Solve the equation by completing the square.x2 + 16x + 43 = 0
A. {-8 - 
, -8 + 
}
B. {8 - 
, 8 + 
}
C. {8 + 
}
D. {-16 + 
}
Answer: A
Mathematics
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A. 
B. 
C. 
D. 
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A. Even B. Odd C. Neither
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Provide an appropriate response.What is the period of the function y = 
cos 
?
A. 120°
B. 180°
C. 
D. 3
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What will be an ideal response?
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