Solve the equation by the method of your choice. Simplify irrational solutions, if possible.x2 + 18x + 66 = 0
A. {-18 ± 
}
B. {-9 ± 
}
C. {9 ± 
}
D. {9 ± 
}
Answer: B
Mathematics
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Solve the absolute value inequality. Write your answer in interval notation.|3k - 6| - 2 > 6
A. 
B. 
C. 
D. 
? 
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Provide an appropriate response.Show that the vectors 
b + 
a and 
b - 
a are orthogonal.
What will be an ideal response?
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Graph the function.f(x) = -2x2
A. 
B. 
C. 
D. 
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Solve.Alan walked 
mi to the store and then another 
mi to his friend's house. How far did he walk?
A. 
mi
B. 
mi
C. 
mi
D. 
mi
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