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4. A gymnast dismounts the uneven parallel bars. Her height, h, depends on
the time, t, that she is in the air as follows:
h-1612 + 8t + 8
a) How long will it take the gymnast to reach the ground?
b) When will the gymnast be 8 feet above the ground?​


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A gymnast dismounts the uneven parallel bars. Her height, h, depends on the time, t, that she is in the air as follows: h = -16t2 + 8t + 8

a) How long will it take the gymnast to reach the ground?

b) When will the gymnast be 8 fre