Ate of exchange between dollar to euro was $ 0.8 to 1 euro calculate the number of euros received in exchange for $ 300

Answers

Answer 1

Answer:

$240

Step-by-step explanation:

Since a CAD is 4/5 of a Euro (just for this question) all we needed to do was to multiply 0.8 by 300.


Related Questions

Mr Yang was a director of the companies, DEF Sdn Bhd, MNO Sdn Bhd and PQR Sdn Bhd, which were wound up for the last 10 years ago. Now he wants to set up his new company under the types of limited by shares to import salted fish. Mr Yang is also an auditor of his wife company, Lovely Sdn Bhd for 3 years. Mr Yang seek for your advice as he need to know his legal position before he wants to open his new company.

Answers

Mr Yang needs to be aware of his legal position before opening his new company, given his history as a director and auditor. He should seek professional advice to ensure that he complies with all the legal requirements and regulations and avoids any potential legal consequences.

It is important for Mr Yang to understand his legal position before opening a new company, given his history as a director of previously wound-up companies and as an auditor of his wife's company. Mr Yang should take into account the Companies Act 2016, which outlines the legal responsibilities and obligations of company directors, as well as the potential consequences of breaching these obligations.
Under the Companies Act 2016, a director has a fiduciary duty to act in the best interests of the company and its shareholders. They are required to exercise due care, skill, and diligence in carrying out their duties, and to avoid conflicts of interest. If a director breaches these obligations, they can be held personally liable for any losses suffered by the company.Given that Mr Yang's previous companies were wound up, it is possible that he may have breached his legal obligations as a director. If this is the case, he could face legal action or be disqualified from acting as a director in the future. Furthermore, as an auditor of his wife's company, Mr Yang should ensure that he is fulfilling his legal responsibilities and carrying out his duties impartially and professionally.In terms of setting up a new company, Mr Yang should ensure that he complies with all the legal requirements and regulations governing the incorporation of a limited by shares company. This includes registering the company with the Companies Commission of Malaysia (SSM), obtaining the necessary licenses and permits, and adhering to the requirements of the Companies Act 2016.

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If we find a 95% confidence interval using a sample, then we can say.


Group of answer choices



A. There is a 5% change the population proportion is NOT on the interval.



B. 95% of our samples will fall on that interval.



C. No answer text provided.



D. 95% of individuals will fall on that interval

Answers

The correct answer is: A. There is a 5% chance the population proportion is NOT on the interval.

When constructing a 95% confidence interval using a sample, we can say that there is a 95% level of confidence that the true population parameter (such as a mean or proportion) falls within the interval. This means that if we were to take many samples and construct confidence intervals for each sample, approximately 95% of those intervals would contain the true population parameter.

However, it is important to note that there is still a small possibility (5% in this case) that the true population parameter does not fall within the calculated interval. This is due to the inherent uncertainty involved in statistical estimation and the fact that we are working with a sample rather than the entire population.

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To indirectly measure the distance across a river, Arun stands on one side of the river and uses sight-lines to a landmark on the opposite bank. Arun draws the diagram below to show the lengths and angles that he measured. Find


PR, the distance across the river. Round your answer to the nearest foot.
P
R
O
C
E

Answers

The distance across the river is approximately 597 feet.

When is the Law of Cosines employed in trigonometry, and what does it mean?

The Law of Cosines is a formula that connects a non-right triangle's sides and angles. When the lengths of two sides and the angle between them, or the lengths of all three sides, are known, it is used to determine the length of a side or measure of an angle.

For the given figure:

Using trigonometry, we can find the length of PR as follows:

tan(43) = QR/PS

PS = QR/tan(43)

tan(68) = QR/RU

RU = QR/tan(68)

Since PS + RU = PR,

PR = QR/tan(43) + QR/tan(68)

Since triangle PQR is a right triangle, we can use the Pythagorean theorem:

QR² = PS² + RU²

Substituting the expressions for PS and RU gives:

QR² = (QR/tan(43))² + (QR/tan(68))²

QR ≈ 325.4 feet

Now we can substitute this value into the expression for PR to get:

PR ≈ 596.7 feet (rounded to the nearest foot)

Therefore, the distance across the river is approximately 597 feet.

