Question

write in standard form : 0.0000042​

Answer 1

$0.0000042=4.2\times 10^{-6}$

Standard form:

When we express a number as a product of a number between 1.0 and 10.0, and power of 10, that form is called a Standard form.

For example, $200=2\times 10^{2}$

Step-by-step explanation:

Here, 0.0000042

= $\dfrac{42}{10000000}$

= $\dfrac{42}{10^{7}}$

= $\dfrac{42}{10}\times\dfrac{1}{10^{6}}$

• since $10^{7}=10^{6}\times 10$

= $4.2\times 10^{-6}$

#SPJ3