Completely factor the polynomial or state that the polynomial is prime.x2 - x - 54
A. (x - 54)(x + 1)
B. (x - 6)(x + 9)
C. (x + 6)(x - 9)
D. prime
Answer: D
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Evaluate the expression. 
A. 7920
B. 330
C. 
D. 1,663,200
Use a graphing calculator to graph the function.f(x) = 
A. 
B. 
C. 
D. 
Given that the augmented matrix in row reduced form is equivalent to the augmented matrix of a system of linear equations, determine whether the system has a solution.
Robin purchased shares of a machine tool company and shares of an airline company. Let E be the event that the shares of the machine tool company increase in value over the next 5 months, and let F be the event that the shares of the airline company increase in value over the next 5 months. Using the symbols ?,? and c describe the event that the shares of only one of the two companies increase in value.
a. (E ? Fc) ?(Ec ? F) b. E ?F c. Ec ? Fc d. Ø