A control chart is used to monitor a process mean by collecting sample means from that process on a regularly scheduled basis. The horizontal or "X" axis on this chart will represent the mean value of the sample while the vertical or "Y" axis will represent time measured in hours, days or weeks.
O True
O False

Two planes leave an airport at the same time, one flying east, the other flying west. the eastbound plane travels 20 mph slower. they are 1600 mi apart after 2 hr. find the speed of each plane.

Barney & noblet customers can choose to purchase a membership for $25 per year members receive 10% off all store purchases 1. how much would a member pay per year if he bought $50 worth of items each year? 2. write a slope-intercept equation that expresses how much a member pays per year using x to represent his purchases per year 3. how much would a member have to spend per year to pay off his membership fee?

Mackenzie needs to determine whether the rectangles are proportional. which process could she use? check all that apply.