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08-06-2017
Mathematics

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H= 215t-16t^2
Find all values of t for which the rocket’s height is 97 feet.

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mreijepatmat mreijepatmat

08-06-2017

H = 215t - 16.t² or H = -16t² + 215t

97 = -16t² + 215t

-16t² + 215t - 97 = 0

solving this equation genes t' = 12.97 seconds and t" = 0.467??

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