Chapter 9: Problem 43
SOLVING INEQUALITIES Solve the inequality. $$y-4 x<0$$
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Use a calculator to evaluate the expression. Round the results to the nearest hundredth. $$\frac{5 \pm 6 \sqrt{3}}{3}$$
Solve the equation or write no solution. Write the solutions as integers if possible. Otherwise write them as radical expressions. $$b^{2}=64$$
Solve the inequality and graph the solution. |2 x+9| \leq 15
COMPUTER MODEMS In Exercises \(46-48\), use the following data which list the prices of several computer modems.\$ 230, \$ 220, \$ 170, \$ 215, \$ 190, \$ 200, \$ 200, \$ 150, \$ 170 Use a stem-and-leaf plot to order the data from least to greatest.
FINANCIAL ANALYSIS In Exercises 29 and \(30,\) use a graphing calculator and the following information. You are a financial analyst for a software company. You have been asked to project the net profit of your company. The net profit of the company from 1993 to 1998 can be modeled by \(P=6.84 t^{2}-3.76 t+9.29\) where \(P\) is the profit in millions of dollars and \(t\) represents the number of years since \(1993 .\) Use a graphing calculator to estimate how many years it will take for the company's net profit to reach 475 million dollars according to the model.
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