Evaluate the following double integral: xy dA D where the region D is the triangular region whose vertices are (0, 0), (0, 7), (7, 0).

1. are the triangles similar and if so why? what is the value of x? show your work.

If n stands for number sold and c stands for cost per item, in which column would you use the formula: ? a. column d c. column f b. column e d. column g

The classrooms are trying to raise $1,200.00 for charity. mrs. leblanc's class has raised 50%. mr. patel's class has raised $235.14 ms. warner's class has raised 1/3 as much as mrs. leblanc's class. how much more money is needed to reach the goal of $1,200.00?