Mathematics
Mathematics, 12.11.2019 04:31, krystalhurst97

The altitude a (in feet) of a plane t minutes after liftoff is given by a=3400t+600. how many minutes after liftoff is the plane at an altitude of 21,000 feet?

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The altitude a (in feet) of a plane t minutes after liftoff is given by a=3400t+600. how many minute...

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