Title: Chapter 2 Rational Numbers
Course: quiz duplicate error

Q: Simplify each element in the matrix.
[Image]
- [Image]
- [Image]
- [Image]
- [Image]
A: [Image]

Q: Simplify the expression.

–4 + 7
- 3
- 11
- –11
- –3
A: 3

Q: Simplify the expression.

–10 + 7
- –3
- 3
- –17
- 17
A: –3

Q: Simplify the expression.

–9 + 10
- 1
- –1
- 19
- –19
A: 1

Q: Simplify the expression.

–4.8 – (–4.9) + 5.7
- –4
- –5.8
- 5.8
- –15.4
A: 5.8

Q: Simplify the expression.

[Image]
- [Image]
- [Image]
- [Image]
- [Image]
A: [Image]

Q: Simplify the expression.

–6.9 – (–3.8) + 5.2
- 2.1
- –15.9
- –5.5
- –2.1
A: 2.1

Q: Simplify the expression.

[Image]
- –7
- –6
- 7
- 6
A: 7

Q: Simplify the expression.

[Image]
- 13
- –13
- 12
- –12
A: 12

Q: Simplify the expression.

–3.6 – (–2.5) + 4.8
- 3.7
- –1.3
- –3.7
- –10.9
A: 3.7

Q: Simplify the expression.

[Image]
- –22
- 22
- 21
- –21
A: 22

Q: Simplify the expression.

–1.6 – (–6.2) + 6.1
- –13.9
- –1.7
- 10.7
- –10.7
A: 10.7

Q: Simplify the expression.

–7.4 – (–7.9) + 3.5
- –11.8
- –4
- –18.8
- 4
A: 4

Q: Simplify the expression.

–1 + 2
- 1
- 3
- –3
- –1
A: 1

Q: Simplify the expression.

[Image]
- 23
- –22
- 22
- –23
A: 23

Q: Simplify the expression.

–1.5 – (–6.6) + 3.7
- –11.8
- 8.8
- –8.8
- –4.4
A: 8.8

Q: Simplify the expression.

[Image]
- 7
- 8
- –7
- –8
A: 8

Q: Simplify the expression.

[Image]
- –22
- –23
- 22
- 23
A: 23

Q: Simplify the expression.

–5 + 3
- –2
- 8
- –8
- 2
A: –2

Q: Simplify the expression.

–4.3 – (–4.5) + 3.5
- –5.3
- –12.3
- 3.7
- –3.7
A: 3.7

Q: Simplify the expression.

–4.6 – (–2.9) + 3.2
- –1.5
- –10.7
- 1.5
- –4.3
A: 1.5

Q: Simplify the expression.

–7 + 6
- –13
- –1
- 13
- 1
A: –1

Q: Simplify the expression.

–8 + 2
- 6
- 10
- –10
- –6
A: –6

Q: Simplify the expression.

–4.7 – (–7.5) + 8.6
- –3.6
- 11.4
- –20.8
- –11.4
A: 11.4

Q: Simplify the expression.

–3 + 10
- 7
- 13
- –7
- –13
A: 7

Q: Simplify the expression.

–4.8 – (–6.8) + 2.5
- –4.5
- –9.1
- 4.5
- –14.1
A: 4.5

Q: Simplify the expression.

3.7 – 1.8 – 3.67 + 4.4 – 1.34
- –7.51
- –1.29
- 1.29
- 8.63
A: 1.29

Q: Simplify the expression.

[Image]
- –81
- –9
- –18
- 81
A: 81

Q: Simplify the expression.

–6.5(–4.9)
- –16.25
- –31.85
- –12.25
- 31.85
A: 31.85

Q: Simplify the expression.

[Image]
- –16
- –8
- –64
- 64
A: 64

Q: Simplify the expression.

2.7 – 5.3 – 3.08 + 1.3 – 1.96
- –8.94
- –0.18
- –6.34
- 6.34
A: –6.34

Q: Simplify the expression.

[Image]
- –24
- 512
- –512
- 64
A: –512

Q: Simplify the expression.

7.5(–6.2)
- 8.25
- –6.82
- 46.5
- –46.5
A: –46.5

Q: Simplify the expression.

[Image]
- 81
- –81
- –12
- –27
A: 81

Q: Simplify the expression.

[Image]
- 20
- 125
- –625
- 625
A: –625

Q: Simplify the expression.

[Image]
- –14
- 13
- –13
- 14
A: 14

Q: Simplify the expression.

–8.2(–1.4)
- –11.48
- –14.76
- –2.52
- 11.48
A: 11.48

Q: Simplify the expression.

