Which trigonometric expression is to equal to the ratio 12/13 in the right triangle? A. tan X
B. cos X
C. tan W
D. cos W

The head librarian at the library of congress has asked her assistant for an interval estimate of the mean number of books checked out each day. the assistant provides the following interval estimate: from 740 to 920 books per day. what is an efficient, unbiased point estimate of the number of books checked out each day at the library of congress?

To describe a sequence of transformations that maps triangle abc onto triangle a"b"c", a student starts with a reflection over the x-axis.how should the student complete the sequence of transformations to map triangle abc onto triangle a"b"c"? plz

Which undefined geometric term is described as a location on a coordinate plane that is designed by an ordered pair (x,y) ?