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Mathematics, 22.09.2021 14:00 lyhkng2720

A 29-meter ladder is sliding down a vertical wall so the distance between the top of the ladder and the ground is decreasing at 7 meters per minute. At a certain instant, the bottom of the ladder is 21 meters from the wall. What is the rate of change of the distance between the bottom of the ladder and the wall at that instant (in meters per minute)?

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