1. in a survey sample of 83 respondents, about 30.1 percent of the sample work less than 40 hours per week. calculate a 68 percent confidence interval for the proportion of persons who work less than 40 hours per week.

If the scale factor between two circles is 2x/5y what is the ratio of their areas?

Common binomial factor of 6x(3x+7)+5(3x+7)

If you were constructing a triangular frame, and you had wood in the length of 4inches, 4 inches, and 7 inches, would it make a triangle? would you be able to create a frame from these pieces of wood? yes or no. explain your mathematical thinking