Mathematics, 22.08.2021 01:20, crebflower

A projectile is thrown upward so that its distance above the ground after t seconds is given by the function h(t) = -16t2 + 640t. After how many seconds does the projectile take to reach its maximum height? Show your work for full credit

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A projectile is thrown upward so that its distance above the ground after t seconds is given by the...