If you have a string of lights and one light that goes out but the others stay lit, which type of circuit do you have? series. short. broken. parallel.

Parallel

Step-by-step explanation:

It is a Parallel connection. Your house wiring is parallel. If one light bulb goes out in your house, the others remain on. In a series connection, if one goes, they all do. There is no such thing as a broken connection. Some series circuits are built so that when one light goes out, its base shorts, but that is not the expected answer.

correct answer:

b.(19,-2)

x = 3 ± √(5+y)