Chapter 9: Problem 67
Solve the equation or write no solution. Write the solutions as integers if possible. Otherwise write them as radical expressions. $$6 x^{2}-54=0$$
Chapter 9: Problem 67
Solve the equation or write no solution. Write the solutions as integers if possible. Otherwise write them as radical expressions. $$6 x^{2}-54=0$$
All the tools & learning materials you need for study success - in one app.
Get started for freeUse linear combinations to solve the system. (Review 7.3 ) You are selling tickets at a high school basketball game. Student tickets cost 2 dollars and general admission tickets cost 3 dollars. You sell 2342 tickets and collect 5801 dollars. How many of each type of ticket did you sell? (Review 7.2)
GOVERNMENT PAYROLL In Exercises 27 and 28 , use a graphing calculator and the following information. For a recent 12-year period, the total government payroll (local, state, and federal) in the United States can be modeled by \(P=26 t^{2}+1629 t+19,958\) where \(P\) is the payroll in millions of dollars and \(t\) is the number of years since the beginning of the 12 -year period. \(=\) Source: U.S. Bureau of the Census Use a graphing calculator to find out how many years it will take for the total payroll to reach 80 billion dollars according to the model.
A boulder falls off the top of a cliff during a storm. The cliff is 60 feet high. Find how long it will take for the boulder to hit the road below. Which problem solving method do you prefer? Why?
CHANGING C-VALUES In Exercises 21-23, find values of \(c\) so that the equation will have two solutions, one solution, and no real solution. Then sketch the graph of the equation for each value of \(c\) that you chose. $$2 x^{2}+3 x+c=0$$
Use a calculator to evaluate the expression. Round the results to the nearest hundredth. $$\frac{5 \pm 6 \sqrt{3}}{3}$$
What do you think about this solution?
We value your feedback to improve our textbook solutions.