An engineer wishes to determine the width of a particular electronic component. If she knows that the standard deviation is 1.3 mm, how many of these components should she consider to be 80% sure of knowing the mean will be within ± 0.1 mm

Find the solution to this system 2,1 1,-2 1,2 -1,2

2pointswhat is the best next step in the construction of the perpendicular bisector ofab?

Out of the 180 students at a summer camp, 72 signed up for canoeing. there were 23 students who signed up for trekking, and 13 of those students also signed up for canoeing. use a two-way table to organize the information and answer the following question: approximately what percentage of students signed up for neither canoeing nor trekking? 72% 40% 54% 98%