Friday
February 27, 2015

Homework Help: math

Posted by Artis on Saturday, June 19, 2010 at 1:01pm.

Can you give me step by step instruction on how to solve this problem

Helium is pumped into a spherical balloon at a constant rate of 4cubic feet per second. How fast is the radius increasing after 3 minutes? At what time (if any) is the radius increasing at a rate of 120 feet per second?

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