# Math 155

This page contains updates to the printed version of thetext *The Mathematical Collage* as published by Thomson Publishing. Note that these updates have already been incorporated into the online version of the text.

### Changes to Answers

Section 1.1 (29): Answer should be 601

Chapter 1 Test (13): One answer is 47,506 + 47,506 = 95,012

Section 2.1 (27) (a) $77.00 (b) $148.49

Section 2.1 (29) $12,987.50

Section 2.1 (31) Yotek stock

Section 3.1 (15): Answer for curb should be $1904.56

Section 3.1 (19) 37.9%

Section 3.4 (19): *t* = 755.1, *i* = 783.3

Chapter 3 Review (1): 307 square feet

Chapter 3 Review (3): 12 boxes for $857.76

Chapter 3 Review (7): 845.5 gallons, 7053.7 pounds

Chapter 3 Review (16): *p* = 28.3

Do-it-yourselfer (5): $227.72

Do-it-yourselfer (7): $418.32

Section 4.2 (23): $67.50

Chapter 4 Review (1): 7/19

Chapter 4 Review (9): 54,144:1

Chapter 4 Review (11): - $0.31

Chapter 4 Review (12): $1,664,749

Chapter 4 Review (22): 17.3 - 28.1

Chapter 4 Test (4c): bimodal

### Changes to Chapter 1

page 19 Example 9, Solution: T = 0101 0100

page 19 Example 10: The numbers given in the example are incorrect. They should read

0100 1000, 0100 1001, 0010 0000, 0101 0100, 0100 1000, 0100 0101, 0101 0010, 0100 0101.

page 41, first line: 7853 × 629 ≈

### Changes to Chapter 2

Math and Taxes, page 97, the top four lines should read

Tax from Table 1 ($260.15 + 28% of excess over $1341)

Tax = $260.15 + 0.28*(1503.84 - 1341) = 260.15 + 45.60 = $305.75

Total Tax Withheld = $25.38 + $305.75 = $331.13

Thus, the net income is $1750 - $331.13 = $1418.87

### Changes to Chapter 3

page 112 Example 2, Solution: Part (b) should use 60.75 instead of 60.25 in two places.

page 113 Example 5: Parts (a) and (b) are reversed from the answers.

page 115, Problem 13: Note that the angle at home plate is 90 degrees and that the distances down the first and third base lines are measured starting at home plate.

page 145 and 146, in several places, 454 grams are in a pound.

### Changes to Chapter 4

page 189: The two bullets at the bottom should have 2.5%, not 5% and 0.15%, not 1.3%.

page 195, Problem 19: At the end of the second line, the word is "was".

### Changes to Chapter 5

Chapter 5 Review (3): Should read "How long is a punt in football that travels from your own 17 yard-line to the opponent's 38 yard-line?"

Math in Nursing, page 246 (10): "intramuscular" (not intamuscular)