Logarithms

Hong Kong

Stage 4 - Stage 5

Evaluate $\log_50.2$`l``o``g`50.2.

Easy

Less than a minute

Evaluate $\log_{10}0.1$`l``o``g`100.1.

Evaluate $\log23$`l``o``g`23 writing the answer to the nearest thousandth.

Consider the function $f\left(x\right)=\log_{10}\left(3x+9\right)$`f`(`x`)=`l``o``g`10(3`x`+9).

Evaluate $f\left(4\right)$`f`(4) to two decimal places.

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