document.write( "Question 521866: given log base 16 of u = 3.7\r
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document.write( "log base 4 of u^100\r
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document.write( "how do i go about solving this? \n" );
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Algebra.Com's Answer #348141 by lwsshak3(11628) ![]() You can put this solution on YOUR website! given log base 16 of u = 3.7 \n" ); document.write( "log base 4 of u^100 \n" ); document.write( "how do i go about solving this \n" ); document.write( "** \n" ); document.write( "log16(u)=3.7 \n" ); document.write( "u=16^3.7 \n" ); document.write( ".. \n" ); document.write( "log4(u^100)=log4[(16^3.7)^100]=log4[16^3700] \n" ); document.write( "Exponential form: base(4) raised to log of number(x)=number(16^3700) \n" ); document.write( "4^x=16^3700=(4^2)^3700=4^7400 \n" ); document.write( "x=7400 \n" ); document.write( "log4(u^100)=7400 \n" ); document.write( "u^100=4^7400 \n" ); document.write( "take log of both sides \n" ); document.write( "100logu=7400log4 \n" ); document.write( "logu=7400*log4/log100=7400*log4/2=2227.6 \n" ); document.write( "u=10^2227.6 \n" ); document.write( " |