AnswersMath Models AUnderstanding Probability

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The diagram shows the universal set U = {parallelograms}.Set A represents parallelograms with four congruent sides, while B represents parallelograms with four congruent angles.

Question illustration
A
6
B
8
C
18
D
26
2
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The universal set is the set of rational numbers. S is the set of integers.Which represents Sc?

A
{x|x is a real number}
B
{x|x is a rational number}
C
{x|x is a rational positive number}
D
{x|x is a rational non-integer}
3

Carrie is finding the set of even numbers within the set of prime numbers.Of the sets described, which is the universal set?

A
all real numbers
B
all integers
C
prime numbers
D
even numbers
4

Which statements are true about x? Select three options.

A
x ∈ B ⋃ C
B
x ∈ B ∩ C
C
x ∈ A ⋃ C
D
x ∈ A ∩ C
E
x ∈ A
5

If the set U = {all positive integers} and set A = {x|x ∈ U and x is an odd positive integer}, which describes the complement of set A, Ac?

A
Ac = {x|x ∈ U and is a negative integer}
B
Ac = {x|x ∈ U and is zero}
C
Ac = {x|x ∈ U and is not an integer}
D
Ac = {x|x ∈ U and is an even positive integer}
6

2 circles labeled Set A and Set B overlap. Set A contains 1, set B contains 3, and the overlap of the 2 circles contains 2. The number 4 is outside of the circles.

Question illustration
A
II
B
I and III
C
I, II, and III
D
I, II, III, and IV
7

2 circles labeled Set A and Set B overlap. Set A contains 1, set B contains 3, and the overlap of the 2 circles contains 2. The number 4 is outside of the circles.

Question illustration
A
II
B
I and III
C
I, II, and III
D
I, II, III, and IV
8

Consider the following sets.U = {all real number points on a number line}A = {solutions to the inequality 3x + 4 ≥ 13}B = {solutions to the inequality x + 3 ≤ 4}For which values of x is A ⋃ B = Ø?

Question illustration
A
2 < x < 3
B
2 ≤ x ≤ 3
C
x ≤ 2 and x ≥ 3
D
x 3
9

The Venn diagram shows three types of numbers: odd (O), even (E), and prime (P).

Question illustration
A
O ⋃ P
B
E ∩ P
C
O ⋃ E
D
E ∩ O
10

Consider the following sets.U = {ordered pairs on a coordinate plane}A = {ordered pair solutions to y = x}B = {ordered pair solutions to y = 2x}Which ordered pair satisfies A ∩ B?

A
(0, 0)
B
(1, 1)
C
(1, 2)
D
(2, 1)

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