Chapter 10: Problem 50
Solve each equation. \(\log _{x} 3=\frac{1}{2}\)
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Chapter 10: Problem 50
Solve each equation. \(\log _{x} 3=\frac{1}{2}\)
These are the key concepts you need to understand to accurately answer the question.
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Perform the following calculations and express answers to the nearest hundredth. $$ \frac{\ln 3}{0.04} $$
Solve each exponential equation and express approximate solutions to the nearest hundredth. $$ 5^{2 x+1}=7^{x+3} $$
(a) Complete the following table, and then graph \(f(x)=\ln x\). (Express the values for \(\ln x\) to the nearest tenth.) $$ \begin{array}{c|l|l|l|l|l|l|l} \hline \boldsymbol{x} & 0.1 & 0.5 & 1 & 2 & 4 & 8 & 10 \\ \hline \ln \boldsymbol{x} & & & & & & & \\ \hline \end{array} $$ (b) Complete the following table, expressing values for \(e^{x}\) to the nearest tenth. \begin{array}{c|c|c|c|c|c|c|c} \hline \boldsymbol{x} & -2.3 & -0.7 & 0 & 0.7 & 1.4 & 2.1 & 2.3 \\ \hline \boldsymbol{e}^{\boldsymbol{x}} & & & & & & & \\ \hline \end{array} Then graph \(f(x)=e^{x}\), and reflect it across the line \(y=\) \(x\) to produce the graph for \(f(x)=\ln x\).
Solve each exponential equation and express approximate solutions to the nearest hundredth. $$ 3^{x-1}=2^{x+3} $$
The equation \(P(a)=14.7 e^{-0.21 a}\), where \(a\) is the altitude above sea level measured in miles, yields the atmospheric pressure in pounds per square inch. If the atmospheric pressure at Cheyenne, Wyoming, is approximately \(11.53\) pounds per square inch, find that city's altitude above sea level. Express your answer to the nearest hundred feet. 6100 feet
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