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January 25, 2015

January 25, 2015

Posted by **drew** on Tuesday, March 5, 2013 at 9:25pm.

A. 250

B. -280

C. (-23)

D. 132

C.

- algebra -
**Reiny**, Tuesday, March 5, 2013 at 10:45pma = -1

d = -6

n = 10

sum(10) = (10/2)(-2 + 9(-6))

= 5(-56) = -280

looks like B)

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