SOLUTION: Please help me solve this problem: A ball is projected upward from ground level. After t seconds, its height in feet is a function defined by f(t)=-16t^2 + 96t. After how many seco

Question 886814: Please help me solve this problem: A ball is projected upward from ground level. After t seconds, its height in feet is a function defined by f(t)=-16t^2 + 96t. After how many seconds will it reach a height of 128 feet?
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Please help me solve this problem: A ball is projected upward from ground level. After t seconds, its height in feet is a function defined by f(t)=-16t^2 + 96t. After how many seconds will it reach a height of 128 feet?
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-16t^2 + 96t = 128
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