document.write( "Question 521866: given log base 16 of u = 3.7\r
\n" ); document.write( "\n" ); document.write( "log base 4 of u^100\r
\n" ); document.write( "\n" ); document.write( "how do i go about solving this?
\n" ); document.write( "

Algebra.Com's Answer #348141 by lwsshak3(11628)\"\" \"About 
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( "
\n" );