MathDB
Algebraic Equation

Source:

March 3, 2010
logarithms

Problem Statement

The set of x x-values satisfying the equation x^{\log_{10} x} \equal{} \frac{x^3}{100} consists of: <spanclass=latexbold>(A)</span> 110<spanclass=latexbold>(B)</span> 10, only<spanclass=latexbold>(C)</span> 100, only<spanclass=latexbold>(D)</span> 10 or 100, only<spanclass=latexbold>(E)</span> more than two real numbers. <span class='latex-bold'>(A)</span>\ \frac{1}{10} \qquad <span class='latex-bold'>(B)</span>\ \text{10, only} \qquad <span class='latex-bold'>(C)</span>\ \text{100, only} \qquad <span class='latex-bold'>(D)</span>\ \text{10 or 100, only} \qquad <span class='latex-bold'>(E)</span>\ \text{more than two real numbers.}