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Mathematics 10 Online
OpenStudy (anonymous):

possible?

OpenStudy (anonymous):

Help please

OpenStudy (anonymous):

259.667, trust me, I'm a genius.

OpenStudy (campbell_st):

so the 1st term is a = -1/3 n = 41 and the common difference is 2 so the sequence is -1/3, 5/3, 11/3, 17/3 .....

OpenStudy (anonymous):

Do we just plug in into the rule?

OpenStudy (anonymous):

Um The answer is 259.667

OpenStudy (campbell_st):

what is the common difference d

OpenStudy (campbell_st):

use the formula \[s _{n} = n/2(2a + (n -1)d)\]

OpenStudy (anonymous):

|dw:1334615543310:dw|

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