Simplify.
(6x- 5+ 4x²) + (2x-2)
O 12x^2-7
O 4x^2+4x-3
O 4x^2 +8x-7
O 4x^2+ 8x +3

Complete the solution of the equation. find the value of y when x equals to 28 x+3y=28

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 60.9643790503 to 5 decimal