Answer:
21x^2-2x+1
Step-by-step explanation:
The area of shaded region= The area of the floor - area of the identical islands
The area of shaded region=(5x+1)^2-2*(2x)(x+3)=25x^2+1+10x-4x^2-12x=21x^2-2x+1
 
        
             
        
        
        
Answer: B
<u>Step-by-step explanation:</u>
There are 26 letters in the alphabet.  D is the 4th letter, so there are 26 - 4 = 22 letters after D.
 ÷
 ÷  =
 = 
 
        
             
        
        
        
The table could include values like this:
x     y
-2   -8
-1   -2
0    0
1    -2
2    -8
        
             
        
        
        
Answer:
B, C, and E
Step-by-step explanation:
In order for a function to be a function, an ordered pair cannot be on the same x coordinate
 
        
             
        
        
        
Answer:
I got 32.
Step-by-step explanation:
I used the Pythagorean theorem to find the lengths of the width and length. The length between (-1, 4) and (3, 3) was approximately 4 in. The distance between (-1, 4) and (-3, -4) was approximately 8 in. I then used those numbers to find the perimeter ((2*4)+(2*8))