Find all six trig ratios for the ordered pairs:

a. (2,-5)

b. (-9,-12)

Apublic library wants to place 4 magazines and 9 books on each display shelf. the expressions 4s +9s represents the total number of items that will be displayed on s shelves. simplify this expression

Issof claims that the scale factor is 1/2. which statement about his claim is correct

If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=