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September 30, 2014

September 30, 2014

Posted by **Lauren Marie** on Thursday, August 11, 2011 at 11:35am.

Determine the time at which the ball reaches its maximum height. Determine the maximum height of the ball.

- College Algebra -
**Reiny**, Thursday, August 11, 2011 at 4:49pmf'(t) = -32t + 112

= 0 for a max of f(t)

32t = 112

t = 3.5

then f(3.5) = -16(3.5^2) + 112(3.5) + 12

= 208

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