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Mathematics, 17.11.2020 02:10 shamiya15

An observation deck extends 119 feet out above a valley. The deck sits 69 feet above the valley floor. If an object is dropped from the observation deck, its height h in feet, after t seconds, is given by h=−16t^2+69. How long will it take for the object to be 5 feet above the valley floor?

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An observation deck extends 119 feet out above a valley. The deck sits 69 feet above the valley floo...

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