What is the sine ratio for ∠C?

Question 1 options:

13/12

12/13

5/12

13/5

12/5

What is the cos ratio for ∠C?

Question 2 options:

8/6

8/10

6/10

6/8

10/8

What is the domain of the given function? {(3,-2), (6, 1), (-1, 4), (5,9), (-4, 0); o {x | x= -4,-1, 3, 5, 6} o {yl y = -2,0, 1,4,9} o {x|x = -4,-2, -1,0, 1, 3, 4, 5, 6, 9} o y y = 4,-2, -1, 0, 1, 3, 4, 5, 6, 9}