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Mathematics 10 Online
OpenStudy (anonymous):

A juggler throws a ball into the air, releasing it 5 feet above the ground with an initial vertical velocity of 15ft/sec. She catches the ball with her other hand when the ball is 4 feet above the ground. Using the model h= -16t^2 + v,0 +h,0, find how long the ball is in the air.

OpenStudy (amistre64):

any ideas?

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