Answer:
-11/12
Step-by-step explanation:
 
        
             
        
        
        
Letter D
1-sin^2(x) = cos^2(x)
= sin^2(x)/cos^2(x)
= tan^2(x)
        
             
        
        
        
15, because angle L and N are equal, 3x=x+10 so x=5, plugging it in, we get that MN is 15
        
                    
             
        
        
        
Answer:
-72
Step-by-step explanation:
Substitute -4 in the equation
h(-4) = -20 + 13(-4)
h(-4) = -20 + -52
h(-4) = -72
-72 is the final answer