Answer:
12
Step-by-step explanation:
Answer:
-1
Step-by-step explanation:
-2+(-1)÷3
-2-1÷3
-3÷3
-1
I believe by intersect, you mean perpendicular. Also, skew lines can be on parallel planes and still intersect. If they intersected, then the degrees must be 90
Answer:
#6:
A: 
Step-by-step explanation:
Points: (3, -5) and (-7, -1)
Slope Formula: 



Answer:
2
Step-by-step explanation:
it has 2 in the equation