The answer is 8.67 I think
        
                    
             
        
        
        
Answer:
Perpendicular = Y = 34.64 ft (Approx)
Base = X = 20 ft
Step-by-step explanation:
Given:
θ = 60°
Hypotenuse = 40 ft
Perpendicular = Y
Base = X
Find:
X and Y
Computation:
Sinθ = Perpendicular / Hypotenuse
Sin 60 = Y / 40
Perpendicular = Y = 34.64 ft (Approx)
Cosθ = base / Hypotenuse
cos 60 = X / 40
Base = X = 20 ft
 
        
             
        
        
        
Q = 16 
View the attached image for work!
 
        
        
        
(Can't really explain it... hopefully these steps can help you.. maybe I'm just too lazy..)
2h^3j^-3k^4
-----------------
 3jk
 2h^3k^4
= -------------
 3j^4k
 2h^3k^3
= --------------
 3j^4