7. Area of a Ripple A stone is dropped in a lake, creating a circular ripple that travels outward at a speed of 60 cm/s. (a) Find a function g that models the radius as a function of time. (b) Find a function f that models the area of the circle as a function of the radius. (c) Find fog. What does this function represent?

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A: Consider the given figure as

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A: Here we have to  Express the volume V of the cylinder as a function of r.

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A: Question is solved.

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A: Explanation of the answer is as follows

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A: The graph is shown below:

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A: Explanation of the solution is given below...

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A: According to our terms and condition I have solved first 3  question for next parts repost

Q: est value of the function 1.1) is

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