The answer is -5x^4+8x^3-2x+1
Answer:
b
Step-by-step explanation:
1000 meters in a kilometer
Answer:
= 23
Step-by-step explanation:
(5) (5) - 2 ( multiply )
= 5 * 5 = 25
( subtract ) 25 - 2 = 23

It should be x=11 instead of x=-11, so
he is not correct because he made a sign error.
<span>Perimeter =2w+2L= 520.
We can solve this by understanding that the area is maximized by a square
Therefore L=w.
p=2w+2w=520=4w
w=130
Area
A=wL=130(130)= 16900 square yards</span>