Pls my friend and i are working on this and we need .

If sec theta = 5/3 and the terminal point determined by theta is in quadrant 4, then

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?

The suare root of 9x plus 7 plus the square rot of 2x equall to 7