Help me on my alg 2 final

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Algebra 2 Lab Final Exam – Spring 2015 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. Solve the equation: 2x 2  10x  0 . Check your solution(s) and state the final solution set. Show all your work. 29. Allegra has a cell-phone plan that charges $65 per month and $0.10 for every minute that she uses the phone beyond what her plan allows. One month, she was billed $73.40. a. Define a variable for the unknown. b. Write an equation to model the problem. Explain your answer. c. Solve the equation. Show your work. d. Find the number of minutes that Allegra went over the time that the plan allows. Explain your answer. 30. A manufacturer makes a rectangular blanket in several styles and sizes. The outline of a popular blanket in Size A is shown below. A. Write a polynomial expression, in simplified form, that represents the perimeter of the blanket. B. Write a polynomial expression, in simplified form, that represents the area of the blanket. C. The same style blanket in Size B has width 2x + 10 and length 4x – 10. Write a polynomial expression, in simplified form, that expresses the difference in area of Blankets A and B. Show all your work.
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