ASAP Which values for A and B will create infinitely many solutions for this system of equations? 4 x minus A y = 15. Negative 4 x + 6 y = B. A = negative 6, B = 15 A = 6, B = 15 A = 6, B = negative 15 A = negative 6, B = negative 15

If your score on your next statistics test is converted to a z score, which of these z scores would you prefer: minus2.00, minus1.00, 0, 1.00, 2.00? why? a. the z score of 2.00 is most preferable because it is 2.00 standard deviations above the mean and would correspond to the highest of the five different possible test scores. b. the z score of 0 is most preferable because it corresponds to a test score equal to the mean. c. the z score of minus2.00 is most preferable because it is 2.00 standard deviations below the mean and would correspond to the highest of the five different possible test scores. d. the z score of minus1.00 is most preferable because it is 1.00 standard deviation below the mean and would correspond to an above average