Solve. Check for extraneous solutions.
= 5 - 2x
A. 
B. {5}
C. 
D. 
Answer: A
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Solve the problem.A scientist performs an experiment to produce a compound by adding various amounts of a catalyst to a chemical reaction. Her data can be modeled by the formula A = 0.09c + 3.86, where A represents the amount of the compound, in grams, produced when c milligrams of the catalyst are added to the reaction. According to the formula, how much compound is produced when 
of catalyst are added?
A. 2703.86 g B. 1185.00 g C. 30.86 g D. 27.00 g
Find the function from the given verbal description of the function.If m is the square of n and y is m minus 4, then write y as a function of n.
A. y = 2n - 4 B. y = 4 - n2 C. y = n2 - 4 D. y = (n - 4)2
The graph of a function f is given. Use the graph to answer the question.How often does the line y = 20 intersect the graph?
A. does not intersect B. twice C. once D. three times
Find the indicated limit if it exists.
(3x2 - 19)2
A. 256 B. 100 C. -352 D. 144