Atividade de Geometria (matemática respondam pfr

You receive 15% of the profit from a car wash how much money do you receive from a profit of 300

What are the solutions of the system? solve by graphing. y = -x^2 -6x - 7 y = 2

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)