{{geomotry}}
i need ! my math grade depends on it! ; w;

The trigonometric ratios sine and secant are reciprocals of each other

You give a $4 tip for a meal that cost $22. approximately what percent of the bill was your tip?

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).