Mari has a part time job. she earns $7 an hour. she makes at most $143.50 a week. what is the greatest number of hours she can work

Which is the equation of a line perpendicular to the line with the equation 3x+4y=8

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).

What is the distance between point a and b