Find the length of arch ab. leave your answer in terms of pi. circle contains the intercepted arch of 20 and angle of 27

The value of the expression 16-^3/4 8 1/8 -6 6 1/40 1/64

Divide. –40 ÷ –5 a –8 b 200 c -200 d 8

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