Kenneth S. answered • 11/28/17

Tutor

4.8
(62)
Calculus will seem easy if you have the right tutor!

dV/dt = 4(pi)r

^{2}(dr/dt)Given: dr/dt = -2; r = 3

Find: dV/dt

when r = 3 inches dV/dt = 4(pi)(3

^{2})(-2) = -72pi sq in/hour