Is 5(3x +4) equivalent to 15x + 20 ?

Which expression is equivalent to 4 square root 6 divided by 3 root 2

The larger of two number is 4 less than twice the smaller number. the sum is 41. find the numbers

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.