Answer:

Step-by-step explanation:
The formula of a slope:

We have the points (1, -1) and (6, 2).
Substitute:

Answer:
0, x+1, 0, 0
Step-by-step explanation:
If a•b= 0 and a cannot be 0 then b has to equal 0
3(5-5)(5+2)=0
3(-2-5)(-2+2)=0
x = 109°
3*180° - 100° - 102° - 108° - 121° = 109°
Answer:
6
Step-by-step explanation:
(-1^2 + -1-2) / (2*-1^2 + -2-3)
1 + -3 / 2 + -5
-2 / -3
= 6
Check the picture below, notice those three quadrilaterals, bearing in mind that a square and rhombus both have equal sides all around.