Perform the indicated operation.(2 + x2 - 4x) + (-6x - 12 + x3) + (-4x - 2 + 2x3)
A. 4x3 - 14x - 12
B. 3x3 + x2 - 14x - 12
C. 3x3 - 5x2 - 8x - 12
D. 3x3 + x2 - 14x + 0
Answer: B
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Find an expression for the nth term of the arithmetic sequence.4, 6, 8, 10, 12, . . .
A. an = 4n B. an = n + 2n C. an = 2n + 2 D. an = 2n + 4
Find the unknown length in the right triangle. If necessary, approximate the length to the nearest thousandth.
A. 342.5 m B. 685 m C. 26.173 m D. 18.5 m
Provide an appropriate response.Write the quotient using positive exponents: 
A. x3
B. 
C. 
D. x4
Tell whether the relation is reflexive, symmetric, or transitive on the set of subsets of a nonempty set. Also tell whether the relation is an equivalence relation."Is the complement of"
A. None; not an equivalence relation B. Symmetric and transitive; not an equivalence relation C. Reflexive; not an equivalence relation D. Symmetric; not an equivalence relation