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03-16-2008, 09:38 PM
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| Can anyone help me with this math word problem? (gr. 11 quadratics)?
ok so the question says "the function (h=-5t^2+20t+2) gives the approximate height in (h) meters, of a thrown football as a function of the time, (t) seconds, since it was thrown, the ball hit the ground before a receiver could get near it" a) how long was the ball in the air, to the nearest 10th of a second? b) for how many seconds was the height of the ball at least 17m? plz try and answer showing all steps/work  thanks!!!!
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