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gs68532:
A ball is thrown into the air with an upward velocity of 80 feet per second. The function h = -16t2 + 80t models the height h, in feet, of the ball at time t, in seconds. When will the ball reach the ground?
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dude:
Welcome to QuestionCove! The problem gives you the equation and variables. **Ground level and the height are correlated!
Mercury:
at the ground, h = 0 so h = -16t2 + 80t = 0 factor out 16t and solve for t
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