He following sum 6+5n√⋅(5n)+6+10n√⋅(5n)+…+6+5nn√⋅(5n ) is a right riemann sum for the definite integral

Solve for x, y, and z. show all steps.

Which of the symbols correctly relates the two numbers below check all that apply 6? 6

Carl's candies has determined that a candy bar measuring 3 inches long has a z-score of +1 and a candy bar measuring 3.75 inches long has a z-score of +2. what is the standard deviation of the length of candy bars produced at carl's candies?