During batting practice, two pop flies are hit from the same location, 2 s apart. The paths are modeled by the equations h = -16t2 + 56t and h = -16t2 + 156t - 248, where t is the time that has passed since the first ball was hit.Explain how to find the height at which the balls meet. Then find the height to the nearest tenth.
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Answer:
9514 1404 393Answer: 40.5 ftStep-by-step explanation:Solve for the time at which the balls meet, then find the corresponding height.__The balls will meet at the height such that the two values of h are the same. -16t^2 +56t = h = -16t^2 +156t -248 0 = 100t -248 t = 2.48Using the first equation to find h, we have ... h = t(-16t +56) = 2.48(-16·2.48 +56) = 40.4736The balls meet at a height of about 40.5 feet.
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