Answers to HW

Use these answers to CHECK your work.  You should show at least one or two interim steps to show how you arrived at most of your answers.  

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pg 446 # 1-48

1.

b9

25.

0.006667

2.

p12

26.

0.375

3.

a9

27.

0.000000981

4.

x4y2

28.

129

5.

16m5

29.

768,000

6.

108a3p2

30.

5,440,000,000

7.

128x3y2

31.

5.88 ´ 10-2

8.

81w7

32.

7.69 ´ 10-4

9.

1

33.

2.33 ´ 10-8

10.

1/p2

34.

5.23 ´ 108

11.

1

35.

7.95 ´ 103

12.

x4/y6

36.

1.234 ´ 109

13.

p2

37.

1/27

14.

1/3b3

38.

16

15.

4

39.

6

16.

9y4/x

40.

75

17.

1/4p9q3

41.

2/5

18.

m5/n7

42.

37

19.

6a5/b4

43.

2 ´ 106

20.

w6z12 

44.

1.52 ´ 107

21.

18pq6

45.

5 ´ 10-9

22.

5m4n3

46.

8 ´ 10-4

23.

81w8

47.

9 ´ 10-13

24.

1/81xy

48.

9 ´ 1010