[Image]
- –16
- 16
- 4
- 8
A: –16

Q: Simplify the expression.

[Image]
- 12
- 6
- 36
- –36
A: –36

Q: Simplify the expression.

[Image]
- –32
- 16
- –10
- 32
A: –32

Q: Simplify the expression.

[Image]
- –9
- –6
- 9
- –3
A: 9

Q: Simplify the expression.

3.6(–4.9)
- 4.32
- –5.88
- –17.64
- 17.64
A: –17.64

Q: Simplify the expression.

[Image]
- –64
- 16
- 64
- –12
A: –64

Q: Simplify the expression.

7.5(–1.5)
- –11.25
- –3.45
- 17.25
- 11.25
A: –11.25

Q: Simplify the expression.

–0.5(–7.6)
- –0.7
- –3.8
- 3.8
- –10.64
A: 3.8

Q: Simplify the expression.

1.5 – 1.6 – 2.23 + 4.1 – 4.31
- –10.74
- –2.54
- 2.54
- 1.92
A: –2.54

Q: Simplify the expression.

[Image]
- –20
- –625
- –125
- 625
A: 625

Q: Simplify the expression.

[Image]
- 72
- –18
- –72
- 18
A: –18

Q: Simplify the expression.

3.6 – 1.3 – 5.74 + 2.6 – 3.09
- 3.93
- 7.55
- –9.13
- –3.93
A: –3.93

Q: Simplify the expression.

–7.5(–3.6)
- 27
- –27
- –14.25
- –6.84
A: 27

Q: Simplify the expression.

3.5(–8.4)
- –29.4
- –15.96
- 6.65
- 29.4
A: –29.4

Q: Simplify the expression.

[Image]
- –16
- –64
- 256
- –256
A: 256

Q: Simplify the expression.

–2.8(–3.7)
- –10.36
- –4.81
- –3.64
- 10.36
A: 10.36

Q: Simplify the expression.

–7.7(–3.3)
- –13.09
- –5.61
- –25.41
- 25.41
A: 25.41

Q: Simplify the expression.

[Image]
- –343
- 49
- 21
- 343
A: –343

Q: Simplify the expression.

3.5 – 1.8 – 3.13 + 4.1 – 4.64
- 1.97
- –10.17
- –1.97
- 4.29
A: –1.97

Q: Simplify the expression.

[Image]
- –27
- –729
- 729
- 81
A: –729

Q: Simplify the expression.

[Image]
- 36
- –72
- 72
- –36
A: –36

Q: Simplify the expression.

2.9 – 5.2 – 2.69 + 5.4 – 2.86
- 2.93
- –2.45
- –13.25
- 2.45
A: –2.45

Q: Simplify the expression.

[Image]
- –10
- –100
- 100
- –20
A: 100

Q: Simplify the expression.

[Image]
- –14
- –42
- 42
- 14
A: –14

Q: Which number line model can you use to simplify –1 + 10?
- [Image] –1 + 10 = 11
- [Image] –1 + 10 = 9
- [Image] –1 + 10 = –11
- [Image] –1 + 10 = 11
A: [Image] –1 + 10 = 9

Q: Which number line model can you use to simplify –7 + 4?
- [Image] –7 + 4 = 11
- [Image] –7 + 4 = –11
- [Image] –7 + 4 = 11
- [Image] –7 + 4 = –3
A: [Image] –7 + 4 = –3

Q: Which number line model can you use to simplify –3 + 7?
- [Image] –3 + 7 = 10
- [Image] –3 + 7 = 10
- [Image] –3 + 7 = 4
- [Image] –3 + 7 = –10
A: [Image] –3 + 7 = 4

Q: Simplify the expression.

–3 + 5
- 8
- 2
- –8
- –2
A: 2

Q: Which number line model can you use to simplify –3 + (–7)?
- [Image] –3 + (–7) = 4
- [Image] –3 + (–7) = –4
- [Image] –3 + (–7) = –10
- [Image] –3 + (–7) = –4
A: [Image] –3 + (–7) = –10

Q: Simplify the expression.

–1 + 8
- 7
- –9
- –7
- 9
A: 7

Q: Simplify the expression.

