o'keith company purchased a mine on january 1, 2018, for $ 522 comma 000. the mine is estimated to contain 40 comma 000 tons of iron ore. there is no residual value. the business extracted and sold 15 comma 500 tons of ore in 2018 and 19 comma 800 tons of ore in 2019. what is the book value of the mine at the end of 2019? (round any intermediate calculations to two decimal places, and your final answer to the nearest dollar.)

One side of a rectangle is 7 feet shorter than seven times the other side. find the length of the shorter side if we also know that the perimeter of the rectangle is 306 feet.

{0,1,2,3,4,5,6,20,21,22,23,24,25} the distribution is considered to be: skewed the right, skewed the left, not skewed?

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).