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October 21, 2014

October 21, 2014

Posted by **nicole** on Monday, November 19, 2012 at 5:41pm.

- Intermediate Algebra -
**Reiny**, Monday, November 19, 2012 at 5:56pmwhen it hits the ground, h = 0

-16t^2 + 70t + 50 = 0

8t^2 - 35t - 25 = 0

(t-5)(8t + 5) = 0

t = 5 or t = -5/8, but t can't be negative

so it will hit the ground in 5 seconds.

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