LLLSS help It's due today Select the correct solution for the expression.

2/5+3/8 A.2/5+3/8=5/13 B.16/40+15/40=31/40 C.10/40+24/40=34/40 D.2/5+3/8=6/40

The length of triangle base is 26. a line, which is parallel to the base divides the triangle into two equal area parts. find the length of the segment between triangle legs.

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)

Two terms in a geometric sequence are a5=15 and a6=1 what is the recursive rule that describes the sequence?