Task 2: Estimate the length of the line segment to the nearest tenth of a unit (each grid square is 1 square unit). 3. What is the exact length of the segment?

Astudent simplified a rational expression as shown.

Hi, can anyone show me how to do this problem? 100 points for this. in advance

Atextile fiber manufacturer is investigating a new drapery yarn, which the company claims has a mean thread elongation of 12 kilograms with a standard deviation of 0.5 kilograms. the company wishes to test the hypothesis upper h subscript 0 baseline colon mu equals 12 against upper h subscript 1 baseline colon mu less-than 12 using a random sample of n equals 4 specimens. calculate the p-value if the observed statistic is x overbar equals 11.8. round your final answer to five decimal places (e.g. 98.76543).