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Download Algebra I (Cliffs Quick Review) by Jerry Bobrow PDF

By Jerry Bobrow

By way of pinpointing the belongings you really want to understand, no one does it larger than CliffsNotes. This quickly, powerful instructional is helping you grasp middle algebraic options -- from monomials, inequalities, and analytic geometry to capabilities and diversifications, roots and radicals, and note difficulties -- and get the absolute best grade.
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Extra resources for Algebra I (Cliffs Quick Review)

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2,4} 2. {3, 4, 5, 6, 7} 3. False 4. 3n + 6 5. 96 6. F 4/27/01 9:37 AM Page 40 Chapter 4 EQUATIONS, RATIOS, AND PROPORTIONS Chapter Check-In ❑ Axioms of equality ❑ Solving equations ❑ Solving proportions for value with variables and solving equations are often considered the basis of algebra. Working Equations An equation is a mathematical sentence, a relationship between numbers and/or symbols. Axioms of equality For all real numbers a, b, and c, the following are some basic rules for using the equal sign.

F 4/27/01 9:38 AM Page 47 Chapter 4: Equations, Ratios, and Proportions 47 Example 12: Solve this proportion for t. s is to t as r is to q Rewrite. s r t =q Cross multiply. sq = rt Divide both sides by r. sq rt r = r sq r =t Solving proportions for value Follow the procedures given in Examples 11 and 12 to solve for the unknown. Example 13: Solve for x. 4=2 x 5 Cross multiply. (4)(5) = 2x 20 = 2x Divide both sides by 2. F 48 4/27/01 9:38 AM Page 48 CliffsQuickReview Algebra I Chapter Checkout Q&A 1.

F 4/27/01 9:37 AM Page 37 Chapter 3: Terminology, Sets, and Expressions 37 Comparing sets Equal sets are those that have the exact same members—{1, 2, 3} = {3, 2, 1}. Equivalent sets are sets that have the same number of members— {1, 2, 3} + {a, b, c}. Operations with sets The union of two or more sets is a set containing all of the members in those sets. Example 1: Find the union. {1, 2, 3} , {3, 4, 5} = {1, 2, 3, 4, 5} The union of sets with members 1, 2, 3 and 3, 4, 5 is the set with members 1, 2, 3, 4, 5.

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