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Derivatives and Rate of Change : Rate of Drop of Water Level in a Funnel

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Water is running out of a conical funnel at the rate of 1 cubic inch per second. If the radius of the top of the funnel is 4 inches and the height is 8 inches, find the rate at which the water level is dropping when it is 2 inches from the top.

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The Rate of Change of the Water Level in a Funnel is found. The solution is detailed and well presented.

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