Page 184 - Basic College Mathematics with Early Integers
P. 184
CHAPTER 2 REVIEW 161
Normal Record High and Low Temperatures for Selected Locations (in degrees Fahrenheit)
Max Min Max Min
Berlin, Germany 107 -4 Barrow,Alaska 79 -56
Raleigh, NC 105 -9 London, England 99 2
Houston,TX 107 7 Cairo, Egypt 118 34
Miami, FL 98 30 Sydney,Australia 114 32
Los Angeles, CA 112 28 Shanghai, China 104 10
Bucharest, Romania 105 -18 Reykjavik, Iceland 76 -3
Geneva, Switzerland 101 -3 Capetown, South Africa 105 28
Providence, RI 104 -13 Buenos Aires,Argentina 104 22
Stockholm, Sweden 97 -26 Bombay, India 110 46
(2.2) Represent each quantity by an integer.
13. A gold miner is working 1435 feet down in a mine. 14. A mountain peak is 7562 meters above sea level.
Graph each integer in the list on the same number line.
15. -2, -5, 0, 5 16. -7, -1, 0, 7
7 6 5 4 3 2 1 0 1 2 3 4 5 6 7 7 6 5 4 3 2 1 0 1 2 3 4 5 6 7
Simplify.
17. ƒ -12 ƒ 18. ƒ 0 ƒ 19. - ƒ 6 ƒ
20. -(-9) 21. - ƒ -9 ƒ 22. -(-2)
Insert 6 or 7 between each pair of integers to make a true statement.
23. -18 -20 24. -5 5 25. ƒ -123 ƒ - ƒ -198 ƒ 26. 8 - ƒ -12 ƒ - ƒ -16 ƒ
Find the opposite of each integer.
27. -12 28. -(-3)
Answer true or false for each statement.
29. If a 6 b, then a must be a negative number. 30. The absolute value of an integer is always 0 or
a positive number.
31. A negative number is always less than a positive 32. If a is a negative number, then -a is a positive
number. number.
