So first off, remember the formula for the area of a rectangle. it's length time width right? or, you could think that A= 2 things multiplied together. how can we simplify x^2 - x -72 to equal two things multiplied together? well, we can factor it! We know that one of the factors is x+8 right? so what's the other factor? it would be x-9. so, we know width is x-9. I'm not sure if you need an actual value for width. if so, I could probably go further.
The plane will descend 900 ft every minute
This is the case because we divide 4500 by 5
Hope this helps and have a great day!
Answer:
D
Step-by-step explanation:
they are like terms
