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trumpetmaster7777
Group Title
Given the sequence –3, 0, 3, which of the following is equivalent to:
 one year ago
 one year ago
trumpetmaster7777 Group Title
Given the sequence –3, 0, 3, which of the following is equivalent to:
 one year ago
 one year ago

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trumpetmaster7777 Group TitleBest ResponseYou've already chosen the best response.0
\[\sum_{n=5}^{8}A subscript N\]
 one year ago

trumpetmaster7777 Group TitleBest ResponseYou've already chosen the best response.0
54 102 144 162
 one year ago

trumpetmaster7777 Group TitleBest ResponseYou've already chosen the best response.0
@primeralph @terenzreignz
 one year ago

trumpetmaster7777 Group TitleBest ResponseYou've already chosen the best response.0
@Zarkon
 one year ago

RolyPoly Group TitleBest ResponseYou've already chosen the best response.1
First term is 3, common difference is 0(3) = 3 So, the sequence is \[a_n = 3+3(n1)\]
 one year ago

trumpetmaster7777 Group TitleBest ResponseYou've already chosen the best response.0
so, we can do that plugging n2, n3 etc. into the next equations?
 one year ago

trumpetmaster7777 Group TitleBest ResponseYou've already chosen the best response.0
[3+3(n1)]+[3+3(n2)] etc.?
 one year ago

RolyPoly Group TitleBest ResponseYou've already chosen the best response.1
You need to find sum from the fifth term to the eighth term, so, find a5, a6, a7, a8 and add them together.
 one year ago

RolyPoly Group TitleBest ResponseYou've already chosen the best response.1
n is the number of term
 one year ago

trumpetmaster7777 Group TitleBest ResponseYou've already chosen the best response.0
that's right we start on 5 right? so like this?
 one year ago

RolyPoly Group TitleBest ResponseYou've already chosen the best response.1
e.g. \[a_5 = 3+3(51)=...\]
 one year ago

RolyPoly Group TitleBest ResponseYou've already chosen the best response.1
Start from 5, yes.
 one year ago

trumpetmaster7777 Group TitleBest ResponseYou've already chosen the best response.0
[3+3(n5)]+[3+3(n6)]+[3+3(n7)]+[3+3(n8)]?
 one year ago

trumpetmaster7777 Group TitleBest ResponseYou've already chosen the best response.0
(3+3n15)+(3+3n18)+ (3+3n21)+ (3+3n24)?
 one year ago

trumpetmaster7777 Group TitleBest ResponseYou've already chosen the best response.0
am I doing this right?
 one year ago

trumpetmaster7777 Group TitleBest ResponseYou've already chosen the best response.0
(3n18)+(3n21)+(3n24)+(3nx)+(3n27)
 one year ago

trumpetmaster7777 Group TitleBest ResponseYou've already chosen the best response.0
i'm not sure what to do from there
 one year ago

RolyPoly Group TitleBest ResponseYou've already chosen the best response.1
\[a_5 = 3+3(51)\]\[a_6 = 3+3(61)\]\[a_7 = 3+3(71)\]... Then, find \(a_5+a_6+a_7+a_8\)
 one year ago

trumpetmaster7777 Group TitleBest ResponseYou've already chosen the best response.0
=−3+3(5−1) =−3+3(6−1) =−3+3(7−1) =3+3(81)
 one year ago

trumpetmaster7777 Group TitleBest ResponseYou've already chosen the best response.0
=6+15 =6+18 =6+21 =6+24 =9 =12 =15 =18 9+12+15+18
 one year ago

trumpetmaster7777 Group TitleBest ResponseYou've already chosen the best response.0
54
 one year ago

trumpetmaster7777 Group TitleBest ResponseYou've already chosen the best response.0
thank you so much guys
 one year ago
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