anonymous
  • anonymous
How do you write the number 4.2 × 10-1 in standard form? help please 0.0042 0.42 420 4.2
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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texaschic101
  • texaschic101
look at your 4.2....and being that the exponent is -1....we start at the decimal and move to the left 1 space.....making it 0.42
texaschic101
  • texaschic101
also, keep in mind, if it is a negative exponent, then the number will be below 1.
texaschic101
  • texaschic101
understand ? For instance, if it was 4.2 x 10^-2......start at 4.2 and move the decimal 2 spaces to the left...making it .042

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anonymous
  • anonymous
It would be B

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