![SOLVED: What does the change of base formula do? Why is it useful when using a calculator? Use the change of base rule to calculate 9 log 5 to 3 decimal places. SOLVED: What does the change of base formula do? Why is it useful when using a calculator? Use the change of base rule to calculate 9 log 5 to 3 decimal places.](https://cdn.numerade.com/ask_previews/86c69cbb-530e-4e87-a4f1-75d69d380ce9_large.jpg)
SOLVED: What does the change of base formula do? Why is it useful when using a calculator? Use the change of base rule to calculate 9 log 5 to 3 decimal places.
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Student Handheld Scientific Full Function Calculator Portable Calculator with 417 functions - Walmart.com
![The Log Base 10 Key. How To Work Out A Log Of Base 10 Using A Casio Classwiz fx-85GTX Calculator. - YouTube The Log Base 10 Key. How To Work Out A Log Of Base 10 Using A Casio Classwiz fx-85GTX Calculator. - YouTube](https://i.ytimg.com/vi/N1ncC66PxtA/mqdefault.jpg)