In the cylinder below, the radius, r, is 5 m, and the volume is 200 m3. What is the altitude of the cylinder?

A.
4 m
B.
13 m
C.
16 m
D.
8 m

The mean of a set of data is -3.82 and its standard deviation is 2.31. find the z score for a value of 3.99.

Tiffany drives 285,120 feet before lunch and 628,320 feet after lunch. about how many kilometers does she drive all together

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?