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Babynini
 one year ago
A partial sum of an arithmetic sequence is given. Find the sum.
10 over sigma
k=0 under sigma.
(3+0.25k) beside sigma
Babynini
 one year ago
A partial sum of an arithmetic sequence is given. Find the sum. 10 over sigma k=0 under sigma. (3+0.25k) beside sigma

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Babynini
 one year ago
Best ResponseYou've already chosen the best response.0\[\Sigma (3+0.25k)\] with 10 on top and k=0 under the sigma

Babynini
 one year ago
Best ResponseYou've already chosen the best response.0@freckles have time? :)

Babynini
 one year ago
Best ResponseYou've already chosen the best response.0would the first step be to solve for k? how do I do that? o.o

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1434069542255:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Start by plugging in 0 for k to solve for a0, then plug in 10 to find a10

Babynini
 one year ago
Best ResponseYou've already chosen the best response.0oo not sn=(n/2)(a1+an) ?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0no. Generally use a1 for the sum of the first n terms, but they started this one at 0

Babynini
 one year ago
Best ResponseYou've already chosen the best response.0so plug in 0 for k in 3+0.25k ? then a0 would be = 3

Babynini
 one year ago
Best ResponseYou've already chosen the best response.0Where do I plug the 10 in?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0into the same formula

Babynini
 one year ago
Best ResponseYou've already chosen the best response.0and that is what a_10 equals?

Babynini
 one year ago
Best ResponseYou've already chosen the best response.0how'd you find that? o.o

Babynini
 one year ago
Best ResponseYou've already chosen the best response.0..hah ok. so then the whole thing equals 46.75

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0basically there are 11 numbers from 0 to 10 inclusive

Babynini
 one year ago
Best ResponseYou've already chosen the best response.0ah gotcha. That makes more sense.

Babynini
 one year ago
Best ResponseYou've already chosen the best response.0n represents how many numbers there are in total then.
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