the formula h=-16t^2 +vt if the model rocket is fired at an intial vertical velocity of 78 meteres per second will the rocket reach a height of 80 meters? t

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a ball is thrown into the air with an velocity of 48ft/s.its height h in feet after t seconds is given by th function h=-16t^2 + 48t +9 how many seconds does the ball reach its maximum he...

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