Basic Mathematics for College Students

162 Chapter 2 The Integers VOCABULARY Fill in the blanks. is the (or inverse) of 8. When we change a number to its opposite, we ...

GIN RUMMY After a losing round, a card player must deduct the value of each of the cards left in his hand from his previous poi ...

ACCOUNTING Complete the balance sheet below. Then determine the overall financial condition of the company by subtracting the t ...

2.4 Multiplying Integers 165 SECTION 2.4 Multiplying Integers Multiplication of integers is very much like multiplication of who ...

This factor decreases Look for a by 1 each time. pattern here. 4( 3 )? 4( 2 )? 4( 1 )? 4( 0 ) 0 4( 1 )  4 4( 2 ) ...

2.4 Multiplying Integers 167 Self Check 2 Multiply: a. b. c. d. Now TryProblems 33, 37, 41, and 43 4,100(20,000) 34(15) 12( ...

The properties of multiplication that were introduced in Section 1.3, Multiplying Whole Numbers, are also true for integers. 168 ...

2.4 Multiplying Integers 169 EXAMPLE (^5) Evaluate: a. b. StrategyWhen possible, we will use the commutative and/or associative ...

In Example 6, part a, was raised to an even power, and the answer was positive. In parts b and c, and were raised to odd powers, ...

2.4 Multiplying Integers 171 EXAMPLE (^7) Evaluate: StrategyWe will rewrite the expression as a product of repeated factors, and ...

172 Chapter 2 The Integers c a. b. c. d. 2. a. 63 b. 24 c. 510 d.82,000,000 a. 72 b. 54 c. 4. a. 72 b. 54 c. 5. a. b. 28 6. a. ...

The product of an even number of negative integers is and the product of an odd number of negative integers is. Find each absol ...

BUILDING A PIER Apile driveruses a heavy weight to pound tall poles into the ocean floor. If each strike of a pile driver on th ...

2.5 Dividing Integers 175 DECK SUPPORTS After a winter storm, a homeowner has an engineering firm inspect his damaged deck. The ...

176 Chapter 2 The Integers and because We can use the relationship between multiplication and division to help develop rules for ...

2.5 Dividing Integers 177 EXAMPLE (^1) Divide and check the result: a. b. c. d. StrategyWe will use the rule for dividing two in ...

178 Chapter 2 The Integers b.Find the absolute values: and. Check: The result checks. c.Find the absolute values: and. Check: Th ...

2.5 Dividing Integers 179 Self Check 3 Divide, if possible: a. b. Now TryProblems 45 and 47 0 (6)  12 0 Self Check 4 SELLING ...

180 Chapter 2 The Integers a. b. c. d. 2. a. 9 b. 6 c. 43 d. 20 3. a.undefined b. 0 4.The price was reduced by $120 each month. ...

GUIDED PRACTICE Divide and check the result.See Example 1. Divide and check the re ...