Circle X is shown in the diagram.
Which equation can be used to solve for m 21?
Om21= {(a−b)
O m21= {(a + b)
m21 = {(0-0)
0 m21= {(c + 0)

Can someone pls ! pls answer all. no explanation needed..

17. a researcher measures three variables, x, y, and z for each individual in a sample of n = 20. the pearson correlations for this sample are rxy = 0.6, rxz = 0.4, and ryz = 0.7. a. find the partial correlation between x and y, holding z constant. b. find the partial correlation between x and z, holding y constant. (hint: simply switch the labels for the variables y and z to correspond with the labels in the equation.) gravetter, frederick j. statistics for the behavioral sciences (p. 526). cengage learning. kindle edition.

Do you mind if you guys me with this question i’m on number 8