You are hiking on a trail that leads down from the top of a mountain. At 11 A. M. You are at an elevation of 5400 feet. At 3 P. M. You are at an elevation of 3800 feet. What is your mean hourly change in elevation?

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)?

Graph y ≥ -x^2 - 1. click on the graph until the correct graph appears.

The total cost of anja’s trip to the dentist was $628.35. she paid a flat fee of $89.95 which included the checkup and cleaning and then had 4 cavities filled, each of which cost the same amount. which shows the correct equation and value of x, the cost of each cavity filling?