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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
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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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