Compute the standard deviation for the set of data 2, 5, 6, 8, 14

Identify the number 127 as a rational or irrational. explain

Solve this problem! extra ! 3025/5.5 = a/90.75

Look at the figure below: triangle abc is a right triangle with angle abc equal to 90 degrees. the length of ac is 5 units and the length of ab is 4 units. d is a point above c. triangle adc is a right triangle with angle dac equal to 90 degrees and dc parallel to ab. what is the length, in units, of segment cd?