Solve the quadratic equation by completing the square.x2 + 4x = 3
A. {-2 ± 
}
B. {-2 ± 2
}
C. {2 ± 
}
D. {-1 ± 
}
Answer: A
Mathematics
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Use the preference table to answer the question.The preference table shows the results of an election among three candidates, A, B, and 
a. Using the plurality method, who is the winner?b. Is the Condorcet criterion satisfied?
A. candidate C; yes B. candidate A; yes C. candidate B; yes D. candidate A; no
Mathematics
Find the greatest common factor of the numbers.84 and 42
A. 14 B. 42 C. 21 D. 6
Mathematics
Sketch the graph of the function.f(x) = 
A. 
B. 
C. 
D. 
Mathematics
Divide.
÷ (-45)
A. - 5
B. - 
C. -10
D. 
Mathematics