Question

hey can anyone help me with series/sequences? (algebra 2)

Answer 1

hey what type of sequences/series?

Answer 2

um not sure can i give u a problem and u try to help?

Answer 3

????

Answer 4

sure

Answer 5

Write the series using summation notation.
7 + 10 + 13 + 16 + 19

Answer 6

ah ok. so the first number is 7, so that is a constant

Answer 7

k...

Answer 8

do i have to pay to get help on here??

Answer 9

\[\sum_{n=0}^{n=4} 7+3*n\]
so something liek that?

Answer 10

yes but how did u get that....

Answer 11

well, you are trying to make the summation equation part of it (the 7 + 3*n in this case), generate all of the numbers in the series if you input different values for "n".

So given 7+10+13+16+19, you can start at the left.

So if when n=0, the thing on the right is 7, then we know that 7 is a part of the summaition series

Answer 12

oh

Answer 13

so then the question is , what can I add to 7, so when n=1 I'm adding 10, when n=2 I'm adding 13, and n=3 I'm added 16

Answer 14

so in fact my answer was wrong =)

Answer 15

o...

Answer 16

or wait, sorry, I was right lol

Answer 17

ok so if n=0, and the right side is 7

Answer 18

and n=1, and the right side is 10

Answer 19

I've added 3

Answer 20

so my guess is that the right side is 7+3(n)

Answer 21

let's see if it holds true for n=2

Answer 22

for n=2, according to me, the third number is the series would be:
7 + (3*2) = 7+6 = 13

Answer 23

and so on..

Answer 24

kk thanks!!!!!!!

Answer 25

do i have to pay for this..

Answer 26

no its free