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Mathematics 8 Online
OpenStudy (anonymous):

Siska hit a golf ball into the air with an initial velocity of 56 feet per second. The height h in feet of the ball above the ground can be modeled by h=-16t^{2}+56t, where t is the time in seconds after Sisika hit the ball. Find the time it takes the ball to reach 49 feet above the ground.

OpenStudy (anonymous):

just plug ur 49 in for h and solve for t

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