Given the following diagram, find the missing measure.
m∠1 = 3x°, m∠2 = 4x°, m∠3 = 2x°, find x.
a. 10
b. 20
c. 30
d. 40

What is the probability of drawing three queens from a standard deck of cards, given that the first card drawn was a queen? assume that the cards are not replaced.

The first-serve percentage of a tennis player in a match is normally distributed with a standard deviation of 4.3%. if a sample of 15 random matches of the player is taken, the mean first-serve percentage is found to be 26.4%. what is the margin of error of the sample mean? a. 0.086% b. 0.533% c. 1.11% d. 2.22%

Find the missing factor. write your answer inexponential form.9^2=9^4×