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9. y > -3

11. y < 2

13. (0, -10)

15. (-3, -2.25)

17. (2.5, 0)

19. (5, -9)

21. (-6.16, 0)

22. Round 3.587243 to the nearest tenth.

23. 3.6

24. Round 4.593132 to 2 decimal places.

27. 28

31. 0.9 and -2.4

32. Solve for x. (x + 8)(x – 12) = 0

33. x = -8, x = 12

34. Solve for x. (2x – 5)(4x + 3) = 0

35. x = 5/2, x = -3/4

37. x = 10, x = – 4

39. x = 7, x = 5

41. x = 8/3, x = -2

42. If you were to solve 4x 2 = 3x – 2 using the quadratic formula, what values would you use for a, b, and c?

43. a = 4, b = -3, c = 2

45. 496 feet

49. 7 seconds

51. 2 seconds