3 and -3 are said to be the square roots of 9. A square root is written with a radical symbol √ and the number or expression inside the radical symbol, below denoted a, is called the radicand. ... Negative numbers don't have real square roots since a square is either positive or 0.
Vicky’s average speed is 0.55m/h
True
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A closed circuit basically means everything is connected by wires and for this setup every device receives electricity making this true
