INSTRUCTOR’S SOLUTIONS MANUAL — Beginning & Intermediate Algebra with Applications & Visualization, 4th Edition — Gary K. Rockswold, Terry A. Krieger — ISBN 9780134474304

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, 2 Chapter 1 Beginning and Intermediate Algebra

27. The number 92 is a composite number because it has factors other than itself and 1; 92  2  2  23.
28. The number 69 is a composite number because it has factors other than itself and 1; 69  3  23.
29. The number 225 is a composite number because it has factors other than itself and 1; 225  3  3  5  5.
30. The number 900 is a composite number because it has factors other than itself and 1;
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900  2  2  3  3  5  5.
31. The number 149 is a prime number because its only factors are itself and 1.
32. The number 101 is a prime number because its only factors are itself and 1.
33. 6  2  3
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34. 8  2  2  2
35. 12  2  2  3
36. 20  2  2  5
37. 32  2  2  2  2  2
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38. 100  2  2  5  5
39. 39  3 13
40. 51  3 17
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41. 294  2  3  7  7
42. 175  5  5  7
43. 300  2  2  3  5  5
44. 455  5  7 13
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45. The value of the expression 3 x, when x  5, is 3 x  3  5   15.

46. The value of the expression x  10, when x  8, is x  10  8  10  18.

47. The value of the expression 9  x, when x  4, is 9  x  9  4  5.
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48. The value of the expression 13 x, when x  0, is 13 x  13  0   0.

x x 32
49. The value of the expression , when x  32, is   4.
8 8 8
5 5 5 5
50. The value of the expression , when x  8, is    1.
x 3 x 3 83 5
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51. The value of the expression 3  x  1 , when x  5, is 3  x  1  3  5  1   3 6   18.

52. The value of the expression 7  6  x  , when x  3, is 7  6  x   7  6  3   7  3  21.

x x 6
 1, when x  6, is  1   1  3  1  4.
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53. The value of the expression
2 2 2
6 6 6
54. The value of the expression 3  , when x  2, is 3   3   3  3  0.
x x 2
55. When x  8 and y  14, x  y  8  14  22.

56. When x  2 and y  3, 5 xy   5  2  3  30.


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