The price of a gallon of unleaded gas was $2.85 yesterday. today, the price fell to $2.80. find the percentage decrease

Evaluate cos2θ for cosθ = square root of 3/2

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).

Find the value of x. give reasons to justify your solutions! c ∈ ae