Answer:
110011
Step-by-step explanation:
This is the binary representation of the answer to the addition of 1100 + 1001, which is 2001. Binary representation uses base 2 counting, so the only possible answers will feature only 0s and 1s since these are the only two digits in this base system. The answer 110011 is achieved by adding the two terms one digit at a time, starting from the right. The first column is 1 + 1 = 10, which is written as "10" in binary, which is equivalent to "2" in our base 10 system. The next column is 0 + 0 = 0; the next column is 1 + 0 = 1. The last column is 1 + 1 = 10, which is written as "10" in binary, which is equivalent to "2" in our base 10 system. The final answer is 110011, or 2001 in base 10.