25 points. Rq, can someone pls help? Won't take that long, just need a simple answer. Why does removing zero pairs in polynomials not change the value?

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.

Aflower has 26 chromosomes. to create a new flower,how many would a sperm cell have what is called?

Find the unit rate for: 75% high-fiber chimp food to 25% high -protein chimp food.