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Which of these equations could represent the relationship between m and n?
None of these could represent anything!
What clues could help determine between equations and expressions?
An equation has the 'equals' sign ( = ) in it. An expression hasn't.
How is a arithmetic sequence found?
You take the difference between the second and first numbers.Then take the difference between the third and second numbers. If that difference is not the same then it is not an arithmetic sequence, otherwise it could be.Take the difference between the fourth and third second numbers. If that difference is not the same then it is not an arithmetic sequence, otherwise it could be.Keep checking until you think the differences are all the same.That being the case it is an arithmetic sequence.If you have a position to value rule that is linear then it is an arithmetic sequence.
What is the difference between 11111 and 20000?
To work that out you could do 20'000-11'111=8'889 Or 8'8889+11'111=20'000.
Which expressions form an equation with the given expression 6.3-2?
It could be: 6.3-2 = 4.3
