How is the pattern for a perfect square trinomial used to factor the trinomial?

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.

What are the solutions of the system? solve by graphing. y = -x^2 -6x - 7 y = 2

Order the measurements from the least to the greatest. 2,720 ml , 24.91 l , 0.0268 kl