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Mathematics 8 Online
OpenStudy (anonymous):

What is the value of the expression 7–3? A. –21 B.-1/343 Negative Exponents C. 1/343 Negative Exponents D. 343

pooja195 (pooja195):

i assume you are saying 7^-3 all you do is make it into a fraction -7 x -7 x -7 /1 now move everything down so its positive 1/7 x 7 x 7 whats 7 x 7 x 7 = ?

OpenStudy (anonymous):

343

pooja195 (pooja195):

good so you get 1/343 :)

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