A.
Use technology to plot the graph.
Here it is using wolframalpha.com.
http://www.wolframalpha.com/input/?i=y+%3D+-5;+y+%3D+3x+-+2+for+-2%3C%3Dx%3C%3D2
B.
The solution is where the graphs of the lines intersect. It is at point (-1, -5).
C.
y = -5
y = 3x - 2
-5 = 3x - 2
3x = -3
x = -1
The solution is (-1, -5) which is the same as with the graph.
Let the "other" angle be x. Then we can set up the equation: 2x + 60 + x = 180, because supplementary means that the angles add up to 180 degrees.
We get:
3x + 60 = 180
3x = 120
x = 40.
2(40) + 60 = 80 + 60 = 140.
So one angle is 140 degrees and the other angle is 40 degrees.
---
Hope this helps!
==jding713==
Answer:
1398.4272
Step-by-step explanation:
Answer:
=x+2
Step-by-step explanation:
2(x+2)−(x+2)
Distribute the Negative Sign:
=2(x+2)+−1(x+2)
=2(x+2)+−1x+(−1)(2)
=2(x+2)+−x+−2
Distribute:
=(2)(x)+(2)(2)+−x+−2
=2x+4+−x+−2
Combine Like Terms:
=2x+4+−x+−2
=(2x+−x)+(4+−2)
=x+2
Answer:
=x+2
