The diameter of a red blood cell is about 0.000,007 m. In scientific notation this is:

  1. 7 10^-6 m
  2. 0.7 10^-5 m
  3. 7 10^-5 m
  4. 7 10^6 m
Answer

A) 7 10^-6 m

Move the decimal point 6 places right to reach 7, so the power is -6. SLO M-09-A-05 · Understanding

Mathematics MCQ · More Real Numbers MCQs · Practise