Write 640,000,000 in scientific notation.

  1. 6.4 10^7
  2. 6.4 10^-8
  3. 6.4 10^9
  4. 6.4 10^8
Answer

D) 6.4 10^8

Move the decimal point so that one non-zero digit is before it: 640,000,000 = 6.4 10^8 (left by 8 places). SLO M-09-A-05 · Understanding

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