Find the exact area of a circle having the given circumference. 439)
A=
21390
0
41370
127
Pleas help in stuck

He that is measured at 220° is a reflex angle. the opposite angle is obtuse. find the measure of obtuse .

2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?

If you prove that ∆wxz is congruent to ∆yzx, which general statement best describes what you have proved?