Mathematics, 08.04.2021 05:20, malaysiasc93

3. Amanda threw her Algebra book off a 4-story building at the end of the school year. The equation h = -16t2 + 24t + 40 gives the height of the book after t seconds.
At what time will her book hit the ground?

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3. Amanda threw her Algebra book off a 4-story building at the end of the school year. The equation h = -16t2 + 24t + 40 gives the height of the book after t seconds. At what time will her book hit the ground?

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3. Amanda threw her Algebra book off a 4-story building at the end of the school year. The equation h = -16t2 + 24t + 40 gives the height of the book after t seconds.
At what time will her book hit the ground?