document.write( "Question 67075: 1. The Queen Mary is a large cruise ship that has 8,123,700 cubic feet of cargo space. Express this number in scientific notation.
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document.write( "answer I have-8.1237x10 to the 7th
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document.write( "to convert this i moved the decimal left or right until it became a number.\r
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document.write( "I got this question wrong I was told it was to the the 5th power. Is this right?\r
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document.write( "2. Georgina is collecting data on the growth of E-coli bacteria. Each E-coli cell reproduces by dividing in half every 20 minustes.
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document.write( "part a. If Georgina starts with 1 e-coli, how many cells will be in the sample after 120 minutes?
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document.write( "answer-120/120=6
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document.write( " 6x2=18
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document.write( "part b. After how many minutes will there be 256 cells in sample?
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document.write( "answer- 256/2=7128
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document.write( "128x20=2560\r
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document.write( "I also got this one wrong. Not sure what I missed. These are word problems from extended responses I have every 5 weeks. These are not from my textbook. If you please help. I can redo and bring up grade. Thank you \n" );
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Algebra.Com's Answer #47691 by stanbon(75887) ![]() You can put this solution on YOUR website! 1. The Queen Mary is a large cruise ship that has 8,123,700 cubic feet of cargo space. Express this number in scientific notation. \n" ); document.write( "answer I have-8.1237x10 to the 7th \n" ); document.write( "to convert this i moved the decimal left or right until it became a number. \n" ); document.write( "I got this question wrong I was told it was to the the 5th power. Is this right? \n" ); document.write( "I believe it should be 8.1237 x 10^6 \n" ); document.write( "The \"6\" will move the decimal 6 to the right and \n" ); document.write( "give you your original number. \n" ); document.write( "-------------------------------\r \n" ); document.write( "\n" ); document.write( "2. Georgina is collecting data on the growth of E-coli bacteria. Each E-coli cell reproduces by dividing in half every 20 minutes. \n" ); document.write( "part a. If Georgina starts with 1 e-coli, how many cells will be in the sample after 120 minutes? \n" ); document.write( "After 20 minutes there will be 2 cells \n" ); document.write( "After 2*20 minutes there will be 4=2^2 \n" ); document.write( "After 3*20 minutes there will be 8=2^3 \n" ); document.write( "120/20=6 \n" ); document.write( "2^6=64 E-coli after 120 minutes \n" ); document.write( "----------------- \n" ); document.write( "part b. After how many minutes will there be 256 cells in sample? \n" ); document.write( "256=2^8 \n" ); document.write( "8*20=160 minutes \n" ); document.write( "After 160 minutes there will be 256 cells of E-coli. \n" ); document.write( "----------------- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |