Answer:
40%
Step-by-step explanation:
make 20*5=100 , total, 8*5 which makes 40
 
        
                    
             
        
        
        
Answer:

Step-by-step explanation:

 
        
                    
             
        
        
        
Answer:
<h2>The x-coordinate after the rotation is -10.</h2>
Step-by-step explanation:
A 810° rotation is equal to a 90° rotation. So, the transformation described gives the same result than rotating 90° only.
A 90° counterclockwise rotation is defined by the rule

The given coordinate is  . Using the rule, we have
. Using the rule, we have

Therefore, the x-coordinate after the rotation is -10.
 
        
             
        
        
        
Yo sup??
The given points are (1,1),(1,3) and (9,2)
equation of circle is 
8x²+8y²+ax+by=0
let us plug in (1,1) in the equation we get
8+8+a+b=0
a+b=-16
let us now plug in (1,3) in the equation
8+8*3²+a+3b=0
a+3b=-80
let us. now solve the two equation in terms of a and b
we get
2b=--64
b=-32
and 
a=-16+32
=16
therefore the equation is
8x²+8y²+16x-32y=0
Hope this helps