Try another version of this question Use the change-of-base formul to rewrite the logarithm using the common logarithm or the natural logarithm. `\log_9(20)` First, write the exact answer. Do not round. `\log_9(20)=`
Now, use a calculator to evaluate the logarithm. Round to four decimal places. `\log_9(20)~~` Get help: Box 1: Enter your answer as a number (like 5, -3, 2.2172) or as a calculation (like 5/3, 2^3, 5+4) Box 2: Enter your answer as an integer or decimal number. Examples: 3, -4, 5.5172
Enter DNE for Does Not Exist, oo for Infinity
Decimal values are not allowed
Enter DNE for Does Not Exist, oo for Infinity
Your answer should be accurate to at least 4 decimal places.