Answer:
its b
Step-by-step explanation:
i did this
 
        
                    
             
        
        
        
Cos(39) + x/17 
x = 17cos(39) 
x = 13.2<span>1148134</span>
        
             
        
        
        
Answer:
x=-6
Step-by-step explanation:
2x+y=-4
5x+3y=-6
solve :
multiply first equation by 3
6x+3y=-12
5x+3y=-6
subtract the two equations : 6x+3y-5x-3y=-12-(-6)
x=-12+6
x=-6
 
        
                    
             
        
        
        
This is an equation in STANDARD form for a circle:
(x-h)^2 + (y-k)^2 = r^2
The values of (h, k) are the center point of the circle. When they are put into an equation, their symbols flip as in, if they are positive on a graph, they become negative in the equation and vice versa. 
The value (r) is the radius and is squared in the equation. In this case, the square root of 1 is 1. 
(x)^2 + (y-6)^2 = 1