Find the root. Assume that all variables represent nonnegative real numbers. 
A. 25
B. not a real number
C. 5
D. 8.368
Answer: C
Mathematics
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Solve the problem.Suppose the sales of a particular brand of appliance satisfy the relationship 
, where S(x) represents the number of sales in year x, with 
corresponding to 1982. In what year would the sales be 5100?
A. 1988 B. 1987 C. 1989 D. 1985
Mathematics
The graph of a function f is given. Use the graph to answer the question.What is the domain of f?
A. {x|x ? 0} B. {x|-60 ? x ? 55} C. all real numbers D. {x|-50 ? x ? 50}
Mathematics
Solve the radical equation.
- 
= 1
A. {-3, -1} B. {3, -1} C. {3} D. no real solution
Mathematics
Use graphs to find the set.(5, ?) ? [14, ?)
A. (5, 14] B. [14, ?) C. (-?, ?) D. (5, ?)
Mathematics