Match the graph to one of the listed functions. 
A. f(x) = -x2 - 12x
B. f(x) = x2 - 12
C. f(x) = -x2 - 12
D. f(x) = x2 - 12x
Answer: A
Mathematics
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Perform the indicated operation and simplify. Write the answer in the form a + bi.
A. 
i
B. - 
i
C. - 
i
D. 
i
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Rationalize the denominator of the expression. Assume that all variables represent positive real numbers.
A. 
B. 
C. 
D. 
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Divide.2.18 ÷ 2
A. 20.9 B. 10.9 C. 1.09 D. 2.09
Mathematics
Add or subtract. Then simplify. If a denominator has two or more factors (other than monomials), leave it in factored form. Express the answer using the denominator of the first fraction when applicable.
- 
A. 
B. 
C. 
D. 
Mathematics