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Mathematics 7 Online
OpenStudy (anonymous):

A baseball player hits a ball toward the outfield. The height h of the ball in feet is modeled by h(t) = -16t2 + 22t + 3, where t is the time in seconds. In addition, the function d(t) = 85t models the horizontal distance d traveled by the ball. If no one catches the ball, how long will it stay in the air? (Round to the nearest tenth of a second and enter only the number.)

OpenStudy (anonymous):

well for the first equation you put in 1.5 and you get 0..

OpenStudy (anonymous):

Then for the next equation if you plug that in you get 127.5..

OpenStudy (anonymous):

So is it just 1.5 seconds..

OpenStudy (anonymous):

solve 0= -16t^2 + 22t + 3 for t

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