Problem 63 of 7
Create and solve a logarithmic equation from context: Decibel level D=10log(I/I0). A sound has D=80.
Using a hint is okay. It just tells the trainer to give you a little more review.
Hidden until you reveal it.
translate inverse exponential relationship.
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Translate logarithmic relationship and enforce positive log arguments.
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Your answer is equivalent to the expected form.
Walkthrough
Full solution stays hidden until you ask for it.
1. Identify logarithmic model and variable.
2. Set equation from context target.
3. Convert to exponential form or apply log properties, then check domain.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Log of nonpositive quantity.