Mathematics, 30.03.2021 19:00 leeleegavin212
The height in meters, S, of a rocket t seconds after being launched with an upward velocity of 80 meters per second may be approximated by this equation:
S = 80t - 5t^2
How many seconds after launch is the rocket first 140 meters above the ground?
A. 14
B. 5.3
C. 8
D. 2
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Answers: 1
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The height in meters, S, of a rocket t seconds after being launched with an upward velocity of 80 me...
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