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Intermediate Algebra – Student Workbook – Second Edition 2013

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Lesson 4b <strong>–</strong> More on Logarithms<br />

Practice Problems<br />

3. Rewrite each exponent as a log. Then use the change of<br />

base rule and your calculator to find the answer. Show your<br />

work. Round your answers to two decimal places.<br />

Example:<br />

An example of how your work should look is shown to the<br />

right.<br />

a) 8 x = 42 b) 3 x = 100<br />

c) 4 x = .5 d) 10 x = 4025<br />

e) ( ) f) 20 x = 1<br />

Scottsdale Community College Page 174 <strong>Intermediate</strong> <strong>Algebra</strong>

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