Chapter 9: Problem 88
Evaluate the expression. -y^{2} \text { when } y=-1
Over 30 million students worldwide already upgrade their learning with Vaia!
All the tools & learning materials you need for study success - in one app.
Get started for free
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.
Use a calculator to solve the equation or write no solution. Round the results to the nearest hundredth. $$6 s^{2}-12=0$$
Solve the equation or write no solution. Write the solutions as integers if possible. Otherwise write them as radical expressions. $$x^{2}-7=57$$
You are buying a combination of irises and white tulips for a flower arrangement. The irises are 1 dollars each and the white tulips are 50 dollars You spend 20 dollars total to purchase an arrangement of 25 flowers. How many of each kind did you purchase? (Review 7.2)
Use 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)
What do you think about this solution?
We value your feedback to improve our textbook solutions.
