What is the value of the rational expression the fraction with numerator 2 x plus 1 and denominator x squared when x is equal to 5 ?

Substitute x = 5 into (2x + 1)/x²: the numerator is 2(5) + 1 = 11, and the denominator is 5² = 25. The value is 11/25, which is choice B, eleven twenty-fifths.

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