Which of the following statements is true? A.
If all four sides of a rhombus are the same length, then it is a square.

B.
If all four sides of a rectangle are the same length, then it is a square.

C.
If all four angles of a rectangle have the same measure, then it is a square.

D.
If all four angles of a parallelogram have the same measure, then it is a square.

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)