If 102y - 25- then -10-y equals -1-51-501-6251-5

The correct option is D 1/5 10^2y = 25 = 5^2 ⇒ (10^y)^2=(5)^2⇒ 10^y=5 Now 10^ y=1/10^y=1/5 ...

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Laws of Exponents for Real Numbers

If 102y = 25,...

Question

If $10^{2 y} = 25, t h e n 10^{- y}$ equals

$- \frac{1}{5}$

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$\frac{1}{50}$

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$\frac{1}{625}$

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$\frac{1}{5}$

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Solution

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Similar questions

If 10^2y=25 then 10^-yequals?

- \frac{1}{5}

\frac{1}{50}

\frac{1}{625}

\frac{1}{5}

^{2 y}

^{- y}

3 x - \frac{y + 7}{11} + 2 = 10 2 y + \frac{x + 11}{7} = 10

Solve the following systems of equations:

$3 x - \frac{y + 7}{11} + 2 = 10$

$2 y + \frac{x + 11}{7} = 10$

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