The Volume of a Right-Circular Cylinder of Radius R and Height

question 321

Essay

The volume of a right-circular cylinder of radius r and height h is .
Suppose the radius and height of the cylinder are changing with respect to time t.At a certain instant of time, the radius and height of the cylinder are 8 and 4 in.and are increasing at the rate of 0.5 and 0.1 in./sec, respectively.
How fast is the volume of the cylinder increasing?

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