Multiple Choice
Solve the problem.
-A stone is thrown into a pond. A circular ripple is spreading over the pond in such a way that the radius is increasing at the rate of 4.7 feet per second. Find a function, r(t) , for the radius in terms of t. Find a function,
A(r) , for the area of the ripple in terms of r. Find t) .
A)
B)
C)
D)
Correct Answer:

Verified
Correct Answer:
Verified
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