The height of a pop fly ball over the time after the ball is hit is modeled by the function, h(t) = -4t^2+t+60, where h is the ball's height in feet above the ground and t is the
time in seconds after the ball is hit. Use the quadratic formula to find how many seconds it
takes for the ball to hit the ground.
(Please help.. HURRY)

In the past, professional baseball was played at the astrodome in houston, texas. the astrodome has a maximum height of 63.4 m. the height of a baseball t seconds after it is hit straight up in the air with a velocity of 45 ft/s is given by h = -9.8t2 + 45t + 1. will a baseball hit straight up with this velocity hit the roof of the astrodome? use the discriminant to explain your answer.

3× __ -2=15 7 2× __+1=7 5 7× =22 15 5× __+10=2 8 × __+4=20 6 × =10 3 × __+2=8 6 × __+8=8 9 × __+7=20 6

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