document.write( "Question 1198954: b) The half-life of a radioactive substance is 300 years. If the initial amount is q milligrams, then the quantity q(t) remaining after t years is given by q(t) = q2^(kt). Find k \n" ); document.write( "
Algebra.Com's Answer #832645 by MathTherapy(10552)\"\" \"About 
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b) The half-life of a radioactive substance is 300 years. If the initial amount is q milligrams, then the quantity q(t) remaining after t years is given by q(t) = q2^(kt). Find k
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document.write( "    \"matrix%281%2C3%2C+1%2F2%2C+%22=%22%2C+2%5E%28300k%29%29\" ----- Substituting \"matrix%281%2C3%2C+1%2F2%2C+for%2C+q%28t%29%2Fq%29\" and 300 for t\r\n" );
document.write( "\"matrix%281%2C3%2C+300k%2C+%22=%22%2C+log+%282%2C+%281%2F2%29%29%29\" ----- Converting to LOGARITHMIC form\r\n" );
document.write( " 300k = - 1 ----- Substituting - 1 for \"log+%282%2C+%281%2F2%29%29\"\r\n" );
document.write( "  \"highlight_green%28matrix%281%2C3%2C+k%2C+%22=%22%2C+highlight%28%28-+1%29%2F300%29%29%29\"
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