The answer is -3.
If we add positive one/+1 to negative four/-4, we subtract +1 from -4, giving us -3.
Answer:
I'm not sure about "11" but 12. is "by the definition of right angles", and 16. is "by the SAS(side angle side) congruency theorem"
Answer:
31/40
Step-by-step explanation:
3/8=15/40
2/5=16/40
15/40+16/40=31/40
Answer:
Vertical angles are pair of angles made by intersecting two lines .
Step-by-step explanation:
In the image below a° and b° are vertical angles. "Vertical" refers to the vertex (where they cross), NOT up/down