HELP PLZ AND FAST!! MEDAL AND FAN
For which operations is the set {0, 1} closed?
Choose all answers that are correct.
A.
multiplication
B.
division
C.
addition
D.
subtraction
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OpenStudy (anonymous):
It is not subtraction.
OpenStudy (anonymous):
It would also be closed under multiplication
OpenStudy (anonymous):
so probably A and C
OpenStudy (anonymous):
ok thx
OpenStudy (anonymous):
can you help out with four more??
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jimthompson5910 (jim_thompson5910):
It is NOT closed under addition because we can take the elements 1 and 1 and combine them to get
1+1 = 2
2 is NOT in the original set. So we can see that the set is NOT closed under addition
OpenStudy (anonymous):
oh ok
OpenStudy (anonymous):
But there is not two 1s in the set so it would seem not to be a valid argument but I could be wrong.
OpenStudy (anonymous):
ok i am so confused
OpenStudy (anonymous):
but i think i agree with bananaroof01
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OpenStudy (anonymous):
but can you help me out with four more??
OpenStudy (anonymous):
ok
OpenStudy (anonymous):
thx
OpenStudy (anonymous):
Which equations show that the set of whole numbers is not closed under subtraction?
Choose all answers that are correct.
A.
1 – (–2) = 3
B.
1 – 2 = –1
C.
2 – 0 = 2
D.
2 – 4 = –2
OpenStudy (anonymous):
ok so do you no how to do any of these qustions if not i can explan
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OpenStudy (anonymous):
i do its just a bit confusing
OpenStudy (anonymous):
OK i will explan mid telling me what grad your in
jimthompson5910 (jim_thompson5910):
@bananaroof01 you can take any two elements of the set that you want. They can be repeated. The only rule is that the numbers picked must come from the set.
OpenStudy (anonymous):
im in 7th
OpenStudy (anonymous):
cool
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OpenStudy (anonymous):
ok a is not going to be it and B and c would be whigt si do you want me to explane why
OpenStudy (anonymous):
yes
OpenStudy (anonymous):
ok so A would not be it becuse it would not make sense
OpenStudy (anonymous):
are you there
OpenStudy (anonymous):
ya
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OpenStudy (anonymous):
ok i just cretted my self it just c it maks the most sense
OpenStudy (anonymous):
do you have to pic to
OpenStudy (anonymous):
ya
OpenStudy (anonymous):
or more
OpenStudy (anonymous):
ok so i pic c and a
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OpenStudy (anonymous):
fan me
OpenStudy (anonymous):
ok done
OpenStudy (anonymous):
did you get it right
OpenStudy (anonymous):
i still got like 3 more
OpenStudy (anonymous):
ok whats the nest one and do you go to k12
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OpenStudy (anonymous):
yep
OpenStudy (anonymous):
me to
OpenStudy (anonymous):
cool
OpenStudy (anonymous):
Which sets of numbers are closed under addition?
Choose all answers that are correct.
A.
{0, 2, 5, 8}
B.
even integers
C.
rational numbers
D.
{0}
OpenStudy (anonymous):
ok so we dont get band open a new post ok
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