Find the domain of the following function. âf(x, y) = 9xy - 8x + 4y Select the correct choice belowâ and, ifâ necessary, fill in the answer box to complete your choice. A. â{(x, y): x â ây â } B. â{(x, y): x â  yâ} C. â{(x, y): > 0} D. â{(x, y): < 0} E. R2

Rena is building a 1: 180 scale model of a real castle. her model has a rectangular base that is 3 feet wide and 4 feet long what is the area of the base of the actual castle in square feet

The annual snowfall in a town has a mean of 38 inches and a standard deviation of 10 inches. last year there were 63 inches of snow. find the number of standard deviations from the mean that is, rounded to two decimal places. 0.44 standard deviations below the mean 2.50 standard deviations below the mean 0.44 standard deviations above the mean 2.50 standard deviations above the mean

Asquare picture with sides of 32 inches is to be mounted on a square mat with sides of 52 inches. find the area of the mat that will remain uncovered by the picture.