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Algebra and Trigonometry (3rd Edition) by Cynthia Young

By Cynthia Young

The 3rd variation of Cynthia Young’s Algebra & Trigonometry brings jointly all of the parts that experience allowed teachers and beginners to effectively “bridge the gap” among school room guide and autonomous homework by way of overcoming universal studying obstacles and construction self assurance in students’ skill to do arithmetic. Written in a transparent, unmarried voice that speaks to scholars and mirrors how teachers converse in lecture, Young’s hallmark pedagogy permits scholars to develop into autonomous, winning beginners. diversified workout forms and modeling initiatives retain the training clean and motivating. during this variation, younger keeps her culture of fostering a love for succeeding in arithmetic via introducing inquiry-based studying tasks, supplying newcomers a chance to grasp the cloth with extra freedom whereas reinforcing mathematical abilities and instinct.

The seamless integration of Cynthia Young’s Algebra & Trigonometry third variation with WileyPLUS, a research-based, on-line surroundings for potent instructing and studying, keeps Young’s imaginative and prescient of creating scholar self assurance in arithmetic since it takes the guesswork out of learning via supplying them with a transparent roadmap: what to do, how you can do it, and whether or not they did it correct.

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Additional info for Algebra and Trigonometry (3rd Edition)

Example text

3 x + 2 5 3 # 4 = 12 1 2#4 1#3 2 - = # - # 3 4 3 4 4 3 Rewrite fractions applying the LCD. a. b. = 2(4) - 1(3) 3(4) Eliminate the parentheses. = 8 - 3 12 Combine terms in the numerator. = 5 12 Solution (b): Rewrite 4 with an understood 1 in the denominator. = 4 2 , 3 1 Dividing by a fraction is equivalent to multiplying by its reciprocal. = 2#1 3 4 Multiply numerators and denominators, respectively. = 2 12 Reduce the fraction to simplest form. = 1 6 Solution (c): 2 . 5 ϭ 10 Determine the LCD. 5x + 3(2) x 3 + = 2 5 (2)(5) Rewrite fractions in terms of the LCD.

9aϪ2 b3 ) x-3 y2 3 12(x-2 y) 49. s 2 c -2 38. a b 3 a-2 b3 a4 b5 3 b - 3(- x3 y2) 3 t y2(- b2 x5) 47. (x y ) 2 5 5 [-2(x3) y-4] 51. Write 28 # 163 # (64) as a power of 2 : 2? 48. Ϫ2x2(Ϫ2x3) 52. Write 39 # 815 # (9) as a power of 3 : 3? In Exercises 53–60, express the given number in scientific notation. 53. 27,600,000 54. 144,000,000,000 55. 93,000,000 56. 1,234,500,000 57. 0000000567 58. 00000828 59. 000000123 60. 000000005 63. 3 ϫ 104 64. 8 ϫ 10Ϫ3 In Exercises 61–66, write the number as a decimal.

Simplify expressions using correct order of operations. Evaluate algebraic expressions. Apply properties of real numbers. ■ ■ Understand that rational and irrational numbers are mutually exclusive and complementary subsets of real numbers. Learn the order of operations for real numbers. The Set of Real Numbers A set is a group or collection of objects that are called members or elements of the set. If every member of set B is also a member of set A, then we say B is a subset of A and denote it as B ( A.

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