Solve the problem.If a given set has thirteen elements, how many of its subsets have somewhere from four through eight elements?

A. 4,719 subsets
B. 1,419 subsets
C. 5,434 subsets
D. 6,721 subsets

Answer: D

Mathematics

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Evaluate the integral by making a substitution and then using a table of integrals.  

A. 9 sin-1 -   + C
B.   - 3 ln  + C
C. 9 sin-1 -   + C
D. 9 sin-1 + x  + C

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Mathematics

Use the Lucas sequence to answer the question.What is the 20th term of the Lucas sequence?

A. 15,217 B. 15,127 C. 9,349 D. 24,476

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Mathematics

Simplify the complex number to its rectangular form. + 

A. 7 + 8j B. 15j C. 8 + 7j D. 7 - 8j

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Mathematics

Perform the indicated division by synthetic division.(2x5 - x4 + 3x2 - x + 5) ÷ (x - 1)

A. 2x4 + x3 - x2 + 2x + 1, R = 6 B. 2x4 + x3 + x2 + 4x + 3, R = 8 C. 2x4 + x3 + 4x2 + 3x, R = 8 D. 2x4 - 3x3 - x, R = 6

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Mathematics