Question

How do you simplify `(1.9\times 10^ { 9} ) ( 5\times 10^ { - 4} )`?

Answer 1

`(1.9xx10^9)(5xx10^(-4))=9.5xx10^5`

Explanation:

`(1.9xx10^9)(5xx10^(-4))`

= `(1.9xx5)xx(10^9xx10^(-4))`

= `9.5xx10^(9+(-4))`

= `9.5xx10^5`