Answer
$1,000,000,000 = 1\times 10^9$
Work Step by Step
$ 1,000,000,000$
Step 1: Move the decimal point until the number is between 1 and 10.
Step 2: The decimal point is moved 9 places and the original number is 10 or greater, so the count is positive 9.
Step 3: The scientific notation is: $1,000,000,000 = 1\times 10^9$