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22-02-2019
Mathematics

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A projectile is launched from a hole in the ground one foot deep. It’s height follows the equation h= -16^2+7t-1. Use factoring by perfect-squares to find the time when the projectile lands back on the ground. (Hint: Landing on the ground means projectial height is zero.)

Respuesta :

22-02-2019

16x16 = 256+7t-1
= 255+7t

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