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The complete question is:

To indirectly measure the distance across a river, Arun stands on one side of the river and uses sight-lines

find the area of the region that is bounded by the curve r=5sin(θ)−−−−−−√ and lies in the sector 0≤θ≤π

Answers

The area of the region that is bounded by the curve r=5sin(θ) and lies in the sector 0≤θ≤π is 25/2 square units.

To find the area of the region that is bounded by the curve r=5sin(θ) and lies in the sector 0≤θ≤π, we can use the formula for the area of a polar region:

A = 1/2 ∫(b,a) r(θ)² dθ

where a and b are the values of θ that define the region.

In this case, the region is defined by 0 ≤ θ ≤ π and r(θ) = 5\(sin(\theta)^{(1/2)}\), so we have:

A = 1/2 ∫(π,0) [5\(sin(\theta)^{(1/2)}\)]² dθ

Simplifying the integrand:

A = 1/2 ∫(π,0) 25sin(θ) dθ

Using the identity ∫sin(θ)dθ = -cos(θ), we get:

A = 1/2 [-25cos(π) + 25cos(0)] = 25/2

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f(x)=4x-2 Find the interverse

Answers

The inverse of the function f(x) = 4x - 2 is f⁻(x) = 4y - 2.

What is function?

The function is a relationship between a set of potential outputs and a set of possible inputs, where each input has a single relationship with each output. This means that if an object x is present in the set of inputs (also known as the domain), then a function f will map that object to exactly one object f(x) in the set of potential outputs (called the co-domain).

Given:

f(x) = 4x - 2

Find the inverse as shown below,

The inverse of the function can be found by writing y in place of x as shown below,

f⁻(x) = 4y - 2

Thus, the inverse of the function is  4y - 2.

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On the way back home, the Anderson family must stop at the gas station to fill up. What isthe total distance of their trip? Round your final answer to the nearest kilometer

Answers

Answer:

The total distance will remain unchanged as the gas station is on their way to home.

Step-by-step explanation:

The total distance of the trip will the distance between home to the destination and way back. If the Anderson family is stopped to fill gas in their car. The total distance of the trip is not affected by the stop in their route. If the gas station is located far from the route they follow then the distance will change.

On a coordinate plane, two parabolas open up. The solid-line parabola, labeled f of x, goes through (negative 2, 4), has a vertex at (0, 0), and goes through (2, 4). The dashed-line parabola, labeled g of x, goes through (negative 5, 8), has a vertex at (negative 3, 4), and goes through (negative 1, 8).
Which best describes the transformation that occurs from the graph of f(x) = x2 to g(x) = (x + 3)2 + 4?

left 3, up 4
right 3, down 4
left 3, down 4
right 3, up 4

Answers

Answer:

A

Step-by-step explanation:

Edge 2021

Answer:

A. left 3, up 4

Step-by-step explanation:

Doing it on EDG right now!

Good luck to yalls :)

perform the division of monomials
18x⁶y²z⁵/6x³yz²​

Answers

Answer:

3x³yz³

Step-by-step explanation:

18x⁶y²z⁵/6x³yz²​ = 18/6 x⁶⁻³ y²⁻¹ z⁵⁻² = 3x³yz³

A Ferris wheel car moves from point C to point D on the circle shown below:

Circle A is shown with points C and D on the circle and the central angle C A D marked 38 degrees. The diameter is 20 feet.

What is the arc length the car traveled, to the nearest hundredth?

2.18 feet
4.31 feet
5.84 feet
6.63 feet

Answers

The length of the arc travelled by the car is 6.63 feet.

Given,

Circle diameter 20feet .

Now,

Arc length = Ф ×π/180 × r

Ф is central angle of arc.

r is the radius of circle.

Circulating arc length ,

d = 2r

So,

θ = 38 degrees

diameter = 20ft

⇒ radius = 10

Therefore, the arc length the car travelled

= 38 ×π/180×10

= 6.63 feet

Hence, the arc length the car travelled is 6.63feet.

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The number of small air bubbles per 3 feet by 3 feet plastic sheet has a Poisson distribution with a mean number of two per sheet. What percent of these sheets have no air bubbles

Answers

The percentage of the sheets with no air bubbles is given as follows:

13.53%.

What is the Poisson distribution?

In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following mass probability function:

\(P(X = x) = \frac{e^{-\mu}\mu^{x}}{(x)!}\)

The parameters are listed and explained as follows:

x is the number of successes that we want to find the probability of.e = 2.71828 is the Euler number\(\mu\) is the mean in the given interval or range of values of the input parameter.

