Final answer:
The first digit of the quotient 5.64 divided by 15 is 0.
Step-by-step explanation:
When dividing 5.64 by 15, we can use long division to find the quotient.
- First, we divide the 5 (the first digit of 5.64) by 15. Since 5 is less than 15, the first digit of the quotient is 0.
- Then, we bring down the next digit, 6, and divide it by 15. The quotient is 0 again.
- Finally, we bring down the last digit, 4, and divide it by 15. The quotient is 0 once more.
Therefore, the first digit of the quotient 5.64 divided by 15 is 0.