How can x2 = 2x + 4 be set up as a system of equations? (1 point) a y = x2 − 2x + 4 y = x2 + 2x + 4 b y = x2 y = x2 + 2x + 4 c y = x2 + 2x y = x2 + 4 d y = x2 y = 2x + 4

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.

Describe the end behavior of the function below. f(x)=(2/3)^x-2 a. as x increases, f(x) approaches infinity. b. as x decreases, f(x) approaches 2. c. as x increases, f(x) approaches -2. d. as x decreases, f(x) approaches negative infinity.

For the feasibility region shown below find the maximum value of the function p=3x+2y