Mathematics - Algebra
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If an object is propelled upward from a height of as feet at an initial velocity of v feet per second, then its height h after t seconds is given by the equation h = - 16t^2 + vt+s, where h is in feet. If the object is propelled from a height of 4 feet with an initial velocity of 96 feet per second, its height h is given by the equation h = - 16t^2 + 96t + 4.
After how many seconds is the height 144 feet?
The time is __ seconds.
Use a comma to separate answers. Type either fractions or mixed numbers
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h = -16t^2 + 96t + 4
144 = -16t^2 + 96t + 4
16t^2 - 96t + ...
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