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.
\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.\r
\n" ); document.write( "\n" ); document.write( "I got this question wrong I was told it was to the the 5th power. Is this right?\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 minustes.
\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( "answer-120/120=6
\n" ); document.write( " 6x2=18
\n" ); document.write( "part b. After how many minutes will there be 256 cells in sample?
\n" ); document.write( "answer- 256/2=7128
\n" ); document.write( "128x20=2560\r
\n" ); document.write( "\n" ); 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
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Algebra.Com's Answer #47691 by stanbon(75887)\"\" \"About 
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
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\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.
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.\r
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