Wednesday

April 16, 2014

April 16, 2014

Posted by **chase** on Tuesday, January 29, 2013 at 5:53pm.

- Algebra -
**Henry**, Thursday, January 31, 2013 at 10:30pmh = 280t - 7t^2 = 2800.

-7t^2 + 280t - 2800 = 0

Use Quadratic Formula.

t = 20 s.

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