Question 1025171:  The height, h, in feet of a golf ball above the ground after being hit into the air is given by the equation, h  = -16t^2 + 64t, where t is the number of seconds elapsed since the ball was hit. How many seconds does it take for the golf ball to hit the ground? 
 Answer by Alan3354(69443)      (Show Source): 
You can  put this solution on YOUR website! The height, h, in feet of a golf ball above the ground after being hit into the air is given by the equation, h = -16t^2 + 64t, where t is the number of seconds elapsed since the ball was hit. How many seconds does it take for the golf ball to hit the ground?  
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h = -16t^2 + 64t 
It hits the ground when h=0. 
-16t^2 + 64t = 0 
Solve for t 
 
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