Given the lines ab and cd, what conclusion can be made about the relationship of the lines? be sure to include, in complete sentences, how the conclusion can be made. complete your work in the space provided or upload a file that can display math symbols if your work requires it.

7x+8y=-18, 4x-9y=-3 solve the system of equations

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).

Find the zeros of each function. f(x) = x^2 + 5x - 6