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OpenStudy (anonymous):
A textbook illustrator wants a bacterium 1.2 ,10^-7 cm long to appear 7.2 cm long in her new science test. In the caption she needs to note how many times larger the illustration is than the bacterium. What is the enlargement factor
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sam (.sam.):
Just divide 7.2 by 1.2*10^-7. new size / origional size 7.2 / (1.2 x 10^-7) = 6 x 10^7
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