HunterCoco HunterCoco

27-01-2015
Mathematics

Answered

How many times smaller is 3 × 10^-8 than 6 × 10^-3?

A.20,000,000

B.2,000,000

C.200,000

D.20,000

Answer :

27-01-2015

[tex]\frac{6 \times 10^{-3}}{3 \times 10^{-8}}=\frac{6}{3} \times \frac{10^{-3}}{10^{-8}}=2 \times 10^{-3-(-8)}=2 \times 10^{-3+8}=2 \times 10^5= \\ \\ =2 00 ,000[/tex]

The answer is C.

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