In a department store, a $40 dress is marked, “Save 25%.” What is the sale price of the dress?
1 answer:
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Answer:
The answer is "Choice D"
Step-by-step explanation:
Determining the information:
For " " and "
",
relates to
when
and
has the same cardinality. therefore, R does not have reflective:
For every "", "
" So, X not proper subset of
. So, R does not havereflexive.
R does not have symmetry:
For every "" ,then, "
" is not true because
not relate to
. So, R is not symmetric.
R does not have antisymmetric:
When relates to
and
is relate to
, then "
" and "
"
Therefore, R is anti-symmetric.