Where’s the model? If it says choose a model, there should be a model
        
                    
             
        
        
        
ANSWER

EXPLANATION
The expressions are 

and

The greatest common factor is the product the least powers of the common factors.

 
        
             
        
        
        
Answer:
<em>An </em><em>echo</em>
Step-by-step explanation:
................
 
        
                    
             
        
        
        
Answer:
x = 9
Step-by-step explanation:
Using the sine ratio in the right triangle and the exact value
sin45° =  , then
 , then
sin45° =  =
 =  =
 =  ( cross- multiply )
 ( cross- multiply )
x ×  = 9
 = 9 ( divide both sides by
 ( divide both sides by  )
 )
x = 9