91Ó°ÊÓ

Multiple choice The gross domestic product, or GDP, of the United States was about \(\$ 10.99\) trillion in 2003 . Assume that GDP grows 3.1\(\%\) each year. Use an exponential model to find which percent best describes the GDP growth that occurs over 18 years. a. 19.0\(\%\) b. 74.7\(\%\) c. 129.1\(\%\) d. 173.2\(\%\)

For each function, find the percent increase or decrease that the function models. $$ y=0.8\left(\frac{1}{8}\right)^{x} $$

An investor withdraws all \(\$ 525\) from an account that was neglected for 8 years. It earned 3.4\(\%\) annual interest, compounded continuously. How much was the initial deposit?

Use your calculator to evaluate each logarithm to four decimal places. Then find the largest integer that is less than the value of the logarithm. $$ \log 5 $$

Solve each equation. $$ \log 5-\log 2 x=1 $$

For each annual rate of change, find the corresponding growth or decay factor. $$ +70 \% $$

For each annual rate of change, find the corresponding growth or decay factor. $$ +500 \% $$

For each annual rate of change, find the corresponding growth or decay factor. $$ -75 \% $$

For each annual rate of change, find the corresponding growth or decay factor. $$ -55 \% $$

For each annual rate of change, find the corresponding growth or decay factor. $$ +100 \% $$