B is the correct answer 
hope this helps
        
             
        
        
        
Answer:
Your Answer is going to be C
 
        
             
        
        
        
Answer:
a-ii
b-iii
c-v
d-i
e-vi
please mark as brainliest
 
        
             
        
        
        
Answer:
 and
  and   
Step-by-step explanation:
Recall that  is a value of the function cosine for the special angles:
 is a value of the function cosine for the special angles:  and
 and   , then:
, then:

 
        
             
        
        
        
Perpendicular slopes multiply to -1, so are <em>negative reciprocals.</em>
-1 / -3 = 1/3
Answer: B.  1/3