SOLUTION: A ball is thrown vertically upward from the ground. Its distance in feet from the ground in t seconds is s = -16t^2 + 240t. After how many seconds will the ball be 864 feet from th
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Question 1115547: A ball is thrown vertically upward from the ground. Its distance in feet from the ground in t seconds is s = -16t^2 + 240t. After how many seconds will the ball be 864 feet from the ground?
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
A ball is thrown vertically upward from the ground. Its distance in feet from the ground in t seconds is s = -16t^2 + 240t. After how many seconds will the ball be 864 feet from the ground?
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s = -16t^2 + 240t
-16t^2 + 240t = 864
Solve for t
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