By R. David Gustafson, Peter D. Frisk
Get the grade you will want in algebra with Gustafson and Frisk's starting AND INTERMEDIATE ALGEBRA! Written with you in brain, the authors offer transparent, no-nonsense reasons to help you research tough strategies conveniently. arrange for assessments with quite a few assets situated on-line and through the textual content equivalent to on-line tutoring, bankruptcy Summaries, Self-Checks, preparing workouts, and Vocabulary and thought difficulties. Use this article, and you can research strong mathematical talents that can assist you either in destiny mathematical classes and in genuine lifestyles!
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Extra resources for Beginning and Intermediate Algebra: An Integrated Approach
3 ؒ 13 7. 3 7 3 5 Ϭ 5 2 3 1 12. ϩ 4 2 8. Round each decimal to two decimal places. 17. 2 EXERCISES REVIEW Decide whether the following statements are true or false. 1. 6 is an integer. 3. 4. 5. 7. 18. 24521 2. 1 is a natural number. 2 21 is a prime number. No prime number is an even number. 8ϾϪ2 6. Ϫ 3 Ͻ Ϫ 2 9 Յ 0 Ϫ9 0 8. 0 Ϫ11 0 Ն 10 Place an appropriate symbol in each box to make the statement true. 9. 3 ϩ 7 11. 0 Ϫ2 0 10 2 3 2 1 ϭ 7 7 7 12. 4 ϩ 8 11 10. VOCABULARY AND CONCEPTS Fill in the blanks.
0625. In problems involving percent, the word of usually indicates multiplication. 0625(8,500). 24 Chapter 1 Real Numbers and Their Basic Properties EXAM PLE 10 Auto loans Juan signs a one-year note to borrow $8,500 to buy a car. If the rate of interest is 614 % , how much interest will he pay? Solution For the privilege of using the bank’s money for one year, Juan must pay 614 % of $8,500. 25 The word of means times. 25 interest. Self Check ❚ How much interest will Juan pay if the rate is 9%? Self Check Answers 1.
Comment In the expression x 5 (called an exponential expression or a power of x), x is the base and 5 is the exponent. The exponent of 5 indicates that a base of x is to be used as a factor five times. 5 factors of x x ϭxؒxؒxؒxؒx 5 In expressions such as x or y, the exponent is understood to be 1: x ϭ x1 and y ϭ y1 In general, we have the following definition. Natural-Number Exponents If n is a natural number, then n factors of x x ϭxؒxؒxؒ %ؒx n EXAM PLE 1 Write each expression without exponents.
Beginning and Intermediate Algebra: An Integrated Approach by R. David Gustafson, Peter D. Frisk