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April 19, 2015

Posted by **CRAig** on Tuesday, January 3, 2012 at 7:39pm.

h=-16t^2 + 48t + 5

where t is the time in seconds that the ball has been in the air. After how many seconds in the ball at of 37 feet.

- ALGEBRA 1 -
**Damon**, Tuesday, January 3, 2012 at 8:15pmI have not seen a gravity problem in feet instead of meters for a while.

37 = -16 t^2 + 48 t + 5

16 t^2 - 48 t + 32 = 0

t^2 - 3 t + 2 = 0

(t-2)(t-1) = 0

t = 1 or 2

so

the ball is at 37 feet after one second on the way up and at two seconds on the way down

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