Question

What expressions are equivalent to 10^-5x10^2

Answer 1

Answer= D and E

Explanation:

(for two powers multiplied together we add them)

`10^(-5)`×
`10^(2)`

=
`10^(-5+2)`

=
`10^(-3)`

this is the same as:

=
`(1)/(10^(3) ) =(1)/(1000)` (as
`x^(-y)` is the same as
`(1)/(x^(y) )`)

or

`((1)/(10))^(3)` (as this is the same as
`(1)/(10)`×
`(1)/(10)`×
`(1)/(10)` which is equal to
`(1)/(1000)` the answer for the question)