Deck 9: More on Inequalities

Question 1

Write interval notation.

Answer 1

C

Question 2

Answer 2

D

Question 3

Choose the number that is a solution of the inequality.
a - 5 < -15

A)11
B)-6
C)-11
D)-8

Answer 3

C

Question 4

Question 5

Choose the number that is a solution of the inequality.

Question 6

Question 7

Write interval notation.

Question 8

Write interval notation.

A)(-6, -2]
B)[2, 6)
C)(2, 6]
D)[-6, -2)

Question 9

Write interval notation.

Question 10

Write interval notation.

A)[0, 4)
B)[-4, 0)
C)(0, 4]
D)(-4, 0]

Question 11

Write interval notation.

Question 12

Write interval notation.

Question 13

Choose the number that is a solution of the inequality.
12n + 9 > 11n + 4

A)-7
B)-8
C)-4
D)-6

Question 14

Write interval notation.

A)(2, 6]
B)[2, 6)
C)(2, 6)
D)[2, 6]

Question 15

Write interval notation.

Question 16

Choose the number that is a solution of the inequality.

Question 17

Write interval notation.
Write interval notation for the graph.

A)[-2, 2]
B)[-2, 2)
C)(-2, 2]
D)(-2, 2)

Question 18

Choose the number that is a solution of the inequality.
f + 11 < 2

A)-10
B)-6
C)-9
D)-7

Question 19

Question 20

Write interval notation.

Question 21

Solve.

Question 22

Solve and graph. Write the result in interval notation.

Question 23

Solve and graph. Write the result in interval notation.

Question 24

Solve and graph. Write the result in interval notation.
3x < -6

Question 25

Solve.

Question 26

Solve.

Question 27

Solve.

Question 28

Solve and graph. Write the result in interval notation.

Question 29

Solve.

Question 30

Solve and graph. Write the result in interval notation.
a + 4 > 6

Question 31

Solve.

Question 32

Solve.

Question 33

Solve and graph. Write the result in interval notation.

Question 34

Solve and graph. Write the result in interval notation.
z - 4 < -6

Question 35

Solve and graph. Write the result in interval notation.
0.5b > 3

Question 36

Solve.

Question 37

Solve.

Question 38

Solve.

Question 39

Solve and graph. Write the result in interval notation.

Question 40

Solve.

Question 41

Solve.

Question 42

Solve.

Question 43

Solve.

Question 44

Solve.
A salesperson has two job offers. Company A offers a weekly salary of $560 plus commission of 16% of sales. Company B offers a weekly salary of $1120 plus commission of 8% of sales. What is the amount of sales above
Which Company A's offer is the better of the two?

A)$3500
B)$7000
C)$7100
D)$14,000

Question 45

Solve.

Question 46

Solve.

Question 47

Solve.

Question 48

Solve.

Question 49

Solve.

Question 50

Solve.

Question 51

Solve.
Photography reprints cost $0.52 each at a local photo shop. Through the mail, they cost $0.44 each plus $1.20 postage and handling. How many reprints must a customer purchase to make it less expensive to use mail
Order?

A){n|n > 15 reprints}
B){n|n > 16 reprints}
C){n|n > 18 reprints}
D){n|n > 19 reprints}

Question 52

Solve.

Question 53

Solve.
The equation y = 0.002x - 0.30 can be used to determine the profit y, in dollars, of producing x items. How many items x must be produced so the profit will be at least $3075?

Question 54

Solve.
Company A rents copiers for a monthly charge of $120 plus 8 cents per copy. Company B rents copiers for a monthly charge of $240 plus 4 cents per copy. What is the number of copies above which Company A's charges
Are the higher of the two?

A)3100 copies
B)1500 copies
C)6000 copies
D)3000 copies

Question 55

Solve.

Question 56

Solve.

Question 57

Solve.

Question 58

Solve.

Question 59

Solve.
Jon has 1101 points in his math class. He must have 84% of the 1500 points possible by the end of the term to receive credit for the class. What is the minimum number of additional points he must earn by the end of the
Term to receive credit for the class?

A)159 points
B)1260 points
C)925 points
D)399 points

Question 60

Solve.

Question 61

Graph and write interval notation.

Question 62

Graph and write interval notation.

Question 63

Solve.

Question 64

Solve.
-8 < x + 4 < 6

A)(-4, 10)
B)(-10, 4)
C)(-12, 10)
D)(-12, 2)

Question 65

Graph and write interval notation.

Question 66

Graph and write interval notation.

Question 67

Graph and write interval notation.

Question 68

Graph and write interval notation.

Question 69

Find the indicated intersection or union.

Question 70

Solve.

Question 71

Find the indicated intersection or union.

Question 72

Find the indicated intersection or union.

Question 73

Graph and write interval notation.

Question 74

Find the indicated intersection or union.

Question 75

Graph and write interval notation.

Question 76

Find the indicated intersection or union.

Question 77

Graph and write interval notation.

Question 78

Find the indicated intersection or union.

Question 79

Find the indicated intersection or union.

Question 80

Solve.