What addition statement does this show?

a. -3.4 + 5.7 = -9.1
b. -3.4 + (-5.7) = -9.1
c. 3.4 + (-5.7) = -9.1
d. 3.4 + 5.7 = -9.1

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.

Solve for x and y a x= 13.3 y= 16.7 b x= 23.3 y= 12.5 c x= 7.5 y= 16.7 d x=7.5 y= 12.5

Which property was used to simplify the expression? 3c+9 +4c=3c+4c+9