(–8 – c)(–1)
- 8 + c
- –8 + c
- 8 – c
- –8 – c
A: 8 + c

Q: A mountain climber ascends a mountain to its peak. The peak is 11,800 ft above sea level. The climber then descends 240 ft to meet a fellow climber. Find the climber’s elevation above sea level after meeting the other climber.
- 12,040 ft
- –11,560 ft
- 11,560 ft
- 9,400 ft
A: 11,560 ft

Q: Which number line model can you use to simplify –5 + 6?
- [Image] –5 + 6 = 11
- [Image] –5 + 6 = 1
- [Image] –5 + 6 = –11
- [Image] –5 + 6 = 11
A: [Image] –5 + 6 = 1

Q: Simplify the expression.

(–5 – c)(–1)
- –5 + c
- 5 + c
- 5 – c
- –5 – c
A: 5 + c

Q: Which number line model can you use to simplify –8 + (–2)?
- [Image] –8 + (–2) = –6
- [Image] –8 + (–2) = 6
- [Image] –8 + (–2) = –10
- [Image] –8 + (–2) = 6
A: [Image] –8 + (–2) = –10

Q: A mountain climber ascends a mountain to its peak. The peak is 12,740 ft above sea level. The climber then descends 200 ft to meet a fellow climber. Find the climber’s elevation above sea level after meeting the other climber.
- 12,540 ft
- –12,540 ft
- 10,740 ft
- 12,940 ft
A: 12,540 ft

Q: A mountain climber ascends a mountain to its peak. The peak is 12,980 ft above sea level. The climber then descends 370 ft to meet a fellow climber. Find the climber’s elevation above sea level after meeting the other climber.
- 9,280 ft
- 12,610 ft
- –12,610 ft
- 13,350 ft
A: 12,610 ft

Q: Simplify the expression.

[Image]
- –18n + 81mn – 153np
- –2n + 9m – 17p
- –2n + 9mn – 17np
- –2n – 9mn + 17np
A: –2n + 9mn – 17np

Q: Simplify the expression.

(4 – c)(–1)
- 4 + c
- –4 – c
- –4 + c
- 4 – c
A: –4 + c

Q: Simplify the expression.

[Image]
- –18
- 18
- –9
- 9
A: –9

Q: Simplify the expression.

–8 + 7
- –15
- 1
- –1
- 15
A: –1

Q: Simplify the expression.

[Image]
- –5
- –35
- 35
- 5
A: 5

Q: Simplify the expression.

[Image](49m + 7)
- [Image]m + 21
- [Image]m + 7
- 147m + [Image]
- [Image]m + [Image]
A: [Image]m + [Image]

Q: Simplify the expression.

[Image](36m + 9)
- [Image]m + 9
- [Image]m + [Image]
- 72m + [Image]
- [Image]m + 18
A: [Image]m + [Image]

Q: Which number line model can you use to simplify –6 + (–3)?
- [Image] –6 + (–3) = –3
- [Image] –6 + (–3) = 3
- [Image] –6 + (–3) = 3
- [Image] –6 + (–3) = –9
A: [Image] –6 + (–3) = –9

Q: Simplify the expression.

(–3 – c)(–1)
- 3 – c
- –3 + c
- 3 + c
- –3 – c
A: 3 + c

Q: Simplify the expression.

–9 + 6
- 15
- –3
- –15
- 3
A: –3

Q: Simplify the expression.

[Image](–12m + 38)
- [Image]m + 38
- –24m + [Image]
- [Image]m + 76
- [Image]m + [Image]
A: [Image]m + [Image]

Q: Simplify the expression.

–4 + 9
- 13
- –13
- –5
- 5
A: 5

Q: Which number line model can you use to simplify –4 + 5?
- [Image] –4 + 5 = –9
- [Image] –4 + 5 = 9
- [Image] –4 + 5 = 9
- [Image] –4 + 5 = 1
A: [Image] –4 + 5 = 1

Q: Simplify the expression.

[Image]
- 21
- 7
- –21
- –7
A: 7

Q: Simplify the expression.

[Image](21m + 35)
- 84m + [Image]
- [Image]m + [Image]
- [Image]m + 140
- [Image]m + 35
A: [Image]m + [Image]

Q: Which number line model can you use to simplify –4 + 7?
- [Image] –4 + 7 = 3
- [Image] –4 + 7 = 11
- [Image] –4 + 7 = 11
- [Image] –4 + 7 = –11
A: [Image] –4 + 7 = 3

Q: Which number line model can you use to simplify –2 + 9?
- [Image] –2 + 9 = 11
- [Image] –2 + 9 = –11
- [Image] –2 + 9 = 11
- [Image] –2 + 9 = 7
A: [Image] –2 + 9 = 7

Q: Simplify the expression.

[Image](–14m + 34)
- [Image]m + 34
- –28m + [Image]
- [Image]m + 68
- [Image]m + [Image]
A: [Image]m + [Image]

Q: Simplify the expression.

