Find the domain of the function.f(x) = 
A. (-?, 2)
B. (-?, ?)
C. (-?, -2) ? (-2, ?)
D. (-?, 0) ? (0, ?)
Answer: C
Mathematics
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Simplify the expression. Assume that all variables represent non-negative real numbers.5
- 
A. 5(x -1)
B. (x -1)
C. (5x -1)
D. 5x
- 1
Mathematics
Find the derivative of y with respect to the independent variable.y = 7x
A. x ln 7 B. 7x C. 7x ln 7 D. 7x ln x
Mathematics
Solve the problem.45% of what number is 71?
A. 1580 B. 100 C. 158 D. 1
Mathematics
Graph the function.Use the graph of f(x) = 2x to obtain the graph of g(x) = 2x + 2 + 1.
A. 
B. 
C. 
D. 
Mathematics