Question

Which of the following expressions is not equal to 0.00055? 55 • 10-5 5.5 • 10-4 5.5 • 104 0.55 • 10-3

Answer 1

(C)

Explanation:

The given expression is :

`0.00055`

which on simplifying, we get

`(55)/(100000)=55{*}10^(-5)`

The given expression can be easily rewritten as:

`5.5{*}10^(-4)` and
`0.55{*}10^(-3)`

but
`5.5{*}10^(4)=55000{\\eq}0.00055`

Thus, Option (C) is the expression which is not equal to the given expression.