Amanhole cover has a diameter of 3 ft. it weighs 8.2 pounds per square foot. how much does the manhole cover weigh?

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

What is the solution of the equation? 35√(x+2)3+3=27

Suppose the equation ||x-a|-b|=2008 has 3 distinct real roots and a not =0. find the value of b.