document.write( "Question 831700: The life expectancy of a woman is given by the model L(t)= √0.3t^3-5.5t^2 +70t+6000 where L is average life expectancy of a woman and t is the number of years after 1990. Find the average life expectancy of a woman in the year 2015. Round your answer correct to two decimal places if needed.
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document.write( "Please help.\r
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document.write( "FYI: all the numbers from 0.3t are under a radical. Thanks \n" );
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Algebra.Com's Answer #501594 by edjones(8007)![]() ![]() You can put this solution on YOUR website! L(25)=sqrt(.3*25^3-5.5*25^2+70*25+6000) \n" ); document.write( "=sqrt(.3*15625-5.5*625+1750+6000) \n" ); document.write( "=sqrt(4687.5-3437.5+7750) \n" ); document.write( "=sqrt(9000) \n" ); document.write( "=94.87 \n" ); document.write( ". \n" ); document.write( "Ed \n" ); document.write( " |