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(8.08×10^-10)÷(4.0×10^-3) in scientific notation?

(8.08×10^-10)÷(4.0×10^-3) in scientific notation?-example-1

1 Answer

4 votes

Answer:


\large\boxed{2.02*10^(-7)}

Explanation:

The scientific notation:


a\cdot10^k\\\\1\leq a<10,\ k\in\mathbb{Z}

We have:


(8.08*10^(-10))/(4.0*10^(-3))\\\\=(8.08*10^(-10))/(4.0*10^(-3))\\\\=(8.08)/(4)*(10^(-10))/(10^(-3))\qquad\text{use}\ (a^n)/(a^m)=a^(n-m)\\\\=2.02*10^(-10-(-3))\\\\=2.02*10^(-7)

User Jleture
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