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Chapter 1: Problem 13
Write the expression in exponential form. two cubed
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Complete: You _______an expression by substituting numbers for variables and simplifying. The resulting number is called the______ of the expression.
Evaluate the power. \(9^{2}\)
SCHOOL ENROLLMENT The table shows the number of students (in millions) enrolled in school in the United States by age. Make a table showing the total number of students enrolled for each given year. $$ \begin{array}{|c|c|c|c|c|c|} \hline \text { Age } & {1980} & {1985} & {1990} & {1995} & {2000} \\ \hline 14-15 \text { years old } & {7282} & {7362} & {6555} & {7651} & {8100} \\\ \hline 16-17 \text { years old } & {7129} & {6654} & {6098} & {6997} & {7600} \\\ \hline 18-19 \text { years old } & {3788} & {3716} & {4044} & {4274} & {4800} \\\ \hline \end{array} $$ Which year had the least number of students enrolled? Which had the greatest number of students enrolled?
Kudzu is a type of Japanese vine that grows at a rate of 1 foot per day during the summer. On August \(1,\) the length of one vine was 50 feet. What was the length on July \(1 ?\) HINT: July has 31 days. Assign labels to the verbal model. Use \(x\) to represent the unknown value.
An appliance store sells two stereo models. The model without a CD player is \(\$ 350 .\) The model with a CD player is \(\$ 480 .\) Your summer job allows you to save \(\$ 50\) a week for 8 weeks. At the end of the summer, you have enough to buy the stereo without the CD player. How much would you have needed to save each week to buy the other model? Use the labels to translate your verbal model into an equation.
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