how 40.02 ×10^-8 gets converted to 4.002×10^-7 my question is why 40.02 gets changed to 4.002 About the author Alexandra
Answer: [tex] \: since \: \: 40.02 \times 10 ^{ – 8} = \frac{4002}{10000000000} \\ \\ = \frac{4002}{1000} \times \frac{1}{10000000} \\ \\ \: so \: we \: can \: writeit \: = \: 4.002 \times 10 ^{- 7} [/tex] Reply
Answer:
[tex] \: since \: \: 40.02 \times 10 ^{ – 8} = \frac{4002}{10000000000} \\ \\ = \frac{4002}{1000} \times \frac{1}{10000000} \\ \\ \: so \: we \: can \: writeit \: = \: 4.002 \times 10 ^{- 7} [/tex]