/1-0)

Slope = 2/1 = $2

Using the slope intercept form we determine the equation as .

$y = 2x + 5$.

By way of substitution into  the equation of the line into the equation of the ellipse, we have

$9x^2 + 16(2x + 5)^2 = 144$.

Expand to get

$80x^2 + 160x + 591 = 0$.

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A residual plot is a scatterplot in which the residuals (vertical distances between the predicted and actual values) are plotted against the independent variable. A residual is defined as the difference between the predicted value (based on the regression equation) and the actual value.

Residual plots are a valuable tool for checking the adequacy of the model. It helps us check whether the assumptions of linearity, independence, equal variance, and normality are met or not.

The most basic way to create a residual plot is to plot the residuals against the fitted values. If the points in the residual plot are randomly scattered around the horizontal axis, then the assumption of linearity has been met.

If the points show a pattern, such as a curved line, then the assumption of linearity has been violated.To create a residual plot, follow these steps:

Step 1: Estimate the regression equation and obtain the predicted values (ŷ) and residuals (e). ŷ = b0 + b1X

Step 2: Plot the residuals on the vertical axis and the independent variable (X) on the horizontal axis

.Step 3: Look for patterns in the residual plot. If the points are randomly scattered around the horizontal axis, then the assumptions of linearity, independence, equal variance, and normality are met. If there is a pattern, such as a curved line, then the assumptions have been violated. A residual plot can be used to detect outliers, influential observations, and nonlinearity.

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The formula is `V = 1/3 a²h` and you need to solve for A. You can do this by rearranging the formula so that A is on one side of the equation and everything else is on the other side. Here are the steps you can follow to solve for A:

Step 1: Multiply both sides of the equation by 3 to get rid of the fraction: `3V = a²h`.

Step 2: Divide both sides of the equation by h: `3V/h = a²`.

Step 3: Take the square root of both sides of the equation to solve for a: `sqrt(3V/h) = a`.So the solution for `a` is `sqrt(3V/h)`. You can substitute the given value of `V` and `h` into the equation and simplify it if necessary.

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