Solve the equation.3x + 12 = 0
A. {-3}
B. {-4}
C. {4}
D. {3}
Answer: B
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Write the compound inequality as an absolute value inequality. Do not simplify.-0.7 ? x + 
? 0.7
A. 
? 0.7
B. x + 
? 
C. 
? 0.7
D. 
? 0.7 + 
Write the expression with only positive exponents and evaluate if possible. Assume all variables represent nonzero real numbers.(4x)0
A. 4 B. 1 C. 0 D. 4x
Solve the problem.The city council of a small town needs to determine if the town's residents will support the building of a new library. The council decides to conduct a survey of a sample of the town's residents. Which one of the following procedures would be most appropriate for obtaining a sample of the town's residents?
A. Survey every 9th person who enters the old library on a given day. B. Survey a random sample of persons within each neighborhood of the town. C. Survey a random sample of librarians who live in the town. D. Survey 300 individuals who are randomly selected from a list of all people living in the state in which the town is located.
Find the standard form of the equation of the hyperbola with the given characteristics.
vertices: 
foci: 
A. 
B. 
C. 
D. 
E. 