Find the domain of the logarithmic function.f(x) = log4(x - 9)
A. (9, ?)
B. (-9, ?)
C. (-?, 9) or (9, ?)
D. (-?, 0) or (0, ?)
Answer: A
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Solve the problem.Evaluate 
at (u, v) = (1, 2) for the function w(x, y) = xy2 - ln x; x = eu+v, y = uv.
A. 8e3 - 1 B. -1 C. 12e3 - 1 D. 6e3 - 1
When CEOs select members of their top management team, they usually prefer people who think differently from them and who will be willing to disagree with them.
Answer the following statement true (T) or false (F)
The sizes of two matrices are given. Find the size of the product AB and the size of the product BA, if the given product can be calculated.A is 2 × 1; B is 1 × 1.
A. AB is 2 × 2; BA is 1 × 1. B. AB cannot be calculated; BA is 1 × 2. C. AB is 2 × 1; BA cannot be calculated. D. AB is 1 × 2; BA is 1 × 1.
Evaluate the expression without using a calculator.
A. 2 B. -2 C. -6 D. Not a real number