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@qharlie
Last active April 11, 2017 18:55
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The radius of a sphere is increasing at a rate of 7.5 meters per minute.
At a certain instant, the radius is 5 meters.
What is the rate of change of the surface area of the sphere at that instant (in square meters per minute)?
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qharlie commented Apr 11, 2017

Thank you @rballet it did help!

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