Find the domain of the logarithmic function.f(x) = log5(x - 5)
A. (5, ?)
B. (-?, 0) or (0, ?)
C. (-5, ?)
D. (-?, 5) or (5, ?)
Answer: A
Mathematics
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Find the specific function value.Find f(-2, -3) when f(x, y) = 5x + 2y - 8.
A. -24 B. -26 C. -16 D. -29
Mathematics
Use modular arithmetic to find the answer.Find all x such that x = 9 (mod 13).
A. x = 13 + 9k, where k is an integer B. x = 9 + 13k, where k is an integer C. x = 13 + 22k, where k is an integer D. x = 9 + 13
Mathematics
Find the common ratio for the geometric sequence.3, 9, 27, 81, 243, . . .
A. r = 81 B. r = 9 C. r = 1/3 D. r = 3
Mathematics
Fill in the blank with one of the words or phrases listed below.
A(n) 
contains a whole number part and a fraction part.
A. complex fraction B. proper fraction C. mixed number D. improper fraction
Mathematics