7/x^3+4x+4, 5/4-x^2
The LCD is

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?

Ihonestly have no clue if it's each or none.

Consider the first four terms of the sequence below. what is the 8th term of this sequence?