*, i used all my points for this* -label and display a polynomial identity -prove that it is true through an algebraic proof, identifying each step -demonstrate that your polynomial identity works on numerical relationships

Which equation represents the function on the graph?

If a || b and e || f , what if the value of y ?

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)