In Exercises 71–78, use common logarithms or natural logarithms and a calculator to evaluate to four decimal places.log14 87.5

In Exercises 41–70, use properties of logarithms to condense each logarithmic expression. Write the expression as a single logarithm whose coefficient is 1. Where possible, evaluate logarithmic expressions without using a calculator.(1/3) [2 ln(x + 5) - ln x - ln (x^2 - 4)]

In Exercises 41–70, use properties of logarithms to condense each logarithmic expression. Write the expression as a single logarithm whose coefficient is 1. Where possible, evaluate logarithmic expressions without using a calculator.(1/3) [2 ln(x + 5) - ln x - ln (x^2 - 4)]

In Exercises 41–70, use properties of logarithms to condense each logarithmic expression. Write the expression as a single logarithm whose coefficient is 1. Where possible, evaluate logarithmic expressions without using a calculator.log x + log(x^2 - 1) - log 7 - log(x + 1)

In Exercises 71–78, use common logarithms or natural logarithms and a calculator to evaluate to four decimal places.log5 13

In Exercises 71–78, use common logarithms or natural logarithms and a calculator to evaluate to four decimal places.log0.1 17

In Exercises 71–78, use common logarithms or natural logarithms and a calculator to evaluate to four decimal places.logπ 63

Use the change-of-base theorem to find an approximation to four decimal places for each logarithm. See Example 8. log_2 5