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course 158
Assignment 1 R.18. true
11. 4
14. 4 U C = 1,2,4,6
17. 0,1,2,3,4,5,6,7,8,9
20. 0,1,3,5,8 intersection 0,2,5,7,8,9 = 0,5,8
23. A=1 B=0,1 C=0,1,1/2,1/3,1/4 D=NONE E=0,1,1/2,1/3,1/4
26. A=NONE B=NONE C=1/2,10.3 D= -SQUARE ROOT OF 2, PI, SQUARE ROOT 2 E= -SQUARE ROOT2, PI, SQUARE ROOT 2,1/2,10.3
29.28.653
32. 0.054
35. .429
38. 16.2
41. X+2=3*4
44. 2+X=4+6
47. X/2=6
50. 6-4+3 6-4= 2+3 =5
53. 4+5-8 4+5=9-8 =1
56. 2-1/2 2/1*2= 4/1-1/2 = 3/2
59. 2*(3-5)+8*2-1 2*-2+8*2-1 -4+16-1=11
62. 2-5*4-[6*(3-5)] 2-20-[6*-2] 2-20—12 -18+12=-6
65. 4+8/5-3 12/2 =6
68.5/9*3/10 5*3/3*3 2*5 =1/6
71. ¾ +2/5 = ¾*5/5 +2/5 * 4/4 = 15/20+8/20
=23/20
74.8/9+15/2 8/9*2/2 +15/2*9/9 =16/18 +135/18 =151/18
77. 1/30 -7/18 1/30*18/18 -7/18 * 30/30 18/540-210-540 = -192/540
80. 6/35 - 3/14 6/35*14/14 - 3/14 * 35/35 =84/90 - 105/490 = -21/490
83. ½ *3/5 +7/10 3/10+7/10= 10/10 = 1
86. 3/1 *5/6 - 1/6 15/6 - 1/6 = 14/6
89. X(X-4) = X^2 -4X
92. 3(2/3 X +1/6) = 6/9 X + 3/18 6/9 * 2= 12/18 X +3/18 X+15/18
95. (X-2)(X+1)= X^2 +1X-2X+-2 = X^2-X-2
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You weren't asked to submit the problems in this format. You were only asked to submit the Query document, which asks you about selected problems.
You are always welcome to submit problems that don't appear on the Query, but solutions need to be complete and self-contained, stating the problem and all steps of the solution.
Clearly it wouldn't be reasonable for me to ask you to go to all that work for the entire problem set, but if there's a problem you're unsure of, it's worth the effort to submit it in that format.
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