Compute the double integral ∫∫D2xy2dxdy over the region D bounded by xy=1, xy=9, xy2=1, xy2=49 in the first quadrant of the xy-plane. Hint: make a change of variables T:ℝ2→ℝ2 that converts a rectangular region D∗ in the uv-plane into the region of integration D=T(D∗) in the xy-plane.

Bruce is getting materials for a chemistry experiment his teacher gives him a container that has 0.25 liter of liquid in it.bruce need to use 0.4 of this liquid for the experiment. how much liquid will bruce use?

The given dot plot represents the average daily temperatures, in degrees fahrenheit, recorded in a town during the first 15 days of september. if the dot plot is converted to a box plot, the first quartile would be drawn at __ , and the third quartile would be drawn at link to the chart is here

Helll ! 1,400 tons of wheat of two different varieties was delivered to the silo. when processing one variety, there was 2% of waste and 3% during the processing of the second variety of wheat. after the processing, the amount of remaining wheat was 1,364 tons. how many tons of each variety of wheat was delivered to the silo?