A dog is leashed to the corner of a house. How much running area does the dog have? Round answer to the nearest square foot, if
necessary.
1 answer:
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Answer:
Step-by-step explanation:
Given that *is the binary operation in the sets of integers.
closure: a-b+ab is again an integer belongs to Z. Hence closure is true.
Associativity:
The two are not equal. Hence this cannot be a group as associtiavity does not hold good.