WeBWorK using host: https://math-webwork3.unl.edu, format: simple seed: 123567890

Water is leaking out of an inverted conical tank at a rate of
at the same time that water is being pumped into the tank at a constant rate. The tank has height and the the diameter at the top is . If the water level is rising at a rate of
when the height of the water is , find the rate at which water is being pumped into the tank in cubic centimeters per minute.