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Math 2130 > Exam 1 > Flashcards

Exam 1 Flashcards

1
Q

Positive Numbers only

1,2,3…

A

Natural Numbers

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2
Q

Zero and Positive Numbers

A

Whole Numbers

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3
Q

Negative numbers, Zero, and Whole Numbers

A

Integers

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4
Q

Negative Numbers, Zero, Positive Numbers, Fractions and Decimals with pattern

A

Rational

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5
Q

Decimal that goes on and on without pattern

A

Irrational

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6
Q

Every Number

A

Real

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7
Q

Property where parenthesis are grouped in different places.

A+B) + C = A + (B+C

A

Associative Property

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8
Q

Property where the number on the outside gets multiplied by everything on the inside.

A

Distributive

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9
Q

Property where anything plus itself is reversible.

A + B = B + A

A

Commutative

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10
Q

Property where you add zero so it can stay itself.

A

Identity Addition

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11
Q

Property where you multiply anything by one to stay itself.

A

Identity Multiplication

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12
Q

Property where anything multiplied by zero equals zero.

A

Zero Property

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13
Q

Property where any number plus it’s opposite equals zero

A

Additive Inverse

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14
Q

Property where anything multiplied by its opposite equals 1

A

Multiplicative Inverse

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15
Q

How can sets be defined?

A

With a…

Verbal Description
Listing
Set Builder

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16
Q

When a set is either empty or it can have all of its elements listed

A

Finite

17
Q

When a set goes on and on without an end

A

Infinite

18
Q

When two sets have nothing in common

A

Disjoint

19
Q

When you put two set together

AUB

A

Union

20
Q

What do two sets have in common

A

Intersection

21
Q

Anything that a set is not

A

Complement

22
Q

What is in A but is not in B

A

Difference of a set

23
Q

When you multiply sets

A

Cartesian

24
Q

3 + 2 = 2 + 3

A

Commutative

25
Q

3+0=3

A

Identity Addition

26
Q

4(56)= (45)6

A

Associative

27
Q

4*1=4

A

Identity Multiplication

28
Q

3 + (-3) = 0

A

Inverse Additive

29
Q

4*0=0

A

Zero

30
Q

3 * (1/3) = 1

A

Inverse Multiplicative

Math 2130 (1 decks)

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