A football is propelled straight up from ground level. Its height above the ground at time t is modeled by g(t)= -16t^2 + 7t where the height, g(t) is measured in feet and the time elapsed, t, is measured in seconds a What is the maximum height of the football? Show your work. b) At what time does the football reach its maximal height? Show your work c) After how many seconds in air does the football hit the ground? Show your work.

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A: This question is related to trignometry, We will solve it using trignometric identities.

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