Oh my god im borred lets chat about anything

If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=

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).

Credit card a offers an introductory apr of 3.4% for the first three months and standard apr of 15.7% thereafter,