4. suppose the set {u, v} forms a basis for a subspace w, in r^n. let x = u+v and y u v. show [x. y is also a basis for w. (hint: use the basis theorem at the end of 2.9)

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?

The ratio of the measures of the three angles in a triangle is 2: 9: 4. find the measures of the angels

*segment an is an altitude of right ? abc with a right angle at a. if ab = 2root 5 in and nc = 1 in, find bn, an, ac.