Answer:
-19a^2-6a+2
Step-by-step explanation:
You can't combine -19a^2 and -6a because they don't have like bases one is a^2 and the other is a.
If the 3 points are collinear, then the slopes of all line segments connecting the points are the same.
Thus,
-6 - (-8) 2
m = ------------- = -------- = -1/2
-7 - (-3) -4
Then the following must be true:
4-(-6) 10
-1/2 = ------------ = ---------
c - (-7) c + 7
Cross multiplying, -(c+7) = 20, and c+7 = -20, so that c = -27
I believe the answer would be 6:5 because you divide both 18 and 15 by 3.
Answer:
The temperature decreased by 32 degrees.
Step-by-step explanation:
