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A fireworks mortar is launched straight upward from a pool deck platform 2 m off the ground at an initial velocity of 42m/sec. The height

A fireworks mortar is launched straight upward from a pool deck platform 2 m off the ground at an initial velocity of 42m/sec. The height of the mortar can be modeled by h(t)=-4.9t2 +42t +2, where h(t) is the height in meters and t is the time in seconds after launch. what is the maximum height? round to nearest meter

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