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Mathematics, 24.08.2019 15:30 williamvh2001

Ineed with math fast (well explained) worth 18
1: a ball is arremesada in the air and its height above the ground in time x (in seconds) is given by the function f (x) = x² - 5x. determine how long the ball hit the ground again.
2: a banking application yields a day x mesum value in real given by the function f (x) = x² - 4x - 5. determine the days when there is no income that application.
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Ineed with math fast (well explained) worth 18
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