Equation in two variables . find the ordered pair whose x coordinate is 1/2

If x = -2, then x 2-7x+10 equals a. 0 b.20 c.28

The measure of an angle is 117°. what is the measure of a supplementary angle?

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).