Question

An airplane at cruising altitude starts descending for a landing. The function f (t) = 33,600 – 1500t describes its altitude t minutes after starting its descent. What is the airplane's altitude after 10 minutes?

Answer 1

18,600

Step-by-step explanation

The function that describes the altitude of the plane t minutes after starting its descent is

`f(t) = 33600 - 1500t`

To find the airplane's altitude after 10 minutes, we substitute t=10 into the function.

`f(10) = 33600 - 1500(10)`

`f(10) = 33600 - 15000`

`f(10) = 18600`

Therefore the airplane's altitude after 10 minutes is 18,600 units.