D because you need to make the denominators have a common multiple.
        
             
        
        
        
Answer:
The inverse of f(x) is  
Step-by-step explanation:
To find the inverse of the function  , perform the following steps:
, perform the following steps:
1) do  

2) Solve the equation for the variable x.


3) exchange the variable x with the variable y
 ---->
 ----> 
4) Change the variable y by 
Finally the inverse function is:
 
 
        
             
        
        
        
Answer:
17.5 in
Step-by-step explanation:
Step one:
given
The perimeter of a rectangle is 53 inches
let the two shorter sides be the width w
so w+w= 18in
the two longer sides is L
L+L=2l
Step two:
but the expression for the perimeter of a rectangle is
P=2W+2L
53= 18+2L
53-18=2L
35=2L
divide both sides by 1
L=35/2
L=17.5
 
        
             
        
        
        
1/2 of 3/4 means 1/2 × 3/4 which equals to 3/8
        
                    
             
        
        
        
The right answer is letter B).