Answer:
A. 50°
Step-by-step explanation:
The external angle ACB created by tangents CA and CB is the supplement of arc AB it intercepts.
∠ACB = 180° -AB
∠ACB = 180° -130°
∠ACB = 50°
Answer:
3
4
2
1
Step-by-step explanation
3.2x+5.7=2.5x. X=-8.142857
10.1x-1.6x+44=-7 x=-6
7.9x+x+4=1.1x-16 x=-2.564103
1/4x+5/2x-2=4-1/4x x=2
You probably mean either

or

Write 8 = 2³, so that in the first interpretation,

and in the second,

Then in the first interpretation, we have

Otherwise, the second interpretation gives
