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The function f(t) = −5t 2 + 20t + 60 models the approximate height of an objectt seconds after it is launched. How many seconds does it take the object to hit theground?
answered
May 6, 2019
Mathematics
high-school
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votes
7.5k
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NEED HELP NOW 30 POINTS!!!!!
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Dec 12, 2018
Mathematics
middle-school
5
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46.2k
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