Problem: Which one of the following is not equivalent to 0.000000375?0.000000375?0.000000375?
Answer Choices:
A. 3.75×10−73.75 \times 10^{-7}3.75×10−7 B. 334×10−73 \frac{3}{4} \times 10^{-7}343×10−7 C. 375×10−9375 \times 10^{-9}375×10−9 D. 38×10−7\dfrac{3}{8} \times 10^{-7}83×10−7 E. 380,000,000\dfrac{3}{80,000,000}80,000,0003
Solution:
38=.375;∴38⋅10−6=0.000000375.∴\dfrac{3}{8}=.375 ; \quad \therefore \dfrac{3}{8} \cdot 10^{-6}=0.000000375 . \quad \therefore83=.375;∴83⋅10−6=0.000000375.∴ (D) is the correct choice.