Answer:

OK, lets start by drawing a basic graph (the first one) so we can visualize.
We already know that the y coordinate of the circle's center is  .
. 
We know that the circle is tangent to the  axis at
 axis at 
That means the x coordinate of the center has to be  , as the tangent is a point on the edge of the circle that touches a line at exactly one point.
, as the tangent is a point on the edge of the circle that touches a line at exactly one point.
The radius is the distance from the center of the circle to its edge. We know the center's location now, it is  and a point on the edge of the circle (the tangent point) which is
 and a point on the edge of the circle (the tangent point) which is  . so the distance between the points is 4 which is the radius (you can use the distance formula, but it's quite oblivious.)
. so the distance between the points is 4 which is the radius (you can use the distance formula, but it's quite oblivious.) 
We can imagine the circle should look like this (the second one):
Now we can piece together an equation
The equation of a circle is  where
 where  is the center and
 is the center and  is the radius. When we put the numbers in: we get
 is the radius. When we put the numbers in: we get  which can be simplified into
 which can be simplified into  which is the answer.
 which is the answer.
Step-by-step explanation:
 
        
             
        
        
        
Answer:
I think it's AB=BC.
Step-by-step explanation:
*I'm not in college, nor anywhere near college-level math, just a heads-up.*
Anyway, here's what I think. I turned my head around a bit to different angles, and I noticed the angle AB is the exact same length as BC, and both make the triangle a right angle. Try it if ya want, and see what happens. Sorry if this's wrong. I do hope it helps!
 
        
                    
             
        
        
        
Answer:
90% of people marry there 7th grade love. since u have read this, u will be told good news tonight. if u don't pass this on nine comments your worst week starts now this isn't fake. apparently if u copy and paste this on ten comments in the next ten minutes you will have the best day of your life tomorrow. you will either get kissed or asked out in the next 53 minutes someone will say i love you
Step-by-step explanation:
 
        
             
        
        
        
Answer:
The answer to the question provided is  .
.
.
Step-by-step explanation:
☆Happy to help!
 
        
                    
             
        
        
        
Answer:
wefew
Step-by-step explanation:
awhefiuLLLESoagFVRESESGREGESRGSAERG$W$EG$%agwafer