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Algebra 15 Online
OpenStudy (anonymous):

Find the thirtieth term of the following sequence. -6, -4, -2, 0, ... medals

OpenStudy (ddcamp):

What does the sequence look like it's doing?

OpenStudy (anonymous):

subtracting

OpenStudy (anonymous):

no adding beacuse its negative

OpenStudy (ddcamp):

Yup. How many do you add each time?

OpenStudy (anonymous):

2

OpenStudy (ddcamp):

OK. So, the first term is -6, and we add 2 for each term after that. To make things a bit easier, I'm going to say that the "zero-eth" term (the term before the first term) is -8 (2 less than -6) So, now we have: |dw:1412878094329:dw|

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