Intermediate Algebra‎ > ‎4)Radicals‎ > ‎

5)Mixed Review Sheet

Assignment: Mixed Review Worksheet    (1-23  odd)
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Radical Equations:
\begin{array}{c} 2)\,1 = \sqrt a \\ {\left( 1 \right)^2} = {\left( {\sqrt a } \right)^2}\\ 1 = a \end{array} 


\begin{array}{c} 6)\,{a^{\frac{1}{2}}} = 4\\ \sqrt a  = 4\\ {\left( {\sqrt a } \right)^2} = {4^2}\\ (B)\,\,a = 16 \end{array}




\begin{array}{c} 16)\,\log \left( {5x - 1} \right) = \log (9 - 5x)\\ 5x - 1 = 9 - 5x\\  + 5x =  + 5x\\ 10x - 1 = 9\\  + 1 =  + 1\\ 10x = 10\\ x = \frac{{10}}{{10}} = 1\\ (B)\,\{ 1\}  \end{array}

\begin{array}{l} 18){5^k} = 13\\ \log {5^k} = \log 13\\ k\log 5 = \log 13\\ k = \frac{{\log 13}}{{\log 5}}\\ k = 1.5937\\ (B)\,1.5937 \end{array}

\begin{array}{c} 22)\,{6^n} + 9 = 87\\  - 9 =  - 9\\ {6^n} = 78\\ n\log 6 = \log 78\\ n = \frac{{\log (78)}}{{\log (6)}}\\ (A)\,n = 2.4315 \end{array}





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Mixed Review Worksheet  85k v. 1 Dec 2, 2011, 10:37 AM Taryn Delaney
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