The mean for this problem is given as follows:

\(\mu = 2\)

The proportion of these sheets with no air bubbles is P(X = 0), hence it is given as follows:

P(X = 0) = e^-2 = 0.1353 = 13.53%.

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An ice cream shop has 5 flavors. Carlos wants to buy a five-scoop cone with 5 different flavors. How many cones could he buy if the order of the flavors is important?
A.30,140 cones
B.240 cones
C.120 cones
D.60 cones
E.26,970 cones
First to answer gets marked brainliest.

Answers

I think the answer is E

HELP AND HURRY UP pleas

HELP AND HURRY UP pleas

Answers

Answer:

The 4th one;

y = -5

Step-by-step explanation:

The line is horizontal, therefore it just needs to be the same as the y-value, which is -5.  Here is an image for you to explain it.

HELP AND HURRY UP pleas

Tony is solving the equation 4x = 12x + 20 for x. Tony uses the multiplicative property of equality to rewrite the equation as x = 3x + 20. Which statement correctly explains whether
A Tony used the property correctly? Tony used the property correctly because he multiplied one term on each side of the equals sign by 1/4
B Tony did not use the property correctly because he should have multiplied both sides of the equals sign by 1/12 not 1/4
C Tony did not use the property correctly because he did not multiply every term on both sides of the equals sign by 1/4
D Tony used the property correctly because he multiplied every term containing x by 1/4​

Answers

Answer:

C)

Step-by-step explanation:

The correct answer is C: Tony did not use the property correctly because he did not multiply every term on both sides of the equals sign by 1/4.

To solve the equation 4x = 12x + 20, Tony used the multiplicative property of equality but made an error in the application. The correct approach would be to multiply every term on both sides of the equals sign by the reciprocal of the coefficient of x, which is 1/4 in this case.

However, Tony only multiplied one term on each side by 1/4, resulting in equation x = 3x + 20. This action is incorrect because it does not apply the property to every term containing x. To solve the equation correctly, Tony should have multiplied both sides by 1/4, resulting in x/4 = (3x + 20)/4.

The Carey family took a trip in November. Mary is calculating the gas mileage in miles per gallon for her dad's truck. When he fills the tank, her dad records the miles on the truck as 15,345. Her dad pays $53.28 to fill up the empty gas tank of the truck. What is the size of the truck's tank in gallons if it cost $3.33 per gallon? Round your answer to the nearest whole number. Be sure to include the correct units in your final answer. *

Answers

Answer:

The size of the tank is 16 gallons

Step-by-step explanation:

Here, we want to calculate the size of the gas tank of the truck

we simply divide the total amount spent by the price per gallon

Mathematically, that will be;

53.28/3.33 = 16 gallons

Find the standard form of the equation of the parabola with the given characteristic(s) and vertex at the origin.
Vertical axis and passes through the point (?3, ?3).

Answers

The standard form of the equation of the parabola with the given characteristic(s) and vertex at the origin is:

\(y=-\frac{1}{3}x^{2}\)

What is the equation of the parabola with a vertex at the origin and a vertical axis, which passes through the point (-3, -3)?

The equation of the parabola in standard form is \(y=-\frac{1}{3}x^{2}\). This equation represents a parabola with a vertex at the origin (0, 0) and a vertical axis. Additionally, it passes through the point (-3, -3), satisfying the given characteristics.

To find the standard form of the equation of a parabola with a vertex at the origin and a vertical axis, we can use the general equation of a parabola:

y=\(a(x-h)^{2}\)+k

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

Since the vertex is at the origin , the equation becomes:

y=a\(x^{2}\)

Now, we need to find the value of 'a' using the given point on the parabola (-3, -3).

These values are satisfied the equation, we have:

\(-3=a(-3)^2\)

Simplifying:

−3=9a

Dividing both sides by 9:

\(a=-\frac{1}{3}\)

Therefore, the standard form of the equation of the parabola with the given characteristic(s) and vertex at the origin is:

\(y=-\frac{1}{3}x^{2}\)

Hence, the equation  in standard form is:\(y=-\frac{1}{3}x^{2}\)  

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the second derivative of a function f is given by f''(x)=x(x-3)^5(x-10)^2

Answers

The second derivative of the function f is expressed as f''(x) = x(x-3)^5(x-10)^2. This information provides insights into the behavior and critical points of the function.

