Chapter 11: Problem 42
Solve the equations. $$ \log x=5 $$
Short Answer
Step by step solution
Key Concepts
These are the key concepts you need to understand to accurately answer the question.
/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none}
Learning Materials
Features
Discover
Chapter 11: Problem 42
Solve the equations. $$ \log x=5 $$
These are the key concepts you need to understand to accurately answer the question.
All the tools & learning materials you need for study success - in one app.
Get started for free
If \(\$ 1200\) is invested at \(7.5 \%\) annual interest, compounded continuously, when is it worth \(\$ 15,000 ?\)
Assume \(a\) and \(b\) are positive constants. Imagine solving for \(x\) (but do not actually do so). Will your answer involve logarithms? Explain how you can tell. $$ 3(\log x)+a=a^{2}+\log x $$
Solve the equations, first approximately, as in Example \(1,\) by filling in the given table, and thèn to four decimal places by using logarithms. $$ \begin{aligned} &\text { Table } 11.5 \text { Solve }\\\ &10^{x}=0.03\\\ &\begin{array}{c|c|c|c|c} \hline x & -1.6 & -1.5 & -1.4 & -1.3 \\ \hline 10^{x} & & & & \\ \hline \end{array} \end{aligned} $$
Write the expressions in the form \(\log _{b} x\) for the given value of \(b\). State the value of \(x\), and verify your answer using a calculator. $$ \frac{4}{\log _{2} 5}, \quad b=5 $$
Write the expressions in Problems \(44-49\) in the form \(\log _{b} x\) for the given value of \(b\). State the value of \(x\), and verify your answer using a calculator. $$ \frac{\log 17}{2}, \quad b=100 $$
What do you think about this solution?
We value your feedback to improve our textbook solutions.