Respuesta :

5.42 x 10^8 because the first number can’t be over 10

Answer:

5.42436246 x 10^8

Step-by-step explanation:

- There should only be 1 whole number. => 5

- Other numbers should after the decimal point => .42436246

- Multiply with 10^?

? represents the number of digits is the decimal point moved from the original number. => 8

So, the answer is 5.42436342 x 10^8