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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? The plane reaches an altitude of 21,000
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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?

The plane reaches an altitude of 21,000 feet __ minutes after liftoff.

User Opensas
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4 votes

Answer:6 minutes

Explanation:

User RAJNIK PATEL
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