Answer:
A general  line can be represented as , y= m x + c
And general equation of circle is , ax²+by²+2 g x +2 f y +c=0
Now there are following possibilities
1. A line and circle have no common point of intersection, that is no solution.
2. A line may be a tangent to a circle, that is one common point, one solution.
3. A line may intersect a circle maximum at two points, that is 2 solution.
Image is depicted below.
 
        
                    
             
        
        
        
Answer:
because when two negatives are together they can't add 
Step-by-step explanation:
because when two negatives are together they can't add no matter if there's an addition sign
 
        
             
        
        
        
So the formula for the circumference of a circle is π x diameter
Since we know the the circumference already, we just divide that by π:
12π / π = 12
Now we halve the diameter to get the radius:
12 / 2 = 6 
The area of a circle is π x radius²
So the area is:
·π x 6² = 36π·  (or 113 not in terms of π) 
        
             
        
        
        
Answer:
195
Step-by-step explanation:
78/2*5