anonymous
  • anonymous
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Mathematics
  • Stacey Warren - Expert brainly.com
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schrodinger
  • schrodinger
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anonymous
  • anonymous
Question: The circumference of the Earth is approximately 131,000,000 ft. a. Write this number in scientific notation and tell how you knew whether to use a positive or a negative exponent. b. The circumference of Mars is 7.00 x 107. Which planet is larger, and by how many feet? Write the answer in both standard and scientific notation.
zpupster
  • zpupster
131,000,000. move the decimal place so that there is one digit term in front in your case count how may places you have moved it--8 places 1.31 x 10^8 you should be able to figure out the rest of the questions now.
anonymous
  • anonymous
@zpupster how do you know whether or not to use a negative on the exponent?

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anonymous
  • anonymous
@zpupster @Hero @blendyblur @west_coast
anonymous
  • anonymous
Never mind, but what is B?
zpupster
  • zpupster
sorry i had signed off. negative would be .01----- 1.0 x 10^-2 b just move the decimal places over 7 places, write it out and compare with earth circum.

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