Chapter 12: Problem 23
Evaluate each expression without using a calculator. $$\log _{2} 64$$
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Chapter 12: Problem 23
Evaluate each expression without using a calculator. $$\log _{2} 64$$
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U.S. soldiers fight Russian troops who have invaded New York City. Incoming missiles from Russian submarines and warships ravage the Manhattan skyline. It's just another scenario for the multi-billion-dollar video games Call of Duty, which have sold more than 100 million games since the franchise's birth in 2003 . The table shows the annual retail sales for Call of Duty video games from 2004 through 2010 . Create a scatter plot for the data. Based on the shape of the scatter plot, would a logarithmic function, an exponential function, or a linear function be the best choice for modeling the data? $$\begin{array}{l|c} \hline \text { Annual Retail Sales for } \text {Call of Duty Games} \\ \hline \text { Year } & \begin{array}{c} \text { Retail Sales } \\ \text { (millions of dollars) } \end{array} \\ \hline 2004 & 56 \\ \hline 2005 & 101 \\ \hline 2006 & 196 \\ \hline 2007 & 352 \\ \hline 2008 & 436 \\ \hline 2009 & 778 \\ \hline 2010 & 980 \\ \hline \end{array}$$
Graph \(f\) and \(g\) in the same viewing rectangle. Then describe the relationship of the graph of g to the graph of \(f\). $$f(x)=\ln x, g(x)=\ln (x+3)$$
The percentage of adult height attained by a girl who is \(x\) years old can be modeled by $$f(x)=62+35 \log (x-4)$$ where \(x\) represents the girl's age (from 5 to 15 ) and \(f(x)\) represents the percentage of her adult height. Use the formula to solve Exercises. Round answers to the nearest tenth of a percent. Approximately what percentage of her adult height has a girl attained at age ten?
Graph: \(5 x-2 y>10\)
Solve each equation. $$5^{x^{2}-12}=25^{2 x}$$
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