Question

WILL MARK BRANLIESTIn a multiplication problem, if the first factor has 5 digits after the decimal and the second factor has 4 digits after the decimal, then the product will have _____ digits after the decimal.
1
4
5
9

Answer 1

You can just pick any 5 digit decimal and multiply it with any 4 digit decimal to check.

You will see that it has 9 digits after the decimal.

Answer 2

The product of a 5 decimal-digit number by a 4-decimal digit number will have 8 digits after the decimal. For example:
0.12345 × 0.1234 = 0.01523373 ←8 digits
However, we are multiplying with a whole number and a decimal, we will get 9 digits. Therefore, the answer to your query is 9. Hope this helps and have a great day!