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Pre algebra
Sets
Set deffinition and set representation
Set deffinition and set representation
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Question 1:
1 pts
$\{1,2,3\}=\{3,2,1\}=\{1,2,2,3,3,3\}$
Question 2:
1 pts
If $B=\{1,2,3\}$ than $1\in B$ and $2\not \in B.$
Question 3:
1 pts
The cardinality of the set $A=\{1,2,3,5,8,9\}$ is
2
4
5
6
Question 4:
2 pts
$\mid \varnothing \mid$ is
0
1
2
Question 5:
2 pts
Set $A=\{1,2,3,5,8,9\}$ is equivalent to set $B=\{2,3,8,11,12,13\}$.
Question 6:
2 pts
Sets $A=\{2,4,6,8\}$ and $B=\{1,2,6,8\}$ are
equal, but not equivalent
not equal, but equivalent
Question 7:
2 pts
List the elements of the set $D=\{x\in\mathbb{Z}^{+}\mid x<4\}.$
$D=$
$\{1,2,3\}$
$\{2,3,4\}$
$\{0,1,2,3,4\}$
Question 8:
3 pts
The cardinality od set $A=\{\varnothing, \{a\}, \{a,b\}\}$ is
3
2
1
0
Question 9:
3 pts
List the elements of the set $A=\{n\in\mathbb{N}\mid \mbox{n is prime and}\ n\leq10\}.$
$A=\{2,3,5,7\}$
$A=\{0,2,3,5,7\}$
$A=\{1,3,5,7,9\}$
$A=\{2,4,6,8,10\}$
Question 10:
3 pts
List the elements of the set $A=\{x\in\mathbb{Z}\mid |x|<4\}.$
$A=\{0,1,2,3\}$
$A=\{0,1,2,3,4\}$
$A=\{-4,-3,-2,-1,0,1,2,3,4\}$
$A=\{-3, -2,-1,0, 1,2,3\}$
Question 11:
3 pts
The universal set is $U=\{5,6,7,8,9,10,11,12\}.$ List the elements of the set $B=\{x\mid x \mbox{ is a factor of}\ 60\}.$
$B=\{5,6,8,10,12\}$
$B=\{5,6,10,12\}$
$B=\{6,8,10,12\}$
$B=\{5,7,8,9,11\}$
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Pre-algebra
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