Factor by grouping.x4 - 2x3 - 6x2 + 12x
A. x(x2 - 2)(x - 6)
B. x(x2 - 6)(x - 2)
C. x(x2 + 6)(x - 2)
D. (x3 - 6)(x + 2)
Answer: B
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Solve the problem.Which voting method always satisfies the monotonicity criterion?
A. Hare B. plurality C. Borda D. pairwise comparison
Using the Divergence Theorem, find the outward flux of F across the boundary of the region D.F = 5x3i + 5y3j + 5z3k ; D: the thick sphere 16 ? x2 + y2 + z2 ? 25
A. 25212? B. 915? C. 2460? D. 126,060?
Answer the question.How can the graph of f(x) = -7x3 + 8 be obtained from the graph of 
A. Stretch it horizontally by a factor of -7. Reflect it across the x-axis. Shift it vertically 8 units downward. B. Stretch it horizontally by a factor of 8. Reflect it across the x-axis. Shift it vertically 7 units upward. C. Stretch it vertically by a factor of 7. Reflect it across the y-axis. Shift it vertically 8 units upward. D. Stretch it vertically by a factor of 7. Reflect it across the x-axis. Shift it vertically 8 units upward.
Write the number in scientific notation.0.00000054105
A. 5.4105 × 10-7 B. 5.4105 × 107 C. 5.4105 × 10-6 D. 5.4105 × 106