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The height of a golf ball hit off a 128-foot cliff is modeled by the function h(t) = −16t^2 + 32t + 128, where h is height in feet and t is time in seconds. Find the time the golf ball takes to reach the ground.

 Jul 27, 2021
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h   will = 0     when the ball hits the ground

 

0 = -16t^2+32t+128     Use quadratic formula of factoring to solve for 't'    throw out the negative t value

 Jul 27, 2021

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