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Asked by Jeje

A projectile launched into the air can be modelled by the function h(t) =-4.9t^(2) + 4.1t + 8.2 where h(t) represents the height of the projectile above the ground, in meters, t seconds after it was launched. What time is the projectile at a height of 3 meters?
4 years ago

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Answered by R_scott
plug in 3 for h , then solve for t using the quadratic formula
4 years ago

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