In 2004, the highest spaceplane flight was made in SpaceShipOne. A flight with this altitude can be modeled by the function

Question

In 2004, the highest spaceplane flight was made in SpaceShipOne. A flight with this altitude can be modeled by the function below, where h is the altitude in meters and t is flight time in seconds. Approximately how long did the flight last?
h(t) = -0.17t² + 187t +61,000
t≈1101.3 seconds
t≈1363 seconds
t≈261.7 seconds
t≈1596 seconds

Kunduz · Accepted Answer

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