A line passes through (1,-6) and (6,9). Which equation represents the line? O A.3y= X+9
O B. y = 3x - 9
OC. y - 9 – 3x = 0
OD. Y + 9 =x

Anormally distributed data set has a mean of 176.3 and a standard deviation of 4.2. what is the approximate z-score for the data value of 167.9? 2.00 −2.00 8.4 −8.4

Atriangle has a side lengths of 18cm, 80 cm and 81cm. classify it as acute obtuse or right?

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).