Answer:
7.3 x 10⁸
Step-by-step explanation:
To write 730,000,000 in scientific notation, we will write a number between 1 and 10 and then multiply it by a power of 10. In this case, the number is 7.3, so
730,000,000 = 7.3 x 10⁸
Because we need to move the decimal point of 7.3 eight places to the right to get the given number.
Therefore, the answer is:
7.3 x 10⁸