A is half of the arc angle 108 so a = 54.
b is half of the arc angle 60 so b = 30.
c is identical to the angle that's missing from the triangle with a and b in it.
so, a + b + c = 180
54+60+c = 180
c = 180-54-60 = 66
Answer:
its irrational because it doesn't terminate or repeat
Step-by-step explanation:
the square root of 5 is 2.2360679775
Answer:
I think the answer is C
Step-by-step explanation: It could also be B
but then again it could be
Answer: The first and second options are random samples.
First, assign numbers and drawing the number from a bowl would be a great way to get a random sample. Everyone has the same chance of being selected.
Second, using an alphabetical order is just like the first choice. The chances are the same for everyone.
However, in the third choice, you won't get a random sample. You will get an old and young group. Not a random group of the population.