–5 + 4
- 1
- –1
- –9
- 9
A: –1

Q: Simplify the expression.

[Image](–12m + 20)
- [Image]m + 20
- –24m + [Image]
- [Image]m + 40
- [Image]m + [Image]
A: [Image]m + [Image]

Q: The temperature on a summer afternoon is 85°F. Define a variable and write an expression to find the temperature after it changes. Then evaluate your expression for a decrease of 11 degrees Fahrenheit.
- 11 + c; 11 + (–85) = 96
- 85 + c; 85 + (–11) = 74
- 11 – c; 11 – (–85) = 74
- 85 – c; 85 – (–11) = 96
A: 85 + c; 85 + (–11) = 74

Q: Evaluate –x + (–8.8) for x = 0.4.
- 8.4
- –9.2
- –8.4
- 9.2
A: –9.2

Q: Evaluate b – 2a – c for a = –7, b = 3, and c = –7.
- 24
- 3
- 10
- –18
A: 24

Q: The temperature on a summer afternoon is 78°F. Define a variable and write an expression to find the temperature after it changes. Then evaluate your expression for a decrease of 5 degrees Fahrenheit.
- 78 + c; 78 + (–5) = 73
- 5 – c; 5 – (–78) = 73
- 78 – c; 78 – (–5) = 83
- 5 + c; 5 + (–78) = 83
A: 78 + c; 78 + (–5) = 73

Q: 25 ¸ (–5)
- 5
- 125
- –5
- –125
A: –5

Q: Evaluate –x + 6.1 for x = –0.6.
- 6.7
- –6.7
- 5.5
- –5.5
A: 6.7

Q: Evaluate –x + 8.1 for x = 4.1.
- –12.2
- 4
- –4
- 12.2
A: 4

Q: Evaluate b – 2a – c for a = –9, b = 8, and c = –5.
- 12
- 21
- –15
- 31
A: 31

Q: 24 ¸ (–8)
- –3
- 192
- –192
- 3
A: –3

Q: Simplify 5 – 8 using a number line.
- [Image]
- [Image]
- [Image]
- [Image]
A: [Image]

Q: Evaluate [Image] for x = 3 and y = –2.
- –1
- 7
- 1
- –7
A: 1

Q: Simplify 1 – 7 using a number line.
- [Image]
- [Image]
- [Image]
- [Image]
A: [Image]

Q: You made two deposits to your bank account this month. One deposit was $16.09, and the second deposit was $14.34. Your balance at the end of the month is $72.31, and you made no withdrawals. Write and evaluate an expression for your balance at the beginning of the month.
- $72.31 – ($16.09 – $14.34); $70.56
- $72.31 + ($16.09 – $14.34); $74.06
- $72.31 – $16.09 – $14.34; $41.88
- $72.31 + $16.09 + $14.34; $102.74
A: $72.31 – $16.09 – $14.34; $41.88

Q: –12 ¸ (–2)
- 24
- –6
- –24
- 6
A: 6

Q: The closing price of a share of stock in Company XYZ is $25.69 on Thursday. If the change from the closing price on Wednesday is –$0.75, find the closing price on Wednesday.
- $26.44
- $24.94
- $25.75
- $25.06
A: $26.44

Q: Simplify 9 – 10 using a number line.
- [Image]
- [Image]
- [Image]
- [Image]
A: [Image]

Q: The product of two negative numbers is ____ positive.
- always
- sometimes
- never
A: always

Q: Evaluate x(–y + z) for x = –1, y = 2, and z = 1.
- 1
- –1
- 3
- –3
A: 1

Q: Evaluate x(–y + z) for x = –4, y = 4, and z = –8.
- –24
- 48
- 8
- 16
A: 48

Q: Evaluate –x + 8.8 for x = 5.3.
- –14.1
- –3.5
- 3.5
- 14.1
A: 3.5

Q: Simplify –4 – 2 using a number line.
- [Image]
- [Image]
- [Image]
- [Image]
A: [Image]

Q: Simplify 8 – 8 using a number line.
- [Image]
- [Image]
- [Image]
- [Image]
A: [Image]

