A-48 ANSWERS 2. B A D C Other answers are possible. 3. ECDFEGABHG , , , , , , , , , 4. No. A path that includes each edge exactly one time would start at vertex E and end at vertex G, or vice versa. 5. WA ID UT NV OR CA AZ 6. B A D O E C F 7. Connected 8. Disconnected 9. Edge BD 10. CABFHGCDEDEF , , , , , , , , , , , ;otheranswersare possible. 11. FEDEDCGHFBAC , , , , , , , , , , , ; otheranswersare possible. 12. ABEGFDCADEA , , , , , , , , , , 13. EDCAEBADFGE , , , , , , , , , , 14. a) NE CO TX MO IA KS OK b) Yes. CO NE IA MO NE KS MO OK CO KS , , , , , , , , , , OK TX , ; other answers are possible. c) No 15. a) B A D O E C F b) Yes c) The person may start in any room or outside and will finish in the location from which they started. 19. 14 21 15 1 6 3 31 A C B H G E D F 21. A B C D E F 17 13 14 15 18 23. F H E C A B D 12 37 73 23 38 31 61 G 25. a) 75 32 64 43 37 45 40 35 I R J M H Other answers are possible. b) 40 32 35 37 H I J R M c) $8496 27. a) H 25 P A R L Y 25 33 44 59 b) $241,800,000 29. a) D H L S 12 15 13 b) $460,000 31. a) SP KC JC SJ SL 134 138 158 56 b) $4,617,000 33. Answers will vary. 35. Answers will vary. REVIEW EXERCISES, PAGE 890 1. C D A B E F Other answers are possible.
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