MathDB
Logarithmic Equation

Source:

February 11, 2009
logarithms

Problem Statement

If \log x\minus{}5 \log 3\equal{}\minus{}2, then x x equals: <spanclass=latexbold>(A)</span> 1.25<spanclass=latexbold>(B)</span> 0.81<spanclass=latexbold>(C)</span> 2.43<spanclass=latexbold>(D)</span> 0.8<spanclass=latexbold>(E)</span> either 0.8 or 1.25 <span class='latex-bold'>(A)</span>\ 1.25 \qquad <span class='latex-bold'>(B)</span>\ 0.81 \qquad <span class='latex-bold'>(C)</span>\ 2.43 \qquad <span class='latex-bold'>(D)</span>\ 0.8 \qquad <span class='latex-bold'>(E)</span>\ \text{either 0.8 or 1.25}