The expected values of two television sets are predicted as follows. the function below models the expected value, in dollars, of television a afterx years f(x) = 100(- x + 4) the expected value, in dollarsof television b is initially $360 and decreases by $90 each year. let g(x) represent the expected value of television b afterx years . how does the graph ofg (x) compare to the graph off (x)?

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)