course Mth 151
2.43. A) 1 B) 3 C) 4 D) 0 E) 2 F) 10 G) 2 H) 17
5. n (A U B) = 8 + 14 – 5 = 17
6. n (A U B) = 16 + 28 – 9 = 35
9. n (A) = -35 + 15 + 55 = 35
10. n (B) = -20 + 6 + 30 = 16
12. U=9, A= 20 B=9 and the intersection of A and B is 5
15. U=12, A=16 B=14 C=18 (A U B)= 20 (B U C)=10 (A U C)= 6 and (A U B U C) = 15
18. U=2 A=5 B=10 C=13 (A U B)= 5 (A U C)= 20 ( B U C)= 1 and (A U B U C) = 6
20. U=12 S= 3 G= 2 and the intersection is 5
21. A) 18 B) 15 C) 20 D) 5
24. A)0 B)1 C)3 D)0 E)6
25. A) 37 B) 22 C) 50 D) 11 E) 25 F) 11
27. A) 11 B) 22 C) 11 D) 43
30. I tried and tried to figure this one out, but I just couldn’t do it. I couldn’t get my numbers to match up right with 130.
You need to be submitting the open q_a_ and open query according to instructions.
I can't tell much from just your answers. But I expect if you're doing the problems, you are preparing adequately for the tests.