Solve the system of equations by elimination.
A. (-3, 1)
B. (1, -3)
C. infinitely many solutions
D. no solution
Answer: B
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Solve the problem.An election is held among six candidates (A, B, C, D, E and F). There are 57 voters. Using the method of pairwise comparisons, A, B, and C win 2 pairwise comparisons each. D wins 4 pairwise comparisons, E wins no pairwise comparisons, and F wins all the rest. In this election
A. There is no Condorcet candidate. B. F is a Condorcet candidate. C. D is a Condorcet candidate. D. Cannot be determined from the information given. E. none of these
Find the area if the distance between two adjacent dots in a row or column is one unit.
A. 8 B. 6 C. 9 D. 7
Find the difference.$33 - $7.00
A. $26.00 B. $25.99 C. $25.90 D. $26.10
Solve the problem.The pH of a chemical solution is given by the formula pH = -log10[H+] where [H+] is the concentration of hydrogen ions in moles per liter. Find the pH if the [H+] = 4.7 × 10-12.
A. 12.33 B. 11.67 C. 11.33 D. 12.67