MATH 012
MATH 012
UNIT 1 HOMEWORK ASSIGNMENTS
General Instructions
1. Do ALL your homework in your notebook. Be sure to label each question.
2. Be sure to read the directions very carefully, since you are often asked to do more than one thing in a problem.
3. Be sure to write out all your work, since method is as important as getting the correct answer.
4. The answers to the odd-numbered problems are in the back of the book, beginning on page A-10. The answers to the even–numbered problems and the extra questions in this handout are all included at the end of this handout.
5. If you have difficulty with a problem, mark the problem and write a note in the margin about your difficulty. In this way, when you go over homework in class, you can be ready with your questions.
6. Homework includes reading and taking notes on sections to be covered in the next class.
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CHAPTER 1 & 2
A. Text: Read page 75 – 80, CONCEPTS in the green margin.
Read page 146 – 150, CONCEPTS in the green margin.
B. Exercises: Be sure to show all work for homework exercises.
Chapter 1 Review, page 75 – 80: 1, 2, 3, 10, 11, 14, 15, 32, 34, 37 - 40 all, 52 - 56 all, 59, 60, 65,67 - 73 odd, 79, 83 - 101 odd, 111, 113, 115, 119, 123, 127
Chapter 2 Review, page 146 – 150: Problems typed in BOLD should be done without a calculator. #1, 4, 7, 11, 13, 18, 20, 22, Without a calculator do 24 & 30, 37, Without a calculator do 40 & 41, 50, Without a calculator do 57 & 58, 74, Without a calculator do 78 & 83, 87, 89, 91, 95 - 103 odd, 109, 110, 111, 112, 115 - 118 all
Check your answers on page A-11, A-12 and A-14 and note any that you did not understand. Answers to even numbered problems are given in these pages.
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CHAPTER 3
A. Text: Read page 210 – 213, CONCEPTS in the green margin.
B. Exercises: Chapter 3 Review, page 210 – 213: 1 - 5 all, 9, 11 - 16 all, 20, 22, 23 - 27 all, 29 to 35 all, 42, 43, 45, 47, 48, 49, 52, 54 - 57 all, 59 - 71 odd, 72 75 - 79 odd.
Check your answers on page A-15 and note any that you did not understand.
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CHAPTER 4
A. Text: Read pages 295 – 299, CONCEPTS in the green margin.
B. Exercises: Chapter 4 Review, page 295 – 299: 1 – 8, 11, 12, 13,Without a calculator do 17 - 23 odd, 26, 27, 30, 31, 34, 35, 37, 39, Without a calculator do 41, 43, 45, 48, 49, 51, 53, Without a calculator do the following. Show all steps. 55 - 58 all, 63, 65, 66, 68, 69, 71, 72, 77, 80,
For problems 81, 83, 86, 90, 91:
a) Determine the LCD,
b) Write each fraction as an equivalent fraction with the new LCD,
c) Simplify. Show all steps.
d) Write the answer in simplest mixed number form.
Do 93, 94, 96, 97, 98, 99, 101, 103, 105, 107 108.
Check your answers on page A-17 and note any that you did not understand.
Read and take notes (RTN) on section 5.1 in preparation for the next class.
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CHAPTER 5
Section 5.1 – An Introduction to Decimals
A. Text: Read page 308 –312.
B. Exercises 5.1, page 312 –316: 1, 6, 7, 8, 9, 10, 14, 15, 17, 19, 23, 25, 27, 29, 33, 37, 41, 45, 47 – 50 all, 51, 52, 54, 55, 57, 59, 62, 63, 73, 75, 77, 79, 80.
Check answers in the back of the book. Even numbered answers are given in these pages.
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Section 5.2 – Adding and Subtracting Decimals
A. Text: Read page 316 – 319.
B. Exercises 5.2, page 320 – 323: 1, 2, 43, 47, 49, 51, 57, 59, 62, 64, 65, 79, 80, 81, 82. Check answers.
C. Read and take notes (RTN) on sections 5.3 and 5.4 in preparation for next class.
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Section 5.3 – Multiplying Decimals
A. Text: Read page 323 – 328.
B. Exercises 5.3, page 328 – 331: 3, 4, 5, 49, 51, 53, 55, 59, 63, 67, 71, 73, 77, 78, 79, 81, 83, 96, 97, 98, 99, 100. Check answers.
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Section 5.4 – Dividing Decimals
A. Text: Read page 331 – 337.
B. Exercises 5.4, page 337 – 341: 1 – 5 all, 8, 10, 17, 18, 45 ( 51 odd, 53, 55, 57, 59, 63, 67, 70, 72, 73, 75, 77, 79, 80, 91, 92, 94, 95, 96, 97, 98. Check answers.
C. Read Estimation, page 341 – 342.
Exercises Estimation, page 342–343: 1–10 all, 11, 13, 15, 17.
D. Read and take notes (RTN) on section 5.5 in preparation for next class.
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Section 5.5 – Fractions and Decimals
A. Text: Read page 343 – 348.
B. Exercises 5.5, page 348 – 351: 1, 2, 5–12 all, 15, 21, 27, 31, 33, 39, 45, 47, 49, 51, 57, 59, 63, 67, 71, 75, 79, 83, 89, 91, 95, 99, 101, 107, 108, 109, 110, 111, 112 Check answers.
