Saturday
April 19, 2014

Homework Help: Math

Posted by Crystal on Saturday, January 12, 2013 at 2:53pm.

Okay, so I know this should be really easy but my mind is just drawing a blank:

For each series, calculate t12 and S12
a) 37 + 41 + 45 + 49 + ...

Okay so I calculated S12 to be 708, and I know that's right.

For t12, I know I can easily find the general formula and then use that to find t12, but isn't there a faster way to do it knowing that the sum is 708?

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