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Mathematics, 06.04.2020 16:29 yyyyyyyyy8938

A toy rocket launched into the air has a height (h feet) at any given time (t seconds) as
h = -16t2 + 160t until it hits the ground. At what time(s) is it at a height of 9 feet above the
ground?

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A toy rocket launched into the air has a height (h feet) at any given time (t seconds) as
h =...

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