Use the diagram shown to answer the question. 33°
y
19
Which expression represents the value of y?
A.
19
sin 33°
B.
19
cos 339
O C. 19 sin 33°
D. 19 cos 330

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?