A central angle measures 30 degrees and has an arc length of 20 inches. what is the radius of the circle

Need 50 will mark brainliest answer. find the lengths of all the sides and the measures of the angles.

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 your teacher tells you to do questions 6 through 19 in your math book for homework, how many questions is that