Write down how many invariant points there are on the perimeter of the square when OABC is rotated 90 degrees clockwise centre 3’3

In the 30-60-90 triangle below side s has a length of and side r has a length

Whats the name of the vertical axis

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.