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The science club at Jefferson High School is performing an experiment. They want to see if they can design a case that will prevent an egg from breaking when it is dropped from the roof of the school. The egg, safe in its case, is tossed into the air with an initial velocity of 5 meters per second from a height of 8 meters. The equation
h
(
t
)
4.9
t
2
5
t
8
models the height of the egg in meters after t seconds.
About how many seconds does it take for the egg to hit the ground?
Round your answer to the nearest tenth of a second.
seconds
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Skill IconZ.1Solve a quadratic equation using square roots
Skill IconZ.3Solve a quadratic equation by factoring
Skill IconZ.5Solve a quadratic equation by completing the square
Skill IconZ.6Solve a quadratic equation using the quadratic formula
Skill IconZ.7Solve quadratic equations: word problems
Skill IconZ.8Using the discriminant