Correct Answer: Option B

Explanation

\(\frac{0.3 \times 10^5}{0.4 \times 10^7} = \frac{3 \times 10^{-1} \times 10^{5}}{4 \times 10^{-1} \times 10^7}\)

\(\frac{3 x 10^4}{4 x 10^4}\)

\(\frac{3}{4}\) x 10^4-6 = 0.75 x 10^-2

= 7.5 x 10^-3

• How can I get better at wave length 😭? Answer this

  3 Answers   ·   Physics   ·   4 days ago
• when is mop up exam starting? Answer this

  1 Answers   ·   2 days ago
• what is the cutt off mark for osun state college of nursing science in Asubiaro osun? Answer this

  1 Answers   ·   Medical Science   ·   1 day ago