Question

PLEASE HELP FIND THIS ANSWER, ASAP

The altitude "a" (in feet) of a plane "t" minutes after liftoff is given by a = 3400t+600. Choose the equation for when the plane is at an altitude of 21.000 feet and solve. a = 3400 21000+600 21000=3400t+600​

Answer 1

The equation for when the plane is at an altitude of 21,000 feet is:

21000=3400t+600

To solve for “t”, we can subtract 600 from both sides of the equation:

21000−600=3400t

20400=3400t

Then, divide both sides by 3400 to solve for “t”:

t=340020400​

So, the plane will be at an altitude of 21,000 feet approximately 6 minutes after liftoff.

Explanation: