The measurement of a central angle is 9= 240°. Find the measurement of a in radians. A.
A= - radians
WIN
B.
6
A= - 7 radians
5
C.
4
A= -1 radians
3
D.
A= - 7 radians
00 m
3

Find the given elements if matrix d:

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.

Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15