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Mathematics 79 Online
OpenStudy (anonymous):

a) A baseball player hits a ball toward the outfield. The height h of the ball in feet is modeled by h(t) = -16t2 + 22t + 3, where t is the time in seconds. In addition, the function d(t) = 85t models the horizontal distance d traveled by the ball. If no one catches the ball, how long will it stay in the air? (Round to the nearest tenth of a second and enter only the number.) b) To the nearest tenth of a foot, what is the horizontal distance that the ball travels before it hits the ground? c)A pitch may result in a strike if its height is between 2.5 and 5 feet when it crosses home plate. This range is called the batter's strike zone. The pitcher throws the ball from a height of 6 feet with an initial vertical velocity of 5 ft/s and a horizontal velocity of 116 ft/s. Can this pitch result in a strike?

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