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Mathematics 12 Online
OpenStudy (anonymous):

Write the sum using summation notation, assuming the suggested pattern continues. -8 - 3 + 2 + 7 + ... + 67

OpenStudy (anonymous):

What is the pattern of the numbers?

OpenStudy (anonymous):

You there?

OpenStudy (tkhunny):

There is not "THE suggested pattern" {emphasis added}. There is "a suggested pattern". Calculate the difference between each successive pair. -8 ==> -3 -3 ==> +2 etc...

OpenStudy (anonymous):

So it would be 5

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