Answer:
Step-by-step explanation:
-1/2x -7=-11
-1/2x +4=0
4=1/2x
x=8
 
        
                    
             
        
        
        
 corresponding angles, therefore
 corresponding angles, therefore
m∠1 = m∠2 → m∠2 = 130°
 vertical angles, therefore
 vertical angles, therefore
m∠2 = m∠3 → m∠3 = 130°
If ∠1 and ∠2 are complementary, then m∠1 + m∠2 = 90°.
If ∠2 and ∠3 are complementary, then m∠2 + m∠3 = 90°
Therfore

 
        
             
        
        
        
Answer:
x^4 + 8x^3 + 15x^2
Step-by-step explanation:
 
        
             
        
        
        
18q+18=180
 -18. -18
18q=162
/18. /18
q=9
3q=27