Which relation is not a function?

A. {(9,3),(5,16),(6,8),(9,10),(11,13),(1,7)}

Explanation:

The first option is not a function because a single x-value cannot pair up to more than one y-value. We can see this occur in the ordered pairs below.

(9,3),(9,10)

okay..i will pick 8!

answer would be 8.64 or s = 11π/4 inches

step-by-step explanation:

s = r θ  

where s = arc length  

r = radius = 3 inches  

θ = central angle in radians = ( π /180)*165  

s = 3(π/180)*165  

= 8.64 inches