document.write( "Question 1058052: Radioactive Decay. A radioactive isotope, selenium (75Se), used in the creation of medical images of the pancreas, has a half-life of 119.77 days. If 250 milligrams are given to a patient, how many milligrams, A, are left after 34 days? \n" ); document.write( "
Algebra.Com's Answer #673101 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! A radioactive isotope, selenium (75Se), used in the creation of medical images of the pancreas, has a half-life of 119.77 days. \n" ); document.write( " If 250 milligrams are given to a patient, how many milligrams, A, are left after 34 days? \n" ); document.write( ": \n" ); document.write( "Use the radioactive decay formula; A = Ao*2(-t/h), where: \n" ); document.write( "A = Amt remaining after t time \n" ); document.write( "Ao = Initial amt (250 ml) \n" ); document.write( "t = time of decay (34 days) \n" ); document.write( "h = half-life of substance (119.77 days) \n" ); document.write( ": \n" ); document.write( "A = 250*2^(-34/119.77) \n" ); document.write( "Using a calc \n" ); document.write( "A = 250 * .82138 \n" ); document.write( "A = 205.345 ml after 34 days \n" ); document.write( " |