R+5=3r+7
-5 -5
r=3r+2
-3r -3r
-2r=2
÷-2 ÷-2
r=-1
Answer:
C
Step-by-step explanation:
∠ 4 and ∠ 8 are corresponding angles
Each is in the same position (the lower left angle ) in its group of 4 angles.
Answer:

Step-by-step explanation:
x^-12/ x^-7
= x^(-12-(-7))
= x^-5
= 1/x^5
First you get "y" by itself. To do so you divide 2 on both sides.
y = 3/2x + 5
To write an equation of a line that is PARALLEL to this equation, the slopes have to be the SAME. So the slope is 3/2.
You then use the equation:
y = mx + b
SInce you know "m" you plug it in.
y = 3/2x + b
Now you need to find b. To do so you plug in the point (2, -5) into this equation.
-5 = 3/2(2) + b
-5 = 3 + b
-8 = b
Finally you plug in b and you get your new equation.
y = 3/2x - 8
first you put this equation into y=mx+b form then you look at the slope of the equation. if both of the slopes are same then its parallel.