Answer:
Step-by-step explanation:
The general equation of a circle is , x² + y² + 2gx + 2fy + c = 0
Substituting the three points we get the following equations,
2g +14f +c=-50
14g - 2f + c =-50
16g +12f + c = -100 
Solving these equations we get,
g =-4, f = -3, c = 0
Hence general equation of circle is,
x² + y² - 8x - 6y  = 0
 
        
             
        
        
        
I'm not at my desk and can't check it out right now.
But I think you should try  10  and  -42 .
        
             
        
        
        
1. Answer is 14. 
you first do 8x6 cause of BEDMAS, which is 48. then subtract 12, which gives you 36. then subtract 36 from 50 because 50 is the total amount it should be on both sides. 
50 - 36 = 14
2. Answer is 8
5x3 is 15, + 2 is 17. then 20 - 17 gives you 3. you then have 24 divided by a number, and that number is 8 because 24 divided by 8 gives you three
        
             
        
        
        
Answer:
f(-6)= -4
Step-by-step explanation:
f(x)=8+2x for f(-6)
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x= -6 
substitute: 8+2(-6) 
simplify using PEMDAS: 8+ (-12) 
simplify using PEMDAS: -4