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what does the @ sign mean in algebra

Mathematics
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does not have meaning that I am aware of. Did you see it in a SAT question?
no my algebra teacher put it on a worksheet
post the question, but you might want to ask you teacher. Maybe it is a typo and they meant the number 2

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Other answers:

a@b =2a/b and a#b- 2a^2 +3b-5 find the value of 3@(2#4)
what is a# b - did you mean to write a#b = -2a^2+3b-5
yes sorry
well a is your 3 and b is your 2#3 they are using it as a place holder (for a lack of a better word) this means a=3
ok Let me work this out for you. In SAT they sometimes use a heart or some type of symbol - means nothing just defines things
ok i get that i just didnt know what to do with the @ sign
thanks for your help
ok here it goes a#b=\[-2a^2+3b-5\] 2#4 means a is 2 and b is 4 so sub 2#4=\[-2(2)^2+3(4)-5\]=-1
that makes sense
a@b = (2a)/b 3@(2#4)=3@-1 so a is 3 and (2#4) is -1 3@-1=(2*3)/-1=-6
have fun, you will see these on SAT's
ok ill try to :)

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