Question

Express in scientific notation. Choose the answer with the proper number of significant figures.

9.10^9
4.5 x 10

Answer 1

The scientific notation for the value
`(9 * 10^9)/(4.5 * 10^1)` is 2
`*` 10 ^8 .

Step-by-step explanation:

• Scientific notation is a method for communicating numbers that are too enormous or too little to even think about being easily written in a decimal structure.

• To compose a number in scientific notation:

• Put the decimal after the main digit and drop the zeroes.

• Now calculating the values in scientific notation using the following formula,

a ^x / a^ y = a ^(x − y )

= 9 × 10 ^9 / 4.5 × 10 ^1

= 9 / 4.5 × 10 ^(9 − 1)

= 2
`*` 10 ^8

The scientific notation for the value
`(9 * 10^9)/(4.5 * 10^1)` is 2
`*` 10 ^8 .