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Pre algebra
Sets
Set definition and set representation
Set definition and set representation
ans:
syntax error
C
DEL
ANS
±
(
)
÷
×
7
8
9
–
4
5
6
+
1
2
3
=
0
.
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evaluate answers
calculator
Question 1:
1 pts
{
1
,
2
,
3
}
=
{
3
,
2
,
1
}
=
{
1
,
2
,
2
,
3
,
3
,
3
}
\{1,2,3\}=\{3,2,1\}=\{1,2,2,3,3,3\}
{
1
,
2
,
3
}
=
{
3
,
2
,
1
}
=
{
1
,
2
,
2
,
3
,
3
,
3
}
Question 2:
1 pts
If
B
=
{
1
,
2
,
3
}
B=\{1,2,3\}
B
=
{
1
,
2
,
3
}
than
1
∈
B
1\in B
1
∈
B
and
2
∉
B
.
2\not \in B.
2
∈
B
.
Question 3:
1 pts
The cardinality of the set
A
=
{
1
,
2
,
3
,
5
,
8
,
9
}
A=\{1,2,3,5,8,9\}
A
=
{
1
,
2
,
3
,
5
,
8
,
9
}
is
2
4
5
6
Question 4:
2 pts
∣
∅
∣
\mid \varnothing \mid
∣
∅
∣
is
0
1
2
Question 5:
2 pts
Set
A
=
{
1
,
2
,
3
,
5
,
8
,
9
}
A=\{1,2,3,5,8,9\}
A
=
{
1
,
2
,
3
,
5
,
8
,
9
}
is equivalent to set
B
=
{
2
,
3
,
8
,
11
,
12
,
13
}
B=\{2,3,8,11,12,13\}
B
=
{
2
,
3
,
8
,
11
,
12
,
13
}
.
Question 6:
2 pts
Sets
A
=
{
2
,
4
,
6
,
8
}
A=\{2,4,6,8\}
A
=
{
2
,
4
,
6
,
8
}
and
B
=
{
1
,
2
,
6
,
8
}
B=\{1,2,6,8\}
B
=
{
1
,
2
,
6
,
8
}
are
equal, but not equivalent
not equal, but equivalent
Question 7:
2 pts
List the elements of the set
D
=
{
x
∈
Z
+
∣
x
<
4
}
.
D=\{x\in\mathbb{Z}^{+}\mid x<4\}.
D
=
{
x
∈
Z
+
∣
x
<
4
}
.
D
=
D=
D
=
Question 8:
3 pts
The cardinality od set
A
=
{
∅
,
{
a
}
,
{
a
,
b
}
}
A=\{\varnothing, \{a\}, \{a,b\}\}
A
=
{
∅
,
{
a
}
,
{
a
,
b
}}
is
3
2
1
0
Question 9:
3 pts
List the elements of the set
A
=
{
n
∈
N
∣
\mbox
n
i
s
p
r
i
m
e
a
n
d
n
≤
10
}
.
A=\{n\in\mathbb{N}\mid \mbox{n is prime and}\ n\leq10\}.
A
=
{
n
∈
N
∣
\mbox
ni
s
p
r
im
e
an
d
n
≤
10
}
.
A
=
{
2
,
3
,
5
,
7
}
A=\{2,3,5,7\}
A
=
{
2
,
3
,
5
,
7
}
A
=
{
0
,
2
,
3
,
5
,
7
}
A=\{0,2,3,5,7\}
A
=
{
0
,
2
,
3
,
5
,
7
}
A
=
{
1
,
3
,
5
,
7
,
9
}
A=\{1,3,5,7,9\}
A
=
{
1
,
3
,
5
,
7
,
9
}
A
=
{
2
,
4
,
6
,
8
,
10
}
A=\{2,4,6,8,10\}
A
=
{
2
,
4
,
6
,
8
,
10
}
Question 10:
3 pts
List the elements of the set
A
=
{
x
∈
Z
∣
∣
x
∣
<
4
}
.
A=\{x\in\mathbb{Z}\mid |x|<4\}.
A
=
{
x
∈
Z
∣
∣
x
∣
<
4
}
.
A
=
{
0
,
1
,
2
,
3
}
A=\{0,1,2,3\}
A
=
{
0
,
1
,
2
,
3
}
A
=
{
0
,
1
,
2
,
3
,
4
}
A=\{0,1,2,3,4\}
A
=
{
0
,
1
,
2
,
3
,
4
}
A
=
{
−
4
,
−
3
,
−
2
,
−
1
,
0
,
1
,
2
,
3
,
4
}
A=\{-4,-3,-2,-1,0,1,2,3,4\}
A
=
{
−
4
,
−
3
,
−
2
,
−
1
,
0
,
1
,
2
,
3
,
4
}
A
=
{
−
3
,
−
2
,
−
1
,
0
,
1
,
2
,
3
}
A=\{-3, -2,-1,0, 1,2,3\}
A
=
{
−
3
,
−
2
,
−
1
,
0
,
1
,
2
,
3
}
Question 11:
3 pts
The universal set is
U
=
{
5
,
6
,
7
,
8
,
9
,
10
,
11
,
12
}
.
U=\{5,6,7,8,9,10,11,12\}.
U
=
{
5
,
6
,
7
,
8
,
9
,
10
,
11
,
12
}
.
List the elements of the set
B
=
{
x
∣
x
\mbox
i
s
a
f
a
c
t
o
r
o
f
60
}
.
B=\{x\mid x \mbox{ is a factor of}\ 60\}.
B
=
{
x
∣
x
\mbox
i
s
a
f
a
c
t
oro
f
60
}
.
B
=
{
5
,
6
,
8
,
10
,
12
}
B=\{5,6,8,10,12\}
B
=
{
5
,
6
,
8
,
10
,
12
}
B
=
{
5
,
6
,
10
,
12
}
B=\{5,6,10,12\}
B
=
{
5
,
6
,
10
,
12
}
B
=
{
6
,
8
,
10
,
12
}
B=\{6,8,10,12\}
B
=
{
6
,
8
,
10
,
12
}
B
=
{
5
,
7
,
8
,
9
,
11
}
B=\{5,7,8,9,11\}
B
=
{
5
,
7
,
8
,
9
,
11
}
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Pre-algebra
Polynomials
Linear equations
Quadratic equations
Radicals
Exponents and Logarithms
Trigonometry
Algebra 2
Geometry
Solid Figures
Sets
Set definition and set representation
Operations with sets
Venn diagrams
Whole numbers
The number line
Operations with whole numbers
Divisibility rules
Prime and composite numbers
Greatest common divisor (GCD)
Least common multiple (LCM)
Factorial notation
Decimal numbers
Number line
Adding and subtracting
Multiplying and dividing
Decimal approximations
Converting decimals to fractions
Fractions
Graphical representation
Fractions on the number line
Simplification
Adding & Subtracting
Multiplying & Dividing
Converting to decimals
Absolute values
Compute absolute values
Intervals on number line
Absolute value equations
Graphing functions
Percents, Ratos, Proportions
Ratios and rates
Percent, fraction, decimal conversions
Percent problems
More Word Problems Involving Percents
Write proportions
Use proportions to solve for an unknown quantity
