Four expressions are shown below: a. 4(8x + 2) b. 4(7x + 3) c. 32x + 8 d. 28x + 12 which two expressions are equivalent to 4(7x + 2 + x)? 1. a and b 2. b and c 3. a and d 4. a and c

Emma will roll two number cubes labeled 1 through 6. she will record the sum of the two numbers after each roll. she will roll the two cubes 540 times. how many times should emma expect the sum to equal 5?

On a piece of paper, graph y< x+1. then determine which answer matches the graph you drew.

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.