Subtract: (7x2 + 2x – 3) – (4x2 – 3x + 1) Question 7 options: A) 3x2 + 5x – 4 B) 3x2 + 5x + 4 C) 3x2 – 5x – 4 D) 3x2 + 5x – 2

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.

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.

Due to a packaging error, 4 cans labeled diet soda were accidentally filled with regular soda and placed in a 12 pack carton of diet soda. two cans were randomly selected from this 12 pack. what is the probability that both cans were regular soda?