Use Cramer's Rule to solve the system of equations. Use technology to compute the determinants involved.
A. {(9, 5, 1)}
B. {(8, -7, -1)}
C. {(8, 7, 1)}
D. {(7, 1, 7)}
Answer: C
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Evaluate the improper integral or state that it diverges.
A. 1.6667 B. 2.6667 C. 1.3333 D. diverges
Solve the problem.If a person puts 1 cent in a piggy bank on the first day, 2 cents on the second day, 3 cents on the third day, and so on, how much money will be in the bank after 40 days?
A. $0.40 B. $4.10 C. $8.20 D. $16.40
Perform the operation and give the answer as a fraction in lowest terms.
÷ 
A. - 
B. 
C. - 
D. - 
For an election with four candidates (A, B, C, and D) we have the following preference schedule:
In this election,
A. B is a Condorcet candidate. B. A is a Condorcet candidate. C. every candidate is a Condorcet candidate. D. there is no Condorcet candidate. E. none of these