Answer:
60°
Step-by-step explanation:
x + 160° + 140° = 360°
x + 300° = 360°
x = 360° - 300°
x = 60°
Idk...........................................................................................
Answer:
<h2>YES. These points are collinear.</h2>
Step-by-step explanation:
If three points are collinear, then the slopes are the same.
The formula of a slope:

For (0, -10) and (-3, -13):

For (-3, -13) and (2, -8):

We can check the last pair (0, -10) and (2, -8):

Let

. Then

, and differentiating both sides with respect to

gives


Now, when

, you get

You have

, so

and

. So