Q: Evaluate [Image] for x = –2 and y = 3.
- 4
- 8
- –4
- –8
A: 4

Q: Evaluate x(–y + z) for x = 3, y = 3, and z = 1.
- –6
- 10
- 12
- –8
A: –6

Q: You made two deposits to your bank account this month. One deposit was $17.92, and the second deposit was $15.33. Your balance at the end of the month is $72.31, and you made no withdrawals. Write and evaluate an expression for your balance at the beginning of the month.
- $72.31 + ($17.92 – $15.33); $74.90
- $72.31 – $17.92 – $15.33; $39.06
- $72.31 + $17.92 + $15.33; $105.56
- $72.31 – ($17.92 – $15.33); $69.72
A: $72.31 – $17.92 – $15.33; $39.06

Q: Evaluate b – 2a – c for a = –6, b = 3, and c = –6.
- 9
- –15
- 21
- 3
A: 21

Q: Evaluate [Image] for x = 3 and y = 4.
- –11
- –5
- 5
- 11
A: 11

Q: –54 ¸ (–9)
- –486
- –6
- 6
- 486
A: 6

Q: Evaluate –x + 4.7 for x = –6.4.
- –11.1
- 11.1
- 1.7
- –1.7
A: 11.1

Q: Simplify 8 – 1 using a number line.
- [Image]
- [Image]
- [Image]
- [Image]
A: [Image]

Q: Evaluate –x + 2.7 for x = 0.9.
- –1.8
- –3.6
- 1.8
- 3.6
A: 1.8

Q: The expression [Image]can be used to calculate the change in temperature in degrees Fahrenheit for an increase in altitude a, measured in feet. A plane starts on the ground and then rises 23,000 ft. Find the change in temperature at the altitude of the plane.
- 126.5 degrees
- –126.5 degrees
- –125 degrees
- 125 degrees
A: –126.5 degrees

Q: Evaluate [Image] for a = [Image] and b = [Image].
- [Image]
- [Image]
- [Image]
- [Image]
A: [Image]

Q: Simplify 7(499) using the Distributive Property.
- 3500
- 3493
- 3514
- 3486
A: 3493

Q: Name the property the equation illustrates.

8.2 + (–8.2) = 0
- Inverse Property of Addition
- Addition Property of 0
- Identity Property of Addition
- Inverse Property of Multiplication
A: Inverse Property of Addition

Q: Name the property the equation illustrates.

[Image]
- Inverse Property of Multiplication
- Multiplication Property of –1
- Identity Property of Addition
- Identity Property of Multiplication
A: Identity Property of Multiplication

Q: If a is a negative number, then [Image] is ____ equal to –1.
- always
- sometimes
- never
A: never

Q: Simplify 3(499) using the Distributive Property.
- 1494
- 1506
- 1497
- 1500
A: 1497

Q: –10z – 28z
- 38z
- –38z
- 18
- 18z
A: –38z

Q: Name the property the equation illustrates.

8 ´ [Image] = 1
- Identity Property of Division
- Inverse Property of Addition
- Inverse Property of Multiplication
- Multiplication Property of –1
A: Inverse Property of Multiplication

Q: Evaluate [Image] for m = –4, n = 2, and p = 1.5.
- –10
- –19
- –30
- –22
A: –30

Q: Write an algebraic expression for the phrase.

–2 times the quantity q minus 3
- –2q – 3
- q(–2 – 3)
- [Image]
- –2(q – 3)
A: –2(q – 3)

Q: 17z – 7z
- 10z
- 24
- –10z
- 24z
A: 10z

Q: 32 ¸ (–8)
- –4
- 4
- 256
- –256
A: –4

Q: Use the Distributive Property to find the price of 7 CDs that cost $14.99 each.
- $105.00
- $98.00
- $104.93
- $105.70
A: $104.93

Q: 2 ¸ (–1)
- –2
- –2
- 2
- 2
A: –2

Q: Write an algebraic expression for the phrase.

–2 times the quantity a minus 6
- [Image]
- a(–2 – 6)
- –2(a – 6)
- –2a – 6
A: –2(a – 6)

Q: 72 ¸ (–9)
- 8
- 648
- –8
- –648
A: –8

Q: –4z – 16z
- 20z
- –20z
- 12z
- 12
A: –20z

Q: Write an algebraic expression for the phrase.

–8 times the quantity n minus 7
- [Image]
- –8n – 7
- –8(n – 7)
- n(–8 – 7)
A: –8(n – 7)

Q: –6 ¸ (–6)
- –1
- 36
- 1
- –36
A: 1

Q: 11z – 28z
- –17z
- 17z
- 39z
- 39
A: –17z

Q: Write an algebraic expression for the phrase.

–9 times the quantity m minus 3
- m(–9 – 3)
- –9m – 3
- –9(m – 3)
- [Image]
A: –9(m – 3)

Q: Simplify 9(601) using the Distributive Property.
- 5382
- 5418
- 5409
- 5400
A: 5409

Q: Name the property the equation illustrates.

