Use the number line for Exercises 39–42. Fill in the blank with or to make the statement true. a b 0 c d 39) b _____ c 40) 0 _____ a 41) 2 _____ b 42) 3 _____ c Objective 3: Evaluate Expressions Involving Absolute Value 43) Your friend asks you to explain to him the meaning of the absolute value of a number. What would you tell him? 44) The absolute value of the number 3 is the same as the absolute value of what other number? Evaluate each absolute value expression. 45) 019 0 46) 087 0 47) 017 0 48) 013 0 49) 00 0 50) 00 0 51) 035 0 52) 015 0 53) 024 0 54) 056 0 55) `5 8 13 ` 56) ` 19 23 ` 57) 011.6 0 58) 00.54 0 Objective 4: Find the Opposite of a Number 59) How are 5 and the opposite of 5 related on the number line? 60) What number is its own opposite? Find the opposite of each number. 61) 1 62) 8 63) 47 64) 54 65) 2.3 66) 8.7 67) 23 68) 16 69) 3 4 70) 5 6 71) 3 5 9 72) 5 7 11 73) 1.978 74) 0.013 For Exercises 75–82, answer true or false. 75) 07 0 0 76) 018 0 023 0 77) (6) 0 78) 10 (10) 79) 08 0 012 0 80) 00 0 (1) 81) (13) 013 0 82) (07 0 ) 7 Use the number line for Exercises 83–88. Fill in the blank with or to make the statement true. a b 0 c d 83) a _____ 0 84) d _____ c 85) d _____ c 86) (a) _____ b 87) 0a 0 _____ b 88) 0b 0 _____ a R1) Explain how visualizing signed numbers on a number line helped you to understand absolute value and opposites. R2) What would happen if you did NOT use parentheses when fi nding the opposite of a number? 724 CHAPTER 10 Signed Numbers www.mhhe.com/messersmith
messersmith_power_basic_college_1e_ch4_7_10
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