Answer:
Answers C and D are proably missing the y term.  I'll assume they are:
C. (x-4)² + (y-1)² = 9
D. (x-4)² + (y-1)² = 3
A, is the equation that produces the drawn circle.
Step-by-step explanation:
See the attached image for explanation.
 
        
             
        
        
        
Answer:
=》Area = 180 sq.yd
Step-by-step explanation:
perimeter = 2l + 2b 
where, we have l = 15 
- so (2×15) + 2b = 54
- 30 + 2b = 54
- 2b = 24
- b = 12
now, Area = l × b = 12 × 15 = 180 sq.yd
 
        
                    
             
        
        
        
Substitution:
2x + (6(1/2x - 6)) = 19
2x + 3x - 36 = 19
5x - 36 = 19
+ 36
5x = 55
÷ 5
x = 11
y = (1/2 × 11) - 6
y = 5.5 - 6
y = -0.5
Elimination:
y = 1/2x - 6
- y
0 = 1/2x - 6 - y
+ 6
1/2x - y = 6
3x - 6y = 36
2x + 6y = 19
(add)
5x = 55
÷ 5
x = 11
y = (1/2 × 11) - 6
y = 5.5 - 6
y = -0.5
I hope this helps! Let me know if you need me to explain why I did some things :)
        
             
        
        
        
Answer:
1 I think but you said they all have the same area
 
        
                    
             
        
        
        
Same girl oh my god it won’t let me ask anymore questions. Not my fault my math teacher gave me 30 questions to ask