find the volume V of the solid obtained by rotating the region bounded by the given curves about the specified line. y=9x^6, y=9x, x≥0.

He concluded that a heavier object dropped from the same height as a lighter object will land

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?

Afamily went out to dinner and their bill was $113.if they want to leave a 19% tip, how much should they leave.