Math
posted by Jane .
We are studying Quadratic formula:
A football player punts a ball. The path of the ball can be modeled by the equation y=0.004x(squared) + x + 2.5, where x is the horizontal distance, in feet, the ball travels and y is the height, in feet, of the ball. How far from the football player will the ball land? Round to the nearest tenth of a foot.

y = 0.004x^2 + x + 2.5
the ball lands where y=0
0.004x^2 + x + 2.5 = 0
x = 25(5+√26) = 252.5
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