Solve using the elimination method. If the system has no solution or an infinite number of solutions, state this.-x - 4y = 13-3x + 4y = -9
A. (-1, -3)
B. (3, -1)
C. (0, -4)
D. No solution
Answer: A
Mathematics
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If the winner is decided by a Borda count, which of the following fairness criteria is violated?
A. Fairness Criterion 2 B. Fairness Criterion 4 C. Fairness Criterion 3 D. None of these
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Add in the indicated base.445 + 445
A. 1435 B. 2315 C. 1225 D. 1315
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Rationalize the denominator.
A. 
B. 
C. 
D. -1
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Perform the division.
A. z - 7
B. z - 7 + 
C. z + 7 - 
D. z + 7
Mathematics