Question

Help guys please ....

Answer 1

Answer:

0.000008 m

Step-by-step explanation:

The diameter of a red blood cell is $8\times 10^{-6}\ m$. We need to write the value in the standard notation.

$10^{-6}$ means there are 5 zeros before 8. It can be written as :

$8\times 10^{-6}=\dfrac{8}{10^6}\ (\because x^{-a}=\dfrac{1}{x^a})\\\\=\dfrac{8}{1000000}\\\\=0.000008$

So, the standard notation is 0.000008 m. Hence, the correct option is (d).