Question

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Answer 1

$\frac{1}{x - 10} : \frac{9x}{x^{2} - 9x - 10} = \frac{x^{2} - 9x - 10}{9x(x - 10)} = \frac{(x + 1)(x - 10)}{9x(x - 10)} = \frac{x + 1}{9x}$

$Answer.C.) \frac{x + 1}{9x}$

$\textbf{Spymore}$​​