Write in simplest radical form 1/ x^-3/6 I understand the next step is 1/ 6√x^-3 but why is the next step:
1/ √x^-1 ?
Photo math is telling me to reduce the index of the radical and exponent with 3 but I'm not sure what that means.

Can someone me and do the problem plz so i can understand it more better

Which number produces a rationale number when multiplied by 1/5

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