Lesson_8.3_EvaluatingLogs

Lesson_8.3_EvaluatingLogs - (d) log x 20 = -3 (e) 3log 2 (x...

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Lesson_8.3_EvaluatingLogs.notebook 8.3 Evaluating Logarithms There are some basic properties of logarithms that can be useful when evaluating. Basic Properties of Logarithms Can you fill in the blanks? (1) log a 1 = (2) log a a x = (3) a = log x a Example #1: Evaluate. (a) (b) (c) a log 9 a (d) (e) log 4 64 + log 2 16
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Lesson_8.3_EvaluatingLogs.notebook Example #2: Solve for x. (a) log 2 16 = x (b) log x 49 = 2 (c) log x 8 = ¼
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Unformatted text preview: (d) log x 20 = -3 (e) 3log 2 (x - 1) = 6 To evaluate a logarithm whose base is not 10, we can use the following relationship. This formula is called the Change of Base Formula . Example #3: Evaluate. Round all answers to the nearest hundredth. (a) log 5 100 (b) log 3 75 Page 466 #1 - 6(ace), 9, 10, 13, 15, 18ac, 19 Homework...
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This note was uploaded on 01/14/2012 for the course MAT 107 taught by Professor Sda during the Spring '11 term at Beacon FL.

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Lesson_8.3_EvaluatingLogs - (d) log x 20 = -3 (e) 3log 2 (x...

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