Question

Answer this question and show me how to check it

Answer 1

Given:

$\text{length =}8\times10^4\text{ m}$$t\text{hickness}=5\times10^{-6}m$

To find the standard form of length, multiply and divide the length by 10, we get

$\text{length =}8\times10^4\text{ }\times\frac{10}{10}$

$\text{length =}\frac{8}{10}\times10^4\text{ }\times10$$\text{Use }\frac{8}{10}=0.8\text{ and }10^4\times10=10^{4+1}=10^5.$

$\text{length =}0.8\times10^5m$

To find the standard form of thickness, multiply and divide the thickness by 10, we get

$t\text{hickness}=5\times10^{-6}\times\frac{10}{10}$

$t\text{hickness}=\frac{5}{10}\times10^{-6}\times10$$\text{Use }\frac{5}{10}=0.5\text{ and }10^{-6}\times10=10^{-6+1}=10^{-5}.$

$t\text{hickness}=0.5\times10^{-5}m$

Hence the standard form of length and thickness is

$\text{length =}0.8\times10^5m$

$t\text{hickness}=0.5\times10^{-5}m$