Final answer:
To simplify √64, the square root of 64 is equal to √(16 * 4), which simplifies to 4 * 2 = 8.
Step-by-step explanation:
To simplify √64, we need to find the square root of 64, which gives us the value that, when multiplied by itself, equals 64. The correct answer is C. √16.4. This is because 16 multiplied by itself is equal to 64. Therefore, √64 is equal to √(16 * 4), which simplifies to √(16) * √(4) = 4 * 2 = 8.
Learn more about Simplifying square roots