because 4x+20y=-36,so ( 4x+20y)/2=2x+10y=-18
(2x+10y)-(2x+5y)=-18-18
5y=-36
then y=-7.2
because 2x=18-5y
so x=(18-5y)/2=(18-5*(-7.2)）/2=27
Answer: D) Adding heat to the reaction
Answer:
Each line segment joining a vertex of ABCD to the corresponding vertex in the image is perpendicular to the line of reflection, EF. That is, the lines intersect at a 90 degree angle.
Answer
x= -3 -> y= -2
x= -1 -> y= -4
x= 3 -> y= -2
Step-by-step explanation:
The lines around the x in the equation is the absolute value symbol.
If you put a positive in, it stays positive.
If you put a negative in, it becomes positive.
Then solve normally.
Good luck!
