document.write( "Question 1076016: The values of y, y0, and t are given. For an equation of the form y=y0e^kt, give the exact value of k in terms of natural logarithms.
\n" ); document.write( "y0=70, t=110, y=35\r
\n" ); document.write( "\n" ); document.write( "k=?
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Algebra.Com's Answer #690719 by MathLover1(20850)\"\" \"About 
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\n" ); document.write( "\"y=y%5B0%5De%5E%28kt%29\" , give the exact value of \"k\" in terms of natural logarithms\r
\n" ); document.write( "\n" ); document.write( "\"y%5B0%5D=70\",
\n" ); document.write( "\"t=110\",
\n" ); document.write( "\"y=35\"
\n" ); document.write( "\"k\"=? \r
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\n" ); document.write( "\n" ); document.write( "\"35=70e%5E%28k%2A110%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"35%2F70=e%5E%28110k%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"1%2F2=e%5E%28110k%29\" .........take natural logarithms\r
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\n" ); document.write( "\n" ); document.write( "\"ln%281%2F2%29=ln%28e%5E%28110k%29%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"ln%281%29-ln%282%29=%28110k%29ln%28e%29\"........since \"ln%28e%29=1\" and \"ln%281%29=0\", we have\r
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\n" ); document.write( "\n" ); document.write( "\"-ln%282%29=110k\"\r
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\n" ); document.write( "\n" ); document.write( "\"k=-ln%282%29%2F110\"\r
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