The students' scores on a standardized test with a normal distribution have a mean of 500 and a
standard deviation of 40. What percent of the
students scored between 420 and 580?

A3-dimensional figure has a square base and 4 lateral faces that meet at a point. explain the difference between the cross sections when a slice is made perpendicular to the base through the vertex, and when a slice is made perpendicular to the base and not through the vertex

Select the graph of the solution. click until the correct graph appears. |x| = 3

What is r i 4.5+10r=-6.5 with work pls