A jar contains 2 blue cubes, 5 blue spheres, 2 green cubes, and 5 green spheres. If you select an object at random, what if the probability that the object is green or a cube? A. 5/14
B. 11/14
C. 1/7
D. 9/14​

The circle below is centered at the point (3, 1) and has a radius of length 2. what is the equation?

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)

Gables properties corp. is leasing office building with an area of 49b^2+70b+25. what is the shape of the building? a) rectangle b) square