Answer:
the equation as intercept form is
y = 3x + 5
 
        
                    
             
        
        
        
Answer:
The median
Step-by-step explanation:
It uses all the added numbers as one
 
        
             
        
        
        
Answer:  -a2 - 2ab - b2 + 25  = 
  -1 • (a2 + 2ab + b2 - 25) 
Final result :
  -a2 - 2ab - b2 + 25
Step-by-step explanation:
 
        
             
        
        
        
Answer:
(7,2)
Step-by-step explanation:
x + y = 9 + 2x - 3y = 8 is really two equations, and you should show this by separating x + y = 9 from 2x - 3y = 8 through the use of a comma, or the word "and," or through writing only one equation per line.
Here you have the system of linear equations
  x +   y =  9
 2x - 3y = 8.
Let's solve this system by elimination.  Mult. the 1st eqn by 3, obtaining the system
3x + 3y = 27
2x - 3y =    8
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 5x = 35, so that x = 7.  Subbing 7 for x in x + y = 9, we get 7 + y = 9, indicating that y = 2. 
Thus, the solution to this system of equations is (7,2).