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To calculate the probabilities of compound events, you can use the multiplication rule or the addition rule, depending on whether the events are independent or mutually exclusive. The multiplication rule is used when the events are independent, and you multiply the probabilities of the individual events. The addition rule is used when the events are mutually exclusive, and you add the probabilities of the individual events.
negetive integers are not closed under addition but positive integers are.
If the vectors form a polygon, their sum is zero..
The answer to this question is... We use addition in every day life for work and shops
PEMDAS RULE IS parentheses,exponent,multiplication,division,addition,subtraction