Answer:
x= 90-60
x=30
Step-by-step explanation:
 
        
                    
             
        
        
        
(Y-Y1)/(X-X1)
(-9-(-29))/(7-15)
20/-8
-2 1/2
The slope is -2 1/2
        
             
        
        
        
Step-by-step explanation:

= 4
 .......
 
        
                    
             
        
        
        
Answer:
B
Step-by-step explanation:
solve equation.
 
        
             
        
        
        
(42 - 14sqrt2)/5 because rationalizing means getting the root out of the denominator, which is done by multiplying the denominator by a negative or positive root depending on the situation