Aa rectangular parking lot has a length that is 15 yards greater than the width. the area of the parking lot is 450 square yards find the length and the width

Evaluate each expression. determine if the final simplified form of the expression is positive or negative -42 (-4)2 42

What is the slope of (0,32) and (100,212)

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)