To determine the sign of the quotient for the problem \(-1 \frac{3}{4} \div \frac{2}{5}\), we first need to identify the signs of the dividend and divisor:
- The dividend is \(-1 \frac{3}{4}\), which is negative.
- The divisor is \(\frac{2}{5}\), which is positive.
When dividing a negative number by a positive number, the result will always be negative. Therefore, regardless of the size of the numbers, since we have a negative dividend and a positive divisor, the quotient will be negative.
Thus, the correct response is: Negative - If the dividend is negative, the quotient is negative.