document.write( "Question 424831: In 1991, the life expectancy of males in a certain country was 66.1 years. In 1998, it was 68.5 years. Let E represent the life expectancy in year t and let t represent the number of years since 1991. the linear functin E (t) that fits the dat is:
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document.write( "E (t) = __t +___.
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document.write( "(round to the nearest tenth)\r
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document.write( "Use the function to predict the life expectanc of males in 2008.
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document.write( "E (17) = ____
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document.write( "(round to the nearest tenth) \n" );
document.write( "
Algebra.Com's Answer #296038 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! In 1991, the life expectancy of males in a certain country was 66.1 years. In 1998, it was 68.5 years. Let E represent the life expectancy in year t and let t represent the number of years since 1991. \n" ); document.write( "--- \n" ); document.write( "2 points: (0,66.1), (7,68.5) \n" ); document.write( "--- \n" ); document.write( "slope = (68.5-66.1)/7 = 12/35 \n" ); document.write( "int: 66.1 \n" ); document.write( "------------------------------------ \n" ); document.write( "the linear function E (t) that fits the date is: \n" ); document.write( "E (t) = (12/35)t +66.1 \n" ); document.write( "(round to the nearest tenth) \n" ); document.write( "---------------------------------------------- \n" ); document.write( "Use the function to predict the life expectanc of males in 2008. \n" ); document.write( "E (17) = (12/35)17+66.1 = 71.93 \n" ); document.write( "(round to the nearest tenth) \n" ); document.write( "=================================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "======= \n" ); document.write( " \n" ); document.write( " |