Factor the trinomial completely.u2 - 4uv - 45v2
A. (u - 5v)(u + v)
B. (u - 5v)(u + 9v)
C. (u + 5v)(u - 9v)
D. Prime
Answer: C
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Evaluate the line integral of f(x,y) along the curve C.f(x,y) = 6y2, C: y = e-x, 0 ? x ? 3
A. 2
B. 2
C. 3[2
- (e- 6 + 1)3/2]
D. 2[2
- (e- 6 + 1)3/2]
Add or subtract as indicated. Simplify, if necessary.
- 
A. 
B. - 
C. 
D. - 
For the following question(s), refer to the digraph below.
Suppose that the vertices of the digraph represent individuals and there is an arc going from vertex X to vertex Y if and only if X "likes" Y. Which of the following statements [A), B), C), or D)] is not true?
A. B likes E but E does not like B. B. B and C do not like each other. C. A likes B and E but does not like C or D. D. A and B like each other. E. all of these statements are true.
Factor the expression completely. : 30x² - 11x - 30
(a) (9x + 7)(5x - 6) (b) (6x + 5)(5x - 6) (c) (9x - 7)(7x + 9) (d) (6x + 5)(7x - 9) (e) (9x + 7)(7x - 9)