Chapter 11: Problem 11
Rewrite the equation using logarithms instead of exponents. $$ 10^{2.301}=200 $$
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Chapter 11: Problem 11
Rewrite the equation using logarithms instead of exponents. $$ 10^{2.301}=200 $$
These are the key concepts you need to understand to accurately answer the question.
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Rewrite the expression in terms of \(\log A\) and \(\log B\), or state that this is not possible. $$ \log (A(A+B))-\log (A+B) $$
Solve the equations, first approximately, as in Example \(1,\) by filling in the given table, and thèn to four decimal places by using logarithms. $$ \begin{aligned} &\text { Table } 11.5 \text { Solve }\\\ &10^{x}=0.03\\\ &\begin{array}{c|c|c|c|c} \hline x & -1.6 & -1.5 & -1.4 & -1.3 \\ \hline 10^{x} & & & & \\ \hline \end{array} \end{aligned} $$
Languages diverge over time, and as part of this process, old words are replaced with new ones. \({ }^{13}\) Using methods of glottochronology, linguists have estimated that the number of words on a standardized list of 100 words that remain unchanged after \(t\) millennia is given by $$ f(t)=100 e^{-L t}, \quad L=0.14 $$ Refer to this formula to answer What do your answers tell you about word replacement? Solve \(f(t)=10\)
Write the expressions in Exercises \(31-33\) in the form \(\log _{b} x\) and state the values of \(b\) and \(x\). Verify your answers using a calculator as in Example 6 . $$ \frac{\log 12}{\log 2} $$
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. $$ \frac{\log 17}{2}, \quad b=10 $$
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