Answer: B, x=20; angle measure is 30°.
Step-by-step explanation:
Opposite angles are always the same.
You can see that 30° and 3x are opposite angles therefore 3x=30°.
In algebra, when a letter and a number are next to each other, it means times.
So, 3x=30° means 3 times something equals 30.
And we know that 3×10=30 so, x=10.
Hope this helps :)
the answer is a concave decagon
Answer:
n = -4/7
Step-by-step explanation:
this is an easy question, you should learn how to do this with no help because you get into more complex questions with more variables.
ITS B. The range is the stuff in the right circle. So its 245
