Gasoline is used as fuel that allows cars to move. in order for the gasoline to have any effect on a car, the gasoline has to go through a chemical reaction that causes energy stored in it to be converted into a different type of energy.

arrange the tiles below to correctly show the sequence in which energy is converted to allow a gasoline-powered car to move.

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)