The missing values in the table will be 11.452.
What is a logarithm?
Logarithms are another way of writing exponent. A logarithm with a number base is equal to the other number. It is just the opposite of the exponent function.
The given data from the table;
[tex]\rm f(x)=b^x[/tex]
For the first function;
[tex]\rm b^(0.683)= 3 \\\\ b= 4.995[/tex]
The blank data is found as;
[tex]\rm b^x = 8 \\\\ \rm (4.995)^x = 8 \\\\ x \ log \ 4.995 =8 \\\\ x=11.452[/tex]
Hence the missing values in the table will be 11.452.
To learn more about the logarithm refer to the link;
https://brainly.com/question/7302008