bottom. A net of a square pyramid has a square base with side lengths of 4 feet, and 4 triangular sides with heights of 3 feet. How many faces will she need to consider when deciding the amount of shingles to buy for the roof? faces

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?

Acd that is originally priced at $15.85 red-tagged for the sale. what is the sale price of the cd

Anew test for ra is being developed. the test is administered to 750 patients with ra and 750 without ra. for the sake of the question, assume the prevalence of ra in this population is 50%. of the 750 patients with ra, 575 have a positive result. of the 750 patients without ra, 150 have a positive result. what is the positive predictive value of the new test? a575/(575+150) b. 600/(600+ 150) c. 575/(575+125) d. 600/(600+ 125)