Determine whether the sequence could be arithmetic. "yes" or "no".

28, 21, 15, 10, 6,

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.

[15 points, algebra 2]simplify the complex fraction and find the restrictions.

What is 1/3x5 on anuber line what does it look like on a number line