Herione5 Herione5
  • 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.)

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ichis ichis
  • 22-02-2019
16x16 = 256+7t-1
= 255+7t
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