it will hit the ground when the height is zero, right? So just solve
-2t^2 + 10t +12 = 0
in the usual way that can be rewritten as
t^2 - 5t - 6 = 0
which should be easy to factor and solve.
Jack is standing on the roof of his house in kicked a rubber ball in the air for it to land on the ground for his dog Henry to fetch.The ball is launched into the air from a height of 12 feet at time t=0. The function that models the situation is h(f) = -2t^2 + 10t +12, where T is measured in seconds and H is the height in feet
When will the ball hit the ground?
Please answer this with steps on how to solve it. Thank you.
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