The given expression, f''(x) = x(x-3)^5(x-10)^2, represents the second derivative of a function f with respect to the variable x. The second derivative provides valuable information about the behavior of the function, particularly regarding concavity and inflection points.

The equation indicates that the function has factors of x, (x-3)^5, and (x-10)^2. The term x indicates that the function includes a linear component, while the factors (x-3)^5 and (x-10)^2 suggest that the function may exhibit multiple inflection points and changes in concavity around x = 3 and x = 10.

The expression does not provide information about the original function f(x) or its first derivative f'(x), but it does give valuable insights into the higher-order behavior of the function and can help analyze critical points and concavity characteristics when combined with additional information about the function.

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eighteen 2.5- gallon buckets are needed to fill a cistern of water

How many 3-gallon buckets of water will fill the cistern.

Answers

Answer:

15 3-gallon buckets of water will fill the cistern

Step-by-step explanation:

Eighteen 2.5- gallon buckets are needed to fill a cistern of water

This means, 2.5 gallon buckets in 18 places

2.5 gallons × 18 = 1 cistern of water

45 gallons = 1 cistern of water

How many 3-gallon buckets of water will fill the cistern.

Number of 3-gallon bucket in a cistern = Total gallons of bucket in one cistern / 3-gallon buckets

= 45 gallons / 3-gallon buckets

= 15

Number of 3-gallon bucket in a cistern = 15

15 3-gallon buckets of water will fill the cistern



Find all the real zeros of the function. y=-1/8 (x-7)³-8 .

Answers

The real zeros of the function y = -1/8(x-7)³ - 8, we need to set the function equal to zero and solve for x. 0 = -1/8(x-7)³ - 8 Therefore,  the real zero of the function y = -1/8(x-7)³ - 8 is x = 3.

To find the real zeros of the function y = -1/8(x-7)³ - 8, we need to set the function equal to zero and solve for x. 0 = -1/8(x-7)³ - 8

First, let's simplify the equation:

0 = -1/8(x-7)³ - 8

0 = -(x-7)³/8 - 8

0 = -(x-7)³/8 - 64/8

0 = -(x-7)³/8 - 8/1

Now, let's find a common denominator:

0 = -(x-7)³/8 - 8/1

0 = -(x-7)³/8 - (8/1)(8/8)

0 = -(x-7)³/8 - 64/8

0 = -(x-7)³/8 - 64/8

0 = -(x-7)³ - 64

Now, let's solve for x by taking the cube root of both sides: ∛0 = ∛-(x-7)³ - 64 0 = -(x-7) - 4 0 = -x + 7 - 4 0 = -x + 3 Finally, let's isolate x: 0 = -x + 3 x = 3

Therefore, the real zero of the function y = -1/8(x-7)³ - 8 is x = 3.

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What is the name of the method for drawing a trend line for the data in a scatterplot in which an oval is drawn around all the points in the scatterplot except the outliers?


a.the oval method

b.the divide-center method

c.the area method

d.the regression calculator method


ty if you answer! :3

Answers

Answer:

c.the area method

Step-by-step explanation:

A scatterplot is a plotting of data that represents the relationship between the two variables that should be numerical in nature. The data points i.e to be shown in a horizontal and vertical axis represent that how much one variable affected by another variable.

In the area method, we plot a data and then draw a shape which can be in oval but it does not include the outliers but the other methods like oval method, divide center method, regression calculator includes the outliers

Therefore the option c is correct

Answer:

c.the area method

Step-by-step explanation:

c.the area method c.the area method c.the area method c.the area methodc.the area methodc.the area methodc.the area method c.the area method c.the area method c.the area method   c.the area method  c.the area method

In the past, the output of a process had a mean of 2.050 and a standard deviation of 0.020 liters. If a current sample of output had these values {2.038 2.054 2.053 2.055 2.059 2.059 2.009 2.042 2.053 2.047}, would that indicate that the process is still "in order" (as opposed to being "out of order")? What if the sample was {2.022 1.997 2.044 2.044 2.032 2.045 2.045 2.047 2.030 2.044}?

Answers

For the first sample {2.038 2.054 2.053 2.055 2.059 2.059 2.009 2.042 2.053 2.047}, the process is still "in order," while for the second sample {2.022 1.997 2.044 2.044 2.032 2.045 2.045 2.047 2.030 2.044}, the process might be "out of order."

