there are usually 365 days in each year. Every 4th year is called a leap year and has one extra day in February. How many days are there in 8 years of their two of the years are leap years?

The parabola x= √y-9 opens: a.)up b.)down c.)right d.)left

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)

What is the absolute value of the complex number -4- 2 v14 3.15 14 18