Disagree, the fractions are unequal and 10/15=66% while 15/20=75%
I think the answer would just be 12a because -9a? And +9a? Would cancel out and the -10 and +10 would cancel out so all that is left is the 12a
9514 1404 393
Answer:
45°
Step-by-step explanation:
Arc YZ is the difference between the given arcs and 360°:
126° +144° +YZ = 360°
YZ = 360° -270° = 90°
The inscribed angle (?) is half the measure of the arc it intercepts:
? = 90°/2
? = 45°
6 + 5 = 6 - (-5)
If you subtract a negative number from something, the two negatives cancel out.
Simple....
you have: |k+7|=3
|k+7|=3
-7 -7
|k|=-4
Now making it negative...
|k+7|=-3
-7 -7
|k|=-10
k=-4,10
Thus, your answer.