0 + x = x
- Identity Property of Addition
- Multiplication Property of 0
- Commutative Property of Addition
- Inverse Property of Multiplication
A: Identity Property of Addition

Q: Use the Distributive Property to find the price of 5 CDs that cost $15.99 each.
- $80.00
- $80.50
- $79.95
- $75.00
A: $79.95

Q: For every real number x, y, and z, the statement [Image] is ____ true.
- always
- sometimes
- never
A: always

Q: Name the property the equation illustrates.

2 ´ 0.5 = 1
- Multiplication Property of –1
- Inverse Property of Addition
- Identity Property of Division
- Inverse Property of Multiplication
A: Inverse Property of Multiplication

Q: Name the property the equation illustrates.

–4 ´ [Image] = 1
- Inverse Property of Multiplication
- Inverse Property of Addition
- Multiplication Property of –1
- Identity Property of Division
A: Inverse Property of Multiplication

Q: Teesha is in the French club. There are 37 students in the club. The French teacher will pick 3 students at random to guide visiting students from France. What is the probability that Teesha will not be picked as a guide?
- [Image]
- [Image]
- [Image]
- [Image]
A: [Image]

Q: A cell phone company orders 500 new phones from a manufacturer. If the probability of a phone being defective is 2.6%, predict how many of the phones are likely to be defective. Round to the nearest whole number.
- 16 phones
- 13 phones
- 11 phones
- 130 phones
A: 13 phones

Q: Name the property the equation illustrates.

5 + 7.5 = 7.5 + 5
- Associative Property of Addition
- Inverse Property of Addition
- Commutative Property of Addition
- Inverse Property of Multiplication
A: Commutative Property of Addition

Q: If you roll a number cube 60 times and use the results to calculate the experimental probability of rolling a 1, the experimental probability of rolling a 1 will ____ be less than the theoretical probability of rolling a 1.
- sometimes
- always
- never
A: sometimes

Q: Refer to the spinner below.
[Image]

Find P(even and not shaded).
- [Image]
- [Image]
- 0
- [Image]
A: [Image]

Q: In a batch of 850 calculators, 5 were found to be defective. What is the probability that a calculator chosen at random will be defective? Write the probability as a percent. Round to the nearest tenth of a percent if necessary.
- 0.6%
- 0.8%
- 74.6%
- 99.4%
A: 0.6%

Q: In a batch of 960 calculators, 8 were found to be defective. What is the probability that a calculator chosen at random will be defective? Write the probability as a percent. Round to the nearest tenth of a percent if necessary.
- 74.4%
- 0.8%
- 99.2%
- 1.1%
A: 0.8%

Q: Name the property the equation illustrates.

[Image]
- Inverse Property of Multiplication
- Commutative Property of Multiplication
- Commutative Property of Addition
- Associative Property of Addition
A: Commutative Property of Multiplication

Q: Name the property the equation illustrates.

–1 + (5 + 7) = (–1 + 5) + 7
- Commutative Property of Multiplication
- Commutative Property of Addition
- Associative Property of Addition
- Inverse Property of Addition
A: Associative Property of Addition

Q: The probability of the complement of an event is ____ less than the probability of the event itself.
- sometimes
- always
- never
A: sometimes

Q: Name the property the equation illustrates.

7 + (4 + 4) = (7 + 4) + 4
- Inverse Property of Addition
- Associative Property of Addition
- Commutative Property of Multiplication
- Commutative Property of Addition
A: Associative Property of Addition

Q: Name the property the equation illustrates.

8 + (4 + 6) = (8 + 4) + 6
- Inverse Property of Addition
- Commutative Property of Multiplication
- Associative Property of Addition
- Commutative Property of Addition
A: Associative Property of Addition

Q: Name the property the equation illustrates.

9 + (8 + 1) = (9 + 8) + 1
- Commutative Property of Multiplication
- Associative Property of Addition
- Inverse Property of Addition
- Commutative Property of Addition
A: Associative Property of Addition

Q: Name the property the equation illustrates.

5 + (–5) = 0
- Inverse Property of Addition
- Inverse Property of Multiplication
- Addition Property of 0
- Identity Property of Addition
A: Inverse Property of Addition

Q: Name the property the equation illustrates.

[Image]
- Commutative Property of Addition
- Commutative Property of Multiplication
- Associative Property of Addition
- Inverse Property of Multiplication
A: Commutative Property of Multiplication

Q: Name the property the equation illustrates.

