Let v1 = (-4 -1 -2) v2 = (-3 1 -2), v3 = (1 -5 2), and H = Span (v1, v2, v3). Note that v3 = 2v1 - 3v2. Which of the following sets form a basis for the sub-space H, i. e., which sets form an efficient spanning set containing no unnecessary vectors?
a. v1,v2, v3.
b. v1, v2.
c. v1, v3.
d. v2, v3.

Each of the walls of a room with square dimensions has been built with two pieces of sheetrock, a smaller one and a larger one. the length of all the smaller ones is the same and is stored in the variable small. similarly, the length of all the larger ones is the same and is stored in the variable large. write a single expression whose value is the total area of this room. do not use any method invocations.

For a field trip to the zoo, 4 students rode in cars and the rest filled nine busess. how many students were in each bus if 472 students were on the trip

Cot(90° − x) = 1 the value of x that satisfies this equation is °. a. 60 b. 135 c. 225 d. 315