An expanding sphere has radius r = 0.4t cm at time t (in seconds). Let V be

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An expanding sphere has radius r = 0.4t cm at time t (in seconds). Let V be the sphere’s volume. Find dV/dt when (a) r = 3 and (b) t = 3.

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Calculus

ISBN: 9781319055844

4th Edition

Authors: Jon Rogawski, Colin Adams, Robert Franzosa

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