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  3. 1. a 20 foot ladder leans against a vertical wall.

1. A 20 foot ladder leans against a vertical wall. The bottom of the ladder slides...

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Basic Math

1. A 20 foot ladder leans against a vertical wall. The bottom ofthe ladder slides away from the wall at 2 ft/sec.

a. How fast is the top of the ladder sliding down the wall whenthe top of the ladder is 12 feet from the ground?

b. Interpret the meaning of the sign.

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