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May 27, 2015

Homework Help: help on calculus

Posted by winston on Thursday, December 30, 2010 at 8:20pm.

A spherical balloon is being filled with air in such a way that its radius is increasing at a rate of 2 centimeters per second. At what rate is the volume of the balloon changing at the instant when its surface has an area of 4 pi or 12.56637061 square centimeters?

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