5s-7/10s-9 Now s-7 = 1/s7 and 1/s-9 = s9 5s-7/10s-9 = 5s9/10s7 Now 5/10 = 1/2 and s9/s7 = s9-7 = s2, so the answer is s2/2

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Philip P. answered • 02/18/15

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5s-7/10s-9

Now s^-7 = 1/s⁷ and 1/s^-9 = s⁹

5s-7/10s-9 = 5s⁹/10s⁷

Now 5/10 = 1/2 and s⁹/s⁷ = s^9-7 = s^2, so the answer is s²/2

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the answer to this is what