Answer:
x= -10
Step-by-step explanation:
The equation is y2-y1 over x2 over x1 so 
1-(-2) over -9-(x)=3
1+2=3 over -9-(x)
3/-9-x   times -9-x  = 3  times -9-x
3=3(-9-x)
3=-27-3x
3+27=-3x
30= -3x
-10= 3x
hope it helps man!!! :)
ps may i have brainliest so i can level up 
  
        
             
        
        
        
Answer:
5/32
Step-by-step explanation:
If a coin if flipped five times with four heads, then it has exactly one tail. The number of way to arrange four heads and one tail are as follows:
T H H H H
H T H H H
H H T H H
H H H T H
H H H H T
Essentially, there are five way because there are five "positions" where the tail could be.
Then, you need to find the total amount of possibilities for flipping a coin five times. Every time you flip it, there are two possibilities- heads and tails. Therefore, for five flips, the total amount of possibilities is
2x2x2x2x2 = 32
You know that 
probability= # of desired outcome
                    ----------------------------------   
                       # of total outcomes
So the probablity is 5/32.
 
        
             
        
        
        
No, a line of symmetry should cut the shape or object in half and represent a perfect mirror image.