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A cylinder begins with a diameter of 28 yards and a height of 23 yards. If the diameter decreases at an instantaneous rate of -

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A cylinder begins with a diameter of 28 yards and a height of 23 yards. If the diameter decreases at an instantaneous rate of - 4 yd/sec and the height increases at an instantaneous rate of 3 yd/sec, determine the rate at which the surface area of the cylinder is changing. 28 yd 23 yd

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