To determine whether the process is still "in order" or "out of order," we can compare the current sample of output to the known mean and standard deviation of the process.

For the first sample {2.038 2.054 2.053 2.055 2.059 2.059 2.009 2.042 2.053 2.047}:

Calculate the sample mean by summing up all the values in the sample and dividing by the number of values (n = 10):

Sample mean = (2.038 + 2.054 + 2.053 + 2.055 + 2.059 + 2.059 + 2.009 + 2.042 + 2.053 + 2.047) / 10 = 2.048.

Compare the sample mean to the known process mean (2.050):

The sample mean (2.048) is very close to the process mean (2.050), indicating that the process is still "in order."

Calculate the sample standard deviation using the formula:

Sample standard deviation = sqrt(sum((x - mean)^2) / (n - 1))

Using the formula with the sample values, we find the sample standard deviation to be approximately 0.019 liters.

Compare the sample standard deviation to the known process standard deviation (0.020):

The sample standard deviation (0.019) is very close to the process standard deviation (0.020), further supporting that the process is still "in order."

For the second sample {2.022 1.997 2.044 2.044 2.032 2.045 2.045 2.047 2.030 2.044}:

Calculate the sample mean:

Sample mean = (2.022 + 1.997 + 2.044 + 2.044 + 2.032 + 2.045 + 2.045 + 2.047 + 2.030 + 2.044) / 10 ≈ 2.034

Compare the sample mean to the process mean (2.050):

The sample mean (2.034) is noticeably different from the process mean (2.050), indicating that the process might be "out of order."

Calculate the sample standard deviation:

The sample standard deviation is approximately 0.019 liters.

Compare the sample standard deviation to the process standard deviation (0.020):

The sample standard deviation (0.019) is similar to the process standard deviation (0.020), suggesting that the process is still "in order" in terms of variation.

In summary, for the first sample, the process is still "in order" as both the sample mean and sample standard deviation are close to the known process values.

However, for the second sample, the difference in the sample mean suggests that the process might be "out of order," even though the sample standard deviation remains within an acceptable range.

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what is the relationship between corresponding terms in the two sequences 2 1 4 2 6 3 8 4 10 5

Answers

Answer:

what the answer

Step-by-step explanation:

Squares PQRS and TUVW are shown below. Which sequence of transformations of squarePQRS shows that square PQRS is congruent to square TUVW?a) A translation 2 units up and 2 units to theright, then a reflection over the x-axisb) A translation 2 units up and 2 units to theright, then a reflection over the y-axisc) A translation 2 units down and 2 units to theleft, then a reflection over the x-axisd) A translation 2 units down and 2 units to theleft, then a reflection over the y-axis

Answers

A translation there is a reflection across the x-axis, 2 units down and 2 units to the left. As a result, choice C is the right option.

What is Translation?

A point, line, or geometric figure can be transformed in one of four ways, each of which affects the shape and/or location of the object. Pre-Image refers to the object's initial shape, and Image, after transformation, refers to the object's ultimate shape and location.

As seen on the graph, the square PQRS is translated 2 units to the left and 2 units to the right before being reflected on the x-axis.

A translation after a reflection across the x-axis, there are 2 units down and 2 units to the left. As a result, choice C is the right option.

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Complete Question:

Squares PQRS and TUVW are shown below. Which sequence of transformations of squarePQRS shows that square PQRS is congruent to square TUVW?a) A translation 2 units up and 2 units to theright, then a reflection over the x-axisb) A translation 2 units up and 2 units to theright, then a reflection over the y-axisc) A translation 2 units down and 2 units to theleft, then a reflection over the x-axisd) A translation 2 units down and 2 units to theleft, then a reflection over the y-axis

Squares PQRS and TUVW are shown below. Which sequence of transformations of squarePQRS shows that square

When two times a number is subtracted from the square of the number, the result is 35. Determine the number(s) algebraically.

The answer is -5 or 7.

For this you have to come up with a equation and solve/simplify from there.

Please help, thank you.

Answers

Answer:

Step-by-step explanation:

When two times a number is subtracted from the square of the number, the result is 35. Determine the

Find the surface area of the pyramid. The side lengths of the base are equal.

pls help D:

Find the surface area of the pyramid. The side lengths of the base are equal.pls help D:

Answers

Hi!! :D

Answer:

I got 177.46

Step-by-step explanation:

I just used a surface area calculator!

