The sum would be Zero
ex. 2+(-2)=0
1+(-1)=0
16=(-16)=0
100+(-100)=0
Answer:
we should take common first
3n+12
taking 3 common
3(n+4)
I’m also struggling with that but it’s the perimeter of a right triangle
Answer:
Perpendicular
Step-by-step explanation:
If you look at the image, it shows a rectangular prism. The line CD is next to the line AD. It is perpendicular because someone could draw a right angle where the lines CD and AD meet.
I Hope That This Helps! :)