Answer:
1/8
Step-by-step explanation:
 
        
                    
             
        
        
        
Without calculating, you can immediately see the absolute value sign, which implies that the final result (x) should be positive, not negative.  
 
        
             
        
        
        
The coefficient is the number next to the letter.
Although the x squared term has a coefficient of 1, it is not listed in the answer choices. However, the coefficient of the middle term 6x is listed.
Answer: 6
 
        
             
        
        
        
Answer:
21°
Step-by-step explanation:
the angles of triangle abc has to = 180 so subtract the known angles to get 21
angles bca and daf have to be the same so its 21