So sorry if this is wrong!

Have a great day! <3

5. Put the decimals in order from least to greatest. 87.5, 87.05, 87.0051, 87.505​

Answers

Answer:

\(87.0051, ~ 87.05, ~ 87.5, ~87.505\)

Step-by-step explanation:

\(87.0051<87.05<87.5<87.505\)

Anyone that is good at math, Mind giving me some help please?

Anyone that is good at math, Mind giving me some help please?

Answers

Answer:

Add 3 after multiplying 1 and x.

Step-by-step explanation:

In this question we have to convert the given algebraic expression into a verbal expression.

Given algebraic expression is,

y = x + 3

Here, x is multiplied by 1

And 3 is added to x.

Therefore, verbal expression or statement will be,

Add 3 after multiplying 1 and x.

This rule defines the relationship between x and y.

How to solve this? Please help.

How to solve this? Please help.

Answers

Answer:

\( \frac{135 \times {10}^{ - 9} }{.0005 \times {10}^{ - 5} } = \frac{135 \times {10}^{ - 9} }{5 \times {10}^{ - 9} } = 27 = \frac{27}{1} \)

The ratio of the size of cell A to the size of cell B is 27, or 27/1.

Point A is located at (4,6) and is to be shifted three units to the left and four units downward. After this translation, the point is rotated 270 ∘
about the origin. What is the location of this point after these transformations? A. (2,−1) B. (1,2) C. (−1,−2) D. (−2,1)

Answers

Option D is correct.

Given that the point A is located at (4, 6) and is to be shifted three units to the left and four units downwards. Hence the new coordinates of A will be (4 - 3, 6 - 4) = (1, 2).

Now we have to rotate the point A 270° about the origin. The rotation of point A 270° about the origin will result in point A being transformed to point A', located at (-2, 1).

Therefore, the location of point A after these transformations is D. (-2, 1).

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9 over 2 multiplied by x over 24

Answers

Answer:

3x/16

Step-by-step explanation:

1

Combine multiplied terms into a single fraction

2

Eliminate quotient in numerator

3

Multiply the numbers

4

Cancel terms that are in both the numerator and denominator

The volume of water in a dam is determined by the formula V=2πh ^2 (3d−3h). After a rainfall, water is flowing into the dam resulting in an increase in the water level h at a rate of 0.06 m/hr while the diameter d of the dam is increasing at a rate of 0.25 m/hr. Determine the rate at which the volume is changing the instant when d=20 m and h=6 m.

Answers

At the instant when the diameter of the dam is 20 m and the water level is 6 m, the rate at which the volume of water in the dam is changing is approximately 8.948 cubic meters per hour.

To determine the rate at which the volume is changing, we need to use the given formula and calculate the derivatives with respect to time. Let's denote the volume as V, the diameter as d, and the water level as h. The formula for the volume of water in the dam is V = 2πh^2(3d - 3h).

We are given that the water level is increasing at a rate of 0.06 m/hr, which means dh/dt = 0.06 m/hr. Additionally, the diameter is increasing at a rate of 0.25 m/hr, which gives us dd/dt = 0.25 m/hr.

We need to find dV/dt, the rate at which the volume is changing. To do this, we can apply the chain rule of differentiation. Taking the derivative of V with respect to time, we have:

dV/dt = (dV/dd) * (dd/dt) + (dV/dh) * (dh/dt)

Now, let's calculate the partial derivatives. Taking the derivative of V with respect to d, we get:

dV/dd = 2πh^2(3 - 3h)

And taking the derivative of V with respect to h, we get:

dV/dh = 2πh(6d - 6h)

Substituting the given values of d = 20 m and h = 6 m into the expressions for dV/dd and dV/dh, we can evaluate these partial derivatives. Plugging in the rates of change dh/dt = 0.06 m/hr and dd/dt = 0.25 m/hr, we can now calculate dV/dt:

dV/dt = (2π(6^2)(3(20) - 3(6)) * 0.25 + (2π(6)(6(20) - 6(6)) * 0.06

Simplifying this expression yields dV/dt ≈ 8.948 cubic meters per hour. Therefore, the rate at which the volume is changing at the instant when d = 20 m and h = 6 m is approximately 8.948 cubic meters per hour.

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