Exercises 16.6, page 464

  1. 1. 13

  2. 3.  − 90

  3. 5. 0

  4. 7.  − 40

  5. 9. 120

  6. 11. 22

  7. 13. 57

  8. 15.  − 13

  9. 17.  − 36

  10. 19. 0

  11. 21. x =  − 1 ,  y = 0 ,  z = 2 ,  t = 1

  12. 23. x = 1 ,  y = 2 ,  z =  − 1 ,  t = 3

  13. 25. x = 2 ,  y =  − 1 ,  z =  − 1 ,  t = 3

  14. 27. D = 1 ,  E = 2 ,  F =  − 1 ,  G =  − 2

  15. 29. 0

  16. 31. 8

  17. 33. 3316A , 118A ,   − 58A ,   − 158A ,   − 1516A

  18. 35. 20.8 km2

  19. 37. ppm SO2 :  0.5, NO: 0.3, NO2 :  0.2, CO: 5.0

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