Problem 136 of 7
Compare exact log form and decimal approximation for 2^x=9.
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preserve exact expression and approximate when needed.
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Preserve exact expression and approximate only when needed.
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Correct
Your answer is equivalent to the expected form.
Solution
Walkthrough
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1. Solve in exact logarithmic form.
2. Evaluate with technology if a decimal is requested.
3. State rounding precision and units if any.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Replacing exact form with a rounded decimal when exact answer is requested.