document.write( "Question 1210626: Another logarithm question:\r
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document.write( "Calculate log 5601 using table.\r
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document.write( "Not in table.\r
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document.write( "Closest: 5599 = 363 5611 = 364 Difference of .001\r
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document.write( "Difference of 5601 - 5999 = 2\r
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document.write( "Difference of 5611 - 5601 = 10\r
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document.write( "Not sure how to proceed.\r
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Algebra.Com's Answer #854472 by greenestamps(13355) You can put this solution on YOUR website! \n" ); document.write( "The calculations in the response from @jogsarithmetic make no sense. \n" ); document.write( "The answer they come out with is 3.748996, and they show the correct answer (from a calculator) to be 3.748265. The answer they come out with should not be that far from the correct answer. \n" ); document.write( "From a table, find \n" ); document.write( "log(5.60) = 0.748188 \n" ); document.write( "log(5.61) = 0.748963 \n" ); document.write( "(Note that the answer from the other tutor for log(5601) is greater than log(5610), which makes no sense...) \n" ); document.write( "You want to find log(5601) = log(5.601*10^3) = 3+log(5.601) \n" ); document.write( "5.601 is one-tenth of the way from 5.60 to 5.61, so log(5.601) is (very nearly) one-tenth of the way from log(5.60) to log(5.61). \n" ); document.write( "The difference between log(5.60) and log(5.61) is 0.748963-0.748188 = 0.000775 \n" ); document.write( "One-tenth of that difference is 0.0000775. So \n" ); document.write( "log(5.601) = 0.748188+0.0000775 = 0.7482655 \n" ); document.write( "ANSWER: log(5601) = 3.7482655 \n" ); document.write( " \n" ); document.write( " |