Factor the polynomial completely. If a polynomial cannot be factored, state that it is irreducible.x2 - x - 54
A. irreducible
B. (x + 6)(x - 9)
C. (x - 6)(x + 9)
D. (x - 54)(x + 1)
Answer: A
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Find the area of the specified region.Inside the circle r = a sin? and outside the cardioid r = a(1 - sin ?), a > 0
A. 
(2? - 3
)
B. 
(3
- ?)
C. 
(6 - ?)
D. 
(4? - 3
)
Solve the problem.Let f(x,y) = ln (x2 + y2). Which one of the following curves is a simple closed path in the domain of the function f?
A. The unit circle (x - 5)2 + y2 = 1
B. The ellipse 
+ 
= 1
C. The rectangle with vertices at (-3, 2), (3, 2), (3, -2), and (-3, -2)
D. The unit circle x2 + y2 = 1
Solve the problem.A graph has 25 edges. The sum of the degrees of all the vertices of this graph is
A. 25. B. 100. C. 75. D. not possible to determine from the information given. E. none of these
Divide if possible.
A. 0 B. 1 C. Undefined D. 11