How do you evaluate #f(x)=3lnx# for #x=0.75#? Precalculus Properties of Logarithmic Functions Logarithm-- Inverse of an Exponential Function 1 Answer Binayaka C. May 30, 2018 # f(0.75) = -0.86 (2 dp)# Explanation: # f(x) = 3 ln x; x =0.75 # # f(0.75) = 3 ln 0.75;# or # f(0.75) = 3 * (-0.28768);# or # f(0.75) = -0.86 (2 dp)# [Ans] Answer link Related questions What is a logarithm? What are common mistakes students make with logarithms? How can a logarithmic equation be solved by graphing? How can I calculate a logarithm without a calculator? How can logarithms be used to solve exponential equations? How do logarithmic functions work? What is the logarithm of a negative number? What is the logarithm of zero? How do I find the logarithm #log_(1/4) 1/64#? How do I find the logarithm #log_(2/3)(8/27)#? See all questions in Logarithm-- Inverse of an Exponential Function Impact of this question 1590 views around the world You can reuse this answer Creative Commons License