Factor completely. If the polynomial is prime, say so.2k3 - 54

A. 2(x - 3)(x2  + 9)
B. 2(x - 3)(x2 + 3x + 9)
C. (2x - 3)(x2 + 3 + 18)
D. 2(x + 3)(x2 - 3x + 9)


Answer: B

Mathematics

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Translate the statement into an equation. Let the unknown number be represented by x. Then solve the equation for the unknown number.The quotient of some number and 25 is 40.

A. 25x = 40; x = 
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C.  = 40; x = 1000
D.  = 25; x = 1000

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A. (- 1, - 9) B. (1, 9) C. (- 1, 9) D. (9, - 1)

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Use the given feasible region determined by the constraint inequalities to find the minimum possible value of the objective function.f = 4x + 3y subject to the constraints 

A. 0 B. 26 C. 24 D. 21

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Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.sec ? = - ,   < ? < ?Find sin .

A.
B.
C. - 
D. - 

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