Question

Express 78 billion in scientific notation

Answer 1

`7.8 * 10^(10)` is scientific notation of 78 billion

Explanation:

For scientific notation , follow the following notation:

`a * 10^(b)` -------->(equation 1)

Let,
`a^(') = 78 billion`

`a^(') = 78000000000`

`a^(') = 78000000000.0`

In standard form

`a = 7.8000000000`

or

`a = 7.8`

As decimal point move 10 places from right to left, therefore

b = 10

Put the value of 'a' and 'b' in (equation 1)

`7.8 * 10^(10)` is scientific notation of 78 billion