Determining area-volume and expantion

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A.) let A be the area of a circle of radius r that is changing w/ respect to time. if dr/dt is a constant, is dA/dt a constant, explain.

b.) let V be the volume of a sphere of radius r that is changing w/ respect to time. If dr/dt is constant, is dV/dt constant, explain.

c.) All edges of a cube are expanding at a rate of 3 centimeters per second. How fast is the volume changing when each edge is a.) 1 centimeter b.) 10 centimeters?

Reference no: EM13127091

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