All of the above can be used in order to prove a statement using coordinate methods.
        
             
        
        
        
The answer is 5.196152423
Since - x^2=27
 X=square root of 27
 =5.196152423
        
             
        
        
        
Answer:
$1.55
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
a = 14
Step-by-step explanation:
Given
9 + a = 23 ( subtract 9 from both sides )
a = 14