Question

Express 0.0057 in scientific notation

Answer 1

`5.7 * {10}^( - 3)`

Explanation:

0.0057

first number

5

then the rest

7

equal

5.7

There's three zeros behind the number 5 which mean it will be -3

`* {10}^( - 3)`

final answer

`5.7 * {10}^( - 3)`

another example and it will be clear

0.0000403

first number

4

then the rest

03

equal

4.03

There's five zeros behind the number 4 which mean it will be -5

`* {10}^( - 5)`

final answer

`4.03 * {10}^( - 5)`