November 30, 2015

Homework Help: Calculus

Posted by Z32 on Thursday, September 24, 2009 at 10:32pm.

Air is being pumped into a spherical balloon so that its volume increases at a rate of 30 cubic centimeters per second. How fast is the surface area of the balloon increasing when its radius is 19 cm?
V= 4/3*pi*r^3
S= 4 pi r^2

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