C. Read and take notes (RTN) on section 5.6 in preparation for next class.
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Section 5.6 – Solving Equations Containing Decimals
A. Text: Read page 351 – 355.
B. Exercises 5.6, page 355 – 358: 1–9 all, 13, 15, 21, 23, 25, 27, 33, 39, 41, 45, 51, 57, 67, 71, 74, 76, 78, 81, 83, 84, 85. Check answers.
C. Read and take notes (RTN) on section 5.7 and 9.4 (p. 578 - 580 The Pythagorean Theorem) in preparation for next class.
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Section 5.7 – Square Roots
A. Text: Read page 358 – 361.
B. Exercises 5.7, page 361 – 364: 1–14 all, 19, 20, 21, 25, 31, 37, 43, 49, 55 ( 69 odd, 71, 73, 83, 85, 86, 87, 88, 89, 90.
C. The Real Numbers, page 365: Use diagram on this page to do 1–19 all.
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Section 9.4 – Properties of Triangles (the Pythagorean Theorem)
A. Text: Read page 578 – 580.
B. Exercises 9.4, page 581 – 584: 4, 15, 16, 17, 37, 39, 41, 43, 45, 55, 56, 57, 58.
C. Read and take notes (RTN) on section 6.1 in preparation for next class.
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Section 6.1 – The Rectangular Coordinate System
A. Text: Read 382 –387.
B. Exercises 6.1, page 387 – 390: 1–8 all, 9–31 odd, 34, 39, 45 ( 52 all. Check answers.
C. Key Concept, page 425: 1 ( 6 all
D. Read and take notes (RTN) on section 7.1 in preparation for class 12.
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Complete Review Sheet for MATH 012 Test 1.
Section 5.1 – Part B
6. 428.96
8.
10a) 0.9
b) 0.63
c) 0.111
d) 0.0027
14. – 0.6
48. >
50. <
52. 0.00689, .00697, 0.007
54.
|Dollars |Cents |
|$0.50 |50 |
|$0.05 |5 |
|$0.55 |55 |
|$5.00 |500 |
|$0.01 |1 |
62. candle making, crafts, hobbies, folk dolls, and modern art
80. –9
Section 5.2 – Part B
2. difference
62a) 500.5 million
b) 29.7 million
c) 0.4 million
64. 20.01 miles
80. [pic]
82. – 43
Section 5.3 – Part B
4. right, zeros
78. $162.20, $187.95
96. –6
98. 60
100. [pic]
Section 5.4 – Part B
2. bar
4. mode
8. left
10. smaller
18a) no
b) no
c) yes
70. 2,000,000
72. 1.75 cm.
80. mean: 5.8
median: 5.8
mode: 5.8
range: 0.1
92. [pic]
94. [pic]
96. –1/8
98. –x
Section 5.4 – Part B
Estimation, page 345
2. approx. $1,480
4. approx. $1,340
6. approx. 6 cubic feet
8. approx. $84
10. approx. $480
Section 5.5 – Part B
2. terminating
6a) <
b) >
8a) [pic]
b) [pic]
10.
12. decimals (none are repeating or more than 2 places)
110. 3
112. x + 10
108. – 19
Section 5.6 – Part B
2. distributive
4. variable
6. [pic]
[pic]
[pic]
8a) division, subtraction
b) subtraction, division
74. 0.5 g
76. 3.5
78. 2500 balloons
84. 10 ½
Section 5.7 – Part B
2. perfect
4. non-terminating
6. is approximately equal to
8. [pic]
10. [pic]
12. 0.4
14. [pic]
20.
86. 2x – 4
88. term (it’s just added)
90. <
Section 5.7 – Part C
The Real Numbers, page 365
2.
4. {0, 1, 2, 3, 4, 5, …}
6. the set of all fractions with integers for their numerator and denominator (denominator can’t be 0) or any number that can be written as a terminating or repeating decimal.
8. true
10. false
12. true
14. true
16. false
18a) 10
b) 0, 10
c) – 2, 0, 10
d) – 2, – 1.2, [pic], 0, [pic], 2.75, 10
e) [pic]
f) all
Section 9.4 – Part B
4. hypotenuse
16. it checks (25 = 25), so it is a right triangle
56. 17 ft
Section 6.1 – Part B
2. variables, solution
4. system, number
6. quadrants
8. coordinate
34. (F,4), (F,3), (F,2)
46. -9
48. 15
50. -4
52. -3
Section 6.1 – Part C
2. (3,2)
4. (0,0)
6. Graph
-----------------------
[pic]
0.8333
[pic]
2.75
[pic]
–3
–4
–3
–2
–1
4
3
2
1
0
[pic]
[pic]
–4
–2
4
2
0
[pic]
[pic]
[pic]
–2.375
5
–3
–2
–1
4
3
2
1
0
–1.21
–3.29
–4.25
–5
2
1
–4
–3
–2
–1
0
ANSWERS
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