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isaphttp://webisa.webdatacommons.org/prov/
isahttp://webisa.webdatacommons.org/
n4gmatclub.
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provhttp://www.w3.org/ns/prov#
xsdhhttp://www.w3.org/2001/XMLSchema#
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isa:329098817
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prov:Entity
prov:value
Sufficient.Answer: D.I used x= +6 and -6 ..Which is true in both the cases..it shud be E..Stem says that x is a positive number, thus x cannot be -6.Hope it is clear. _________________
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n4:com
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isa:329098817