Trieste's Decent was a change in depth -3 feet per second. We can use the realationship y=-3x to model this, where y is the depth in feet where y is the depth in feet and x is the time in sconds. using this model, how much time would the trieste take to reach the bottom

The weight of full–grown tomatoes at a farm is modeled by a normal distribution with a standard deviation of 18.4 grams. the 95 percent confidence interval for the mean weight of the tomatoes is calculated using a sample of 100 tomatoes. what is the margin of error (half the width of the confidence interval)?

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?

Given sin28.4=.4756, cos28.4=.8796, and tan28.4=.5407 find the cot of 61.6