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PRINTED BY: [email protected] Printing is for personal, private use only. No part of this book may be reproduced or transmitted without publisher's prior permission. Violators will be prosecuted. Solution Rewrite the expression in scientific notation. open parenthesis 3.6 × 10 to the 8 power close parenthesis open parenthesis 2 × 10 to the 3 Now rewrite using the commutative property. Student Practice 16 Evaluate using scientific notation open parenthesis 55,000 close parenthesis open parenthe A-10A-11 A.1 Exercises: Verbal and Writing Skills, Exercises 1–6 1. In the expression a 3 , identify the base and the exponent. 2. When a negative number is raised to an odd power, is the result positive or negative? 3. When a negative number is raised to an even power, is the result positive or negative? 4. Will a n always be negative? Why or why not? 5. What are the square roots of 121? Why are there two answers? 6. What is the principal square root? Evaluate. 7. 2 5 8. 7 3 9. ( 5) 2 10. ( 4) 3 11. 6 2 12. 3 4 13. 1 4 14. 3 2 15. 16. 17. (0.7) 2 18. ( 0.5) 2 19. (0.04) 3 20. (0.03) 3 Find the value of each expression containing a principal square root. 21. 22. 23. Page 7 of 32 Print | Beginning & Intermediate Algebra 1/31/2014 ;...
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PRINTED BY: [email protected] Printing is for personal, private use only. No part of this book may be reproduced or transmitted without publisher's prior permission. Violators will be prosecuted. 24. 25. 26. 27. 28. 29. 30. 31. 32. Follow the proper order of operations to evaluate each of the following. 33. 15 ÷ 3 + 7( 4) 34. 16 ÷ ( 8) 6( 2) 35. 5 2 + 3(1 8) 36. 8 2 4(1 12) 37. 5[(1.2 0.4) 0.8] 38. 2[(3.6 + 0.3) 0.9] 39. 40. 41. A-11A-12 42. 43. 44. 45. 46. Page 8 of 32 Print | Beginning & Intermediate Algebra 1/31/2014 ;...
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PRINTED BY: [email protected] Printing is for personal, private use only. No part of this book may be reproduced or transmitted without publisher's prior permission. Violators will be prosecuted. Simplify. Rewrite all expressions with positive exponents only. 47. 3 2 48. 4 3 49. x 5 50. y 4 Multiply. 51. (3 x )( 2 x 5 ) 52. (5 y 2 )(3 y ) 53. ( 11 x 2 y 2 )( x 4 y 7 ) 54. ( 15 x 4 y )( 6 xy 5 ) 55. 4 x 0 y 56. 6 a 2 b 0 57. (3 xy ) 0 (7 xy ) 58. 8 a 2 b 3 ( 6 a ) 0 59. ( 6 x 2 yz 0 )( 4 x 0 y 2 z ) 60. (5 0 a 3 b 4 )( 2 a 3 b 0 ) 61. 62. Divide. Simplify your answers. 63. 64. 65. 66. 67. 68. 69. 70. Page 9 of 32 Print | Beginning & Intermediate Algebra 1/31/2014 ;...
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