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Mathematics, 07.06.2021 19:00 melmar76

17. A tennis ball is dropped from the top of a tall building. The ball's height, in meters, 1 seconds after it is released is h(t) = 4.912 +20 + 50
When is the ball 20 meters above the ground? (2 decimal places) (hint: set = 20 and solve for x)

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