Final answer:
The situation that can be represented using the division of sign numbers is finding the average speed of a moving car by dividing the distance traveled by the time taken.
Step-by-step explanation:
The situation that can be represented using the division of sign numbers is Finding the speed of a moving car. When you divide the total distance traveled by the time of the trip, you are calculating the average speed. For example, if a car trips odometer shows that 150 miles were covered in 3 hours, the calculation for average speed would be 150 miles ÷ 3 hours = 50 miles per hour. This division reflects the formula Speed = Distance ÷ Time, which is an example of division of sign numbers.
Sharing a pizza with friends involves division but not necessarily of signed numbers. Measuring the length of a table and calculating the area of a square are both more related to multiplication or direct measurement, not division.
It is important to note that the rules for multiplication and division of sign numbers dictate that the resulting sign is positive when dividing two numbers with the same sign and negative when the numbers have opposite signs.