document.write( "Question 416407: Could you please help me make sure I am doing this correctly?
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document.write( "In 1995, the life expectancy of males in a certain country was 69.1 years. In 1999, it was 72.9 years. Let E represent the life expectancy in year t and let t represent the number of years since 1995.
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document.write( "E(t)=___t + ___
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document.write( "round to the nearest tenth
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document.write( "Use the function to predict the life expectancy of males in 2005.
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document.write( "E(10)= ___
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document.write( "round to the nearest tenth.
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document.write( "I think I am getting close, but want to be certain. Thanks!! \n" );
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Algebra.Com's Answer #291730 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "Could you please help me make sure I am doing this correctly? \n" ); document.write( "In 1995, the life expectancy of males in a certain country was 69.1 years. In 1999, it was 72.9 years. \n" ); document.write( "Let E represent the life expectancy in year t and let t represent the number of years since 1995. \n" ); document.write( "--- \n" ); document.write( "Points: (0,69.1)(4,72.9) \n" ); document.write( "slope = (72.9-69.1)/4 = 3.8/4 = 19/20\r \n" ); document.write( "\n" ); document.write( "E(t)= (19/20)t + 69.1 \n" ); document.write( "======= \n" ); document.write( "round to the nearest tenth \n" ); document.write( "Use the function to predict the life expectancy of males in 2005. \n" ); document.write( "E(10)= (19/20)10+69.1 \n" ); document.write( "= 19/2 + 69.1 = 78.6 \n" ); document.write( "------------------------- \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( " |