# College Algebra, 5th Edition by James Stewart, Lothar Redlin, Saleem Watson

By James Stewart, Lothar Redlin, Saleem Watson

Discover ways to imagine mathematically and advance actual problem-solving talents with Stewart, Redlin, and Watson's university ALGEBRA, 5th version. this simple and easy-to-use algebra booklet might help you research the basics of algebra in a number of sensible methods. The booklet positive aspects new instruments that can assist you be triumphant, corresponding to studying goals ahead of each one part to organize you for what you are approximately to profit, and an inventory of formulation and key recommendations after each one part that aid make stronger what you've got realized. additionally, the e-book comprises many real-world examples that exhibit you the way arithmetic is used to version in fields like engineering, company, physics, chemistry, and biology.

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Extra resources for College Algebra, 5th Edition

Sample text

There are also real numbers, such as 12, that cannot be expressed as a ratio of integers and are therefore called irrational numbers. It can be shown, with varying degrees of difficulty, that these numbers are also irrational: 13 15 3 2 2 p 3 p2 8 CHAPTER P | Prerequisites The set of all real numbers is usually denoted by the symbol ‫ޒ‬. ” Figure 1 is a diagram of the types of real numbers that we work with in this book. 317 3 π2 Integers Natural numbers . . , −3, −2, −1, 0, 1, 2, 3, . . FIGURE 1 The real number system Every real number has a decimal representation.

Does this boat qualify for the race? (b) A sailboat has length 65 ft and displaces 600 ft3. What is the largest possible sail area that could be used and still allow the boat to qualify for this race? Here V is the velocity of the flow in ft/s; A is the crosssectional area of the channel in square feet; S is the downward slope of the channel; p is the wetted perimeter in feet (the distance from the top of one bank, down the side of the channel, across the bottom, and up to the top of the other bank); and n is the roughness coefficient (a measure of the roughness of the channel bottom).

A (a) 1 3 D ϭ 22rh ϩ h 2 55. 18a b 2 6 3/2 2/3 63. a (c) 88. (a) 49–68 ■ Simplify the expression and eliminate any negative exponent(s). Assume that all letters denote positive numbers. ✎ 61. 3 12 ✎ 87. 3 43. 2108 Ϫ 232 ✎ 53. (b) 86. (a) 31 Rationalize the denominator. 1 16 85. (a) Simplify the expression. ■ Rational Exponents and Radicals (a) ✎ 83. 34. 2x4y4 5 35. 2a6b7 ■ 83–88 | 2 3 Ϫ4 2/3 a r xϪ3y6 8z4 3sϪ2 1/3 4t b b 1/3 Ϫ1 69–82 ■ Simplify the expression and express the answer using rational exponents.