(ab)3 = a(b3)
- Inverse Property of Multiplication
- Associative Property of Addition
- Associative Property of Multiplication
- Commutative Property of Multiplication
A: Associative Property of Multiplication

Q: You have the numbers 1–24 written on slips of paper. If you choose one slip at random, what is the probability that you will not select a number which is divisible by 3?
- [Image]
- [Image]
- [Image]
- [Image]
A: [Image]

Q: Name the property the equation illustrates.

[Image]
- Associative Property of Addition
- Commutative Property of Addition
- Inverse Property of Multiplication
- Commutative Property of Multiplication
A: Commutative Property of Multiplication

Q: Name the property the equation illustrates.

8 + 3.4 = 3.4 + 8
- Inverse Property of Addition
- Associative Property of Addition
- Commutative Property of Addition
- Inverse Property of Multiplication
A: Commutative Property of Addition

Q: Suppose you choose a marble from a bag containing 2 red marbles, 5 white marbles, and 3 blue marbles. You return the first marble to the bag and then choose again. Find P(red and blue).
- [Image]
- [Image]
- [Image]
- [Image]
A: [Image]

Q: Name the property the equation illustrates.

1 + (3 + 4) = (1 + 3) + 4
- Inverse Property of Addition
- Associative Property of Addition
- Commutative Property of Multiplication
- Commutative Property of Addition
A: Associative Property of Addition

Q: Name the property the equation illustrates.

7.4 + (–7.4) = 0
- Inverse Property of Addition
- Inverse Property of Multiplication
- Identity Property of Addition
- Addition Property of 0
A: Inverse Property of Addition

Q: Name the property the equation illustrates.

[Image]
- Associative Property of Addition
- Inverse Property of Multiplication
- Commutative Property of Multiplication
- Commutative Property of Addition
A: Commutative Property of Multiplication

Q: You toss a coin and roll a number cube. Find P(heads and an even number).
- [Image]
- [Image]
- [Image]
- 1
A: [Image]

Q: Name the property the equation illustrates.

[Image]
- Associative Property of Addition
- Commutative Property of Multiplication
- Inverse Property of Multiplication
- Commutative Property of Addition
A: Commutative Property of Multiplication

Q: A cell phone company orders 300 new phones from a manufacturer. If the probability of a phone being defective is 3.3%, predict how many of the phones are likely to be defective. Round to the nearest whole number.
- 10 phones
- 8 phones
- 12 phones
- 99 phones
A: 10 phones

Q: Name the property the equation illustrates.

7 + 4.5 = 4.5 + 7
- Associative Property of Addition
- Inverse Property of Addition
- Commutative Property of Addition
- Inverse Property of Multiplication
A: Commutative Property of Addition

Q: Teesha is in the French club. There are 26 students in the club. The French teacher will pick 3 students at random to guide visiting students from France. What is the probability that Teesha will not be picked as a guide?
- [Image]
- [Image]
- [Image]
- [Image]
A: [Image]

Q: You roll a standard number cube. Find P(number greater than 1)
- [Image]
- [Image]
- [Image]
- [Image]
A: [Image]

Q: At the grocery store, you buy a carton of milk for $1.95, a loaf of bread for $0.85, and a bag of cookies for $2.05. Use mental math to find the total cost of the groceries.
- $5.15
- $4.90
- $5.00
- $4.85
A: $4.85

Q: You roll a standard number cube. Find P(number greater than 2)
- [Image]
- [Image]
- [Image]
- [Image]
A: [Image]

Q: You roll a standard number cube. Find P(number greater than 3)
- [Image]
- [Image]
- [Image]
- [Image]
A: [Image]

Q: Refer to the spinner below.
[Image]

Find the odds of the spinner landing on a dark section.
- 2 : 1
- 2 : 4
- 4 : 2
- 1 : 5
A: 2 : 1

Q: If A and B are independent events and P(A) and P(B) are both greater than [Image], then P(A and B) is ____ greater than 1.
- sometimes
- always
- never
A: never

Q: In a word game, you choose a tile from a bag, replace it, and then choose another. If there are 20 vowels and 12 consonants, what is the probability you will choose a consonant and then a vowel?
- [Image]
- [Image]
- [Image]
- [Image]
A: [Image]

Q: A basket contains 11 pieces of fruit: 4 apples, 5 oranges, and 2 bananas. Jonas takes a piece of fruit at random from the basket, and then Beth takes a piece at random. What is the probability that Jonas will get an orange and Beth will get an apple?
- [Image]
- [Image]
- [Image]
- [Image]
A: [Image]

The art teachers at a school planned to take 300 students on a field trip to an art museum. One teacher found that 6 of her 36 students could identify a painting by Picasso before the field trip.

a. | What is the experimental probability that a student in the teacher’s class could identify a painting by Picasso before the field trip? Write the probability as a percent. Round to the nearest tenth. experimental probability that a student in the teacher’s class could identify a painting by Picasso before the field trip? Write the probability as a percent. Round to the nearest tenth.
b. | Based on P(students identifying Picasso painting) from part (a), predict how many of the 300 students would be able to identify a painting by Picasso before the field trip?

