SOLUTION: What is Sn for the arithmetic series with d = -4, an = 27, and n = 9? a. 360 b. 387 c. 418 d. 451

SOLUTION: What is Sn for the arithmetic series with d = -4, an = 27, and n = 9? a. 360 b. 387 c. 418 d. 451

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Question 294403: What is Sn for the arithmetic series with d = -4, an = 27, and n = 9?
a. 360
b. 387
c. 418
d. 451
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Sum=

Sum=
b) is the answer.
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