Multiple Choice
Solve the problem.
-A balloon (in the shape of a sphere) is being inflated. The radius is increasing at a rate of 4 cm per second. Find a function, r(t) , for the radius in terms of t. Find a function, V(r) , for the volume of the balloon in terms of r. Find (t) .
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Correct Answer:

Verified
Correct Answer:
Verified
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