What rational number would u put infront of -(-4.2) to make the answer negative like u have to put a retinol number infront of the -(-4.2)

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).

Which of the following points is a solution to the system of equations shown? y - x = -1 x + y = -5

Apply distributive property to write equivalent equation 105×35m