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then what did I copy paste? ;/Yeah and this is the explanation from the link you gave
1. A (Estimated Difficulty Level: 4)
The first nine terms of the sequence are:
n, n + 5, n + 10, n + 15, . . . , n + 40.
(You should probably write all nine terms out to avoid
mistakes.) Adding these terms up gives: 9n + 180. The
average is the sum (9n + 180) divided by the number of
terms (9). The average is then: (9n + 180)/9 = n + 20.
No problem. Us humans are bound to make mistakes.
OH well.. You go on posting some questions nowNo problem. Us humans are bound to make mistakes.
Some other time dude. Got midterms to study for.
All the best.
At least you try 'em. They are easy. .-.
Okay. All the best.Not anymore. Some other time dude. Got midterms to study for.
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