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Once again it's (2a,0) I took this and got it right
Answer:
The slope is undefined
Step-by-step explanation:
Find slope by using the slope formula, 
Use the given points and insert the x's and y's to solve for slope
(-7, -7) (-7, 1)
m = undefined
The slope for the given point is undefined because it is impossible to divide a number by 0
Answer:
x=20
Step-by-step explanation:
Both Angles have the same value, as they are opposite angels.
Set your formula up as
5x+20=3x+60
5x=3x+60-20
2x=40
x=40/2
x=20
Answer:
s = 3x - (1/2)y
Step-by-step explanation:
The perimeter of a square is 4s, where s is the side length. Here,
12x - 2y = 4s, and so s = 3x - (1/2)y
