Chapter 4: Problem 22
In Exercises 21–42, evaluate each expression without using a calculator. $$ \log _{7} 49 $$
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These are the key concepts you need to understand to accurately answer the question.
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Chapter 4: Problem 22
In Exercises 21–42, evaluate each expression without using a calculator. $$ \log _{7} 49 $$
These are the key concepts you need to understand to accurately answer the question.
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Determine whether each statement is true or false. If the statement is false, make the necessary change(s) to produce a true statement. Examples of exponential equations include \(10^{x}=5.71\) \(e^{x}=0.72,\) and \(x^{10}=5.71\)
Graph: \(f(x)=\frac{4 x^{2}}{x^{2}-9}\) (Section 3.5, Example 6)
Will help you prepare for the material covered in the next section. $$ \text { Solve: } \frac{x+2}{4 x+3}=\frac{1}{x} $$
Determine whether each statement makes sense or does not make sense, and explain your reasoning. I can use any positive number other than 1 in the change-of-base property, but the only practical bases are 10 and \(e\) because my calculator gives logarithms for these two bases.
Use your graphing utility to graph each side of the equation in the same viewing rectangle. Then use the \(x\) -coordinate of the intersection point to find the equation's solution set. Verify this value by direct substitution into the equation. $$ \log (x+3)+\log x=1 $$
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