What I Can Do Did you know that the tire of a car touches the road at a point when running? Or in other words, a tire is tangent on the road. What do you think is the reason?Can you cite 5 other situations where tangent line or secant line is applied around us?

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)