Which expression is equivalent to 5y^-3?

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Which expression is equivalent to 5y^-3?A. 1/125y^3
B. 1/5y^3
C. 5/y^3
D. 125/y^3





Which expression is equivalent to 5y⁻³

A negative power means that that number is in the denominator.

For example, a⁻¹ = 1/a

                      x⁻³ = 1/x³

∴  5y⁻³ = 5/y³

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