Mathematics

Problem

Water drains from a vertical cylindrical tank of radius 5 cm at a constant rate of 500 cm³/min. At this instant, what is the rate of change of the water height in the tank? a)

-\dfrac{100}{\pi}\text{ cm/min}

\dfrac{20}{\pi}\text{ cm/min}

-\dfrac{20}{\pi}\text{ cm/min}

-20\text{ cm/min}

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