Mathematics, 12.10.2020 04:01, kobrien9146

An observation deck extends 199 feet out above a valley. The deck sits 149 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+149. How long will it take for the object to be 5 feet above the valley floor?

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An observation deck extends 199 feet out above a valley. The deck sits 149 feet above the valley flo...