Read e-book online Algebra for College Students, 7th Edition PDF

By Margaret L. Lial

ISBN-10: 0321715403

ISBN-13: 9780321715401

Is there whatever extra appealing than an “A” in Algebra? to not the Lial crew! Marge Lial, John Hornsby, and Terry McGinnis write their textbooks and accompanying assets with one objective in brain: giving scholars the entire instruments they should be successful.   With this revision, the Lial group has extra subtle the presentation and workouts in the course of the textual content. they give a number of fascinating new assets for college kids that might supply additional support whilst wanted, whatever the studying setting (classroom, lab, hybrid, on-line, etc)–new examine abilities actions within the textual content, an extended video software to be had in MyMathLab and at the Video assets on DVD, and extra!

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Extra resources for Algebra for College Students, 7th Edition

Sample text

The numerical coefficient in the term - 7yz 2 is . Simplify each expression. See Examples 1 and 2. 11. 21m + p2 12. 31a + b2 13. - 121x - y2 14. - 101 p - q2 15. 5k + 3k 16. 6a + 5a 17. 7r - 9r 18. 4n - 6n 19. - 8z + 4w 20. - 12k + 3r 21. a + 7a 22. s + 9s 23. - 12d - ƒ2 24. - 13m - n2 25. - 1- x - y2 26. - 1- 3x - 4y2 Simplify each expression. See Examples 1–4. 27. - 12y + 4y + 3 + 2y 28. - 5r - 9r + 8r - 5 29. - 6p + 5 - 4p + 6 + 11p 30. - 8x - 12 + 3x - 5x + 9 31. 31k + 22 - 5k + 6 + 3 32. 51r - 32 + 6r - 2r + 4 35.

B) Find the difference between the profit or loss in 2010 and that in 2009. (c) Find the difference between the profit or loss in 2008 and that in 2007. 124. The graph shows annual returns in percent for Class A shares of the AIM Charter Fund for the years 2002 through 2008. 46 2002 2003 2004 2005 2006 2007 2008 Year Source: Invesco Aim. (a) Find the sum of the percents for the years shown in the graph. (b) Find the difference between the returns in 2003 and 2002. (c) Find the difference between the returns in 2008 and 2007.

58 62. # 3 - 8 2 # 3 2 8 8 1172 + 1132 5 5 EXERCISES 63–68 FOR INDIVIDUAL OR GROUP WORK When simplifying the expression 3x + 4 + 2x + 7 to 5x + 11, some steps are usually done mentally. Work Exercises 63–68 in order, providing the property that justifies each statement in the given simplification. ) 3x + 4 + 2x + 7 63. 64. 65. 66. = 13x + 42 + 12x + 72 = 3x + 14 + 2x2 + 7 = 3x + 12x + 42 + 7 = 13x + 2x2 + 14 + 72 67. = 13 + 22x + 14 + 72 68. = 5x + 11 69. By the distributive property, a1b + c2 = ab + ac.

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Algebra for College Students, 7th Edition by Margaret L. Lial


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