Asked by Ivan
The equation y = -16t^2 + 60t describes the height (in feet) of a projectile launched from the ground at 60 feet per second upward. In how many seconds will the projectile first reach 56 feet in height? Express your answer as a decimal rounded to the nearest hundredth.
Answers
Answered by
oobleck
-16t^2 + 60t = 50
(4t-5)(5-2t) = 0
(4t-5)(5-2t) = 0
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