Answers for Math Practice Problem Module 3

1.                     C, 27.47

2.                     B, 20/11 days

3.                     A, 7:22

4.                     A, 7:05

5.                     AB, 7:38, 7:30

6.                     A, 2:26.01 & 5:12.178

7.                     A, 12

8.                     A, 17 and 115

9.                     C, 83

10.                  A, 16.7

11.                  A, 14 lbs silver

12.                  D, 24

13.                  B, 3A+B-1

14.                  A, Ö3

15.                  D, 100

16.                  D, 0.6532

17.                  B, 12

18.                  A, not equal to 0

19.                  C, independent

20.                  A, P(AandB)=P(A)·

           P(B½A)

21.                  B, P(A and B) = 0

22.                  D, independent

23.                  A, events “ACE” and “HEART”

24.                  A, 1:2

25.                  B, 0.20

26.                  B, 0.30

27.                  B, 0.60

28.                  A, dispersion

29.                  A, range

30.                  A, class boundary

31.                  C, number of accidents

32.                  B, discrete variable

33.                  B, 25

34.                  B, median

35.                  B, 38.3

36.                  C, cos(-A) = cos A

37.                  C, 4p

38.                  C, sin²A – cos²B = 0

39.                  B, -4/3

40.                  B, x+y = 90⁰

41.                  D, -csc60⁰

42.                  A, p/3, 5/3p

43.                  D, IV

44.                  D, 123

45.                  B, 20

46.                  A, 60⁰

47.                  C, 18 and 24

48.                  B, -64

49.                  D, 110⁰

50.                  C, 2 + Ö3i