2021 June(D06) Math Question 58
Exponents, Radicals, & Scientific Notation
- Exponent Expressions
$$ \frac{2^x}{2^y}=2^{x-y}=\frac{7}{14}=\frac{1}{2}=2^{-1} $$ $$\Rightarrow x-y=-1 $$
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