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Which of the following better defines a compound machine?

46. Which of the following better defines a compound machine?

1. A machine that is overly complex and inefficient
2. A machine that operates using only one simple machine
3. A machine that operates without the use of any simple machines
4. A machine that combines two or more simple machines to conduct tasks

Answer

The correct answer is: D) A machine that combines two or more simple machines to conduct tasks

Explanation

A compound machine that combines two or more simple machines to conduct tasks, such as pulleys, inclined planes, levers, and more that performs work more easily.