dmontoya0315
Answered

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A ball is thrown from an initial height of 5 feet with an initial upward velocity of 44ft/s. The ball's height h (in feet) after t seconds is given by the following.
Find all values of t for which the ball's height is 25 feet.
Round your answer(s) to the nearest hundredth.
(If there is more than one answer, use the "or" button.)

Sagot :

0=44-25t-5t^2

t^2+2t-8=0

(t+4)(t-2)=0

t=-4 (not a solution) or t=2

Answer: after 2 seconds

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