1. controle if no numbers are missing and the numbers are in the right order
2. the formula is x-a so a=1
3. write everything out in the scheme
4. let the first number drop down
5. multiply the answers by a 
6. add the number that are under each other 
7. repeat 5 and 6 until to you're done
8. write down the equation
9. last number in the scheme is your residue, which means that you write it at the end, outside of the ()
 
        
             
        
        
        
Step-by-step explanation: 
Combine like terms: 40 + 60 = 100 2x = 100 Divide each side by '2'. x = 50 Simplifying x = 50.
 
        
             
        
        
        
Answer:
The answer is 

Step-by-step explanation:
I am a math teacher If you need any explanation you can communicate with me on Whats on this number +201557831028 
 
        
                    
             
        
        
        
Five times five equals twenty five!!
25 <<<<< THERE IS YOUR ANSWER! 
Have a nice day!
~Brooke❤️
        
                    
             
        
        
        
Answer:
(x + 5)^2 + (y + 8)^2 = 6^2
Step-by-step explanation:
A circle formula: (x - h)^2 + (y - k)^2 = r^2
We are given diameter. To find the radius divide diameter by 2.
d = 12
12/2 = r = 6
H and K are given to be (-5 , -8)
(x - (-5))^2 + (y - (-8))^2 = 6^2
(x + 5)^2 + (y + 8)^2 = 6^2
I have plot this equation to confirm my answer is correct where the origin is (-5 , -8) and has a radius of 6.