Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar. What is the value of the digit 4 in this number? Write your answer in number form. 283,234,853,023

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Ответ:

fansofboys

15.01.2022

Mathematics

Option D.

Step-by-step explanation:

Density of Hydrogen = $9\times 10^{-5}$

Density of Helium = $2\times 10^{-4}$

Now ratio of the densities = $\frac{\text{Density of Helium}}{\text{Density of Hydrogen}}$

= $\frac{2\times 10^{-4}}{9\times 10^{-5}}$

= 0.22× $10^{5-4}$

= 2.2

Density of Helium = 2× Density of Hydrogen

Therefore, density of Helium is approximately 2 times the density of Hydrogen.

Option D is the answer.

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