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OpenStudy (anonymous):
The surface area, S, of a sphere of radius r feet is S = S(r) = 4πr^2. Find the instantaneous rate of change of the surface area with respect to the radius r at r = 8.
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OpenStudy (anonymous):
16pi right? @danish071996
OpenStudy (anonymous):
no 64 pi
OpenStudy (amistre64):
we need to know more of a process to determine why you got 16pi in the frrst place. if you are not working the problem correctly, then we can help you fix your mistake.
OpenStudy (anonymous):
oh i see what i did
OpenStudy (anonymous):
ok
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