Answer:
(-4,16)
Step-by-step explanation:
1/2x+18=5/2+26
1/2x=5/2x+8
-2=8 divided by -2
Equals x=-4
Plug in -4 in one of the equations
1/2(-4)=18= 16
False, you would just divide 20 by -4 to get the answer.
Check the picture below.
make sure your calculator is in Degree mode.
No. If no right angle exists, then it's not a rectangle.