Answer:
x=11
Step-by-step explanation:
We know that  the angle is equal to 1/2 the difference of the long arc length between where the line segments touch the circle and the small  arc length where the line segments touch the circle
They long distance is 360 - (86+74) = 200
The small distance is 86
4x+13 = 1/2 ( 200  - 86)
4x+13 = 1/2 (114)
4x+13 = 57
Subtract 13 from each side
4x+13-13 = 57-13
4x= 44
Divide by 4
4x/4 = 44/4
x=11
 
        
             
        
        
        
Easily, you write the inverse of it without a minus
so if you were to find x^(-2) it would be (1/x)^2
The rest is all the same
        
             
        
        
        
Answer:
 (x) = 
Step-by-step explanation:
let y = f(x) , then rearrange making x the subject
y = 6x + 7 ( subtract 7 from both sides )
y - 7 = 6x ( divide both sides by 6 )
 = x
Change y back into terms of x with x = 
 (x) , then
 (x) = 
 
        
             
        
        
        
Answer:
g-4
Step-by-step explanation:
first subtract 7 from both sides 
then you will get -4
g
which is the same as g
-4 
you just have to switch them