9. Which of the following relations are functions? Choose all that apply. Assume that each different variable (2 points) has a different value.
0{(2,6).(8.a),(6.0). (,d))
{(c, e),(c, d).(0,5)}
O{(6,6).(c, d),(d, C),(0,a)}
{(a, b).(6,c).(0,2).(d, e)}

Figure abcd is a parallelogram. if point c lies on the line x = 2, what is the y-value of point c?

To prove that def ~ gfh by the sss similarity theorem using the information provided in the diagram, it would be enough additional information to know that

The means and mean absolute deviations of the individual times of members on two 4x400-meter relay track teams are shown in the table below. means and mean absolute deviations of individual times of members of 4x400-meter relay track teams team a team b mean 59.32 s 59.1 s mean absolute deviation 1.5 s 245 what percent of team b's mean absolute deviation is the difference in the means? 9% 15% 25% 65%