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Mathematics 13 Online
OpenStudy (anonymous):

The top of 25 foot ladder is sliding down a vertical wall at a constant rate of 3 feet per minute When the top of the ladder is 7 feet from the ground, what is the rate of change of the distance between the bottom of the ladder and the wall?

OpenStudy (anonymous):

|dw:1334362930804:dw| when y=7, x=24 using the pythagorean theorem. y' is given as -3 so plug those values in to get x', the rate at which x is changing.

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