°Alternate interior angles are equal 
°Corresponding angles are equal
°Vertically opposite angles are equal 
°Angles on the same side of tranversal are supplementary 
 
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
√2x(7 + √2x)
7√2x + √2x ·√2x
7√2x + 2x
or
2x + 7√2x
A is the answer
 
        
             
        
        
        
X=-2 not 2. 
EXPLANATION:
x-2y=12
-3x+y=-1
x-2y=12
2(-3x+y)=-1
x-2y=12
-6x+2y=-2
-5x=10
5x/-5=10/-5
x=-2
        
             
        
        
        
Answer:
23
Step-by-step explanation:
Because 23•23=529 so the square root of 529 is 23.
 
        
             
        
        
        
First you have to set up your equation. 5x+80 and x+15.