The ratio for 18 girls to 27 boys as a fraction is

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).

If the value of cos330°is√3/2 then find cos 165°.

The statement tan theta= -12/5, csc theta=-13/12, and the terminal point determained by theta is in quadrant two