Question

the altitude a (in feet) of a plane T minutes after liftoff is given by A=3400 t + 600 how many minutes after liftoff is the plane at an altitude of 21000 ft

The plane reaches an altitude of 21,000 ft ____ minutes after lift off ​

Answer 1

Answer:

The altitude A in feet of a plane T minutes after liftoff is given by a

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

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