Question

Complex machines are defined by...

Answer 1

complex machines are 2 or more machines combined together to make a new one and make your work easier to do. examples of this would be levers, inclined planes and even car jacks.

Step-by-step explanation:

Answer 2

A complex machine is a machine made up of two or more simple machines that make your work easier to do. There are six simple machines from which all complex machines are made.

Examples:levers, wedges, pulleys, screws, wheel and axle and inclined planes.

Hope this helped you!

Step-by-step explanation: