Question

Which of these expressions is equivalent to log(25 • 18)?

A. log(25) – log(18)
B. log(25) + log(18)
C. 25. log(18)
D. log(25) .log(18)
SUBMIT

Answer 1

`log(25 * 18) \\ by \: \: \: using \: \: \: the \: \: \: following \: \: \: rule \: \: \: of \: \: \: logarithm \\ log(x * y) = log(x) + log(y) \: \: \: \: we \: \: \: have \\ log(25) + log(18)`

Answer:

B. log (25) + log (18)

Hope it helps.

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Answer 2

Answer: B. log(25) + log(18)

Explanation:

Use the rule for the sum of logs: the log of a product is the sum of the logs, which means log(x) + log(y) = log(xy) if they have the same base.