Are the two events dependent or independent? Explain.

a. | Toss a dime, and then toss a quarter.
b. | Pick a card from a deck of cards. Keep the card and pick another.

Q: Thomas, Jenna, and Maria are playing a game. They have a bag that contains 42 white tiles and 4 red tiles. Each player takes turns picking a tile at random and does not return the tiles to the bag. The player who draws a red tile first is the winner. In the first round, Thomas goes first, then Jenna, and then Maria, and none of them draws a red tile. What is the probability that Thomas will win the game on his second turn?
- [Image]
- [Image]
- [Image]
- [Image]
A: [Image]

Q: In a word game, you choose a tile from a bag, replace it, and then choose another. If there are 21 vowels and 15 consonants, what is the probability you will choose a consonant and then a vowel?
- [Image]
- [Image]
- [Image]
- [Image]
A: [Image]

Justify each step.

a. 7 + 2(x – 3) + 5x | = 7 + 2x – 6 + 5x
b. | = 7 + 2x + (–6) + 5x
c. | = 7 + (–6) + 2x + 5x
d. | = 7 + (–6) + (2 + 5)x
e. | = 7 + (–6) + 7x
f. | = 1 + 7x
g. | = 7x + 1

Simplify the expression. Justify each step.
13x – 4 + 9x

Q: Suppose you choose a marble from a bag containing 5 red marbles, 2 white marbles, and 4 blue marbles. You return the first marble to the bag and then choose again. Find P(red and blue).
- [Image]
- [Image]
- [Image]
- [Image]
A: [Image]

The theoretical probability that a man will have some form of color blindness is 8%, whereas the theoretical probability of a woman having color blindness is 0.5%.

a. | If you have a group of 700 men, predict how many of them will be color blind.
b. | If you have a group of 400 women, predict how many of them will be color blind.
c. | If you combine both groups and pick one person at random, what is the probability that person will be color blind? Write the probability as a percent and round to the nearest tenth of a percent if necessary.

Q: Thomas, Jenna, and Maria are playing a game. They have a bag that contains 45 white tiles and 4 red tiles. Each player takes turns picking a tile at random and does not return the tiles to the bag. The player who draws a red tile first is the winner. In the first round, Thomas goes first, then Jenna, and then Maria, and none of them draws a red tile. What is the probability that Thomas will win the game on his second turn?
- [Image]
- [Image]
- [Image]
- [Image]
A: [Image]

Q: You have three $1 bills, four $5 bills, and two $10 bills in your wallet. You select a bill at random. Without replacing the bill, you choose a second bill at random. Find P($10 then $1).
- [Image]
- [Image]
- [Image]
- [Image]
A: [Image]

The theoretical probability that a man will have some form of color blindness is 8%, whereas the theoretical probability of a woman having color blindness is 0.5%.

a. | If you have a group of 500 men, predict how many of them will be color blind.
b. | If you have a group of 400 women, predict how many of them will be color blind.
c. | If you combine both groups and pick one person at random, what is the probability that person will be color blind? Write the probability as a percent and round to the nearest tenth of a percent if necessary.

a. Simplify the following expressions.
[Image]
b. What is the sign of the final answer when the exponent is odd? When the exponent is even?
c. Use your answer from part (b) to simplify [Image].

Q: A small software company has three customer service representatives. After a week of observation, the supervisor of the customer service department determines that there is an 85% probability that a customer service representative will be on the phone with a customer at any given time. What is the probability of all three representatives being on the phone at the same time? Round to the nearest percent if necessary.
- 28%
- 72%
- 39%
- 61%
A: 61%

Q: A basket contains 7 pieces of fruit: 3 apples, 2 oranges, and 2 bananas. Jonas takes a piece of fruit at random from the basket, and then Beth takes a piece at random. What is the probability that Jonas will get an orange and Beth will get an apple?
- [Image]
- [Image]
- [Image]
- [Image]
A: [Image]