Question

Find the sum of the first 15 terms of the arithmetic sequence 4, 7, 10, 13, …

Answer 1

+3

Answer 2

so u got it?

Answer 3

no

Answer 4

mmm r u talking about the diference it is 3

Answer 5

I can explain

Answer 6

How do you get 4 + ? = 7

Answer 7

It was in the question

Answer 8

well so i let it to u firejay

Answer 9

@julian25 See if you can answer my question

Answer 10

@DaWizjr Do you have a problem? Any questions

Answer 11

first u need to find the diference do u know what it is dawzjr?

Answer 12

4 + (3) = 7, 7 + (3) = 10, 10 + (3) = 13. The answer is in the parentheses.

Answer 13

Make sense

Answer 14

Well duh but its asking for the sum of the first 15 terms

Answer 15

"sum"

Answer 16

If you know that's is adding 3 each time, you can go on from 13 + 3 = 16, 16 is the forth term, you do the rest

Answer 17

^ you are write but its asking for the "sum" so I brb

Answer 18

Figure out what the 15 terms are and adding them together

Answer 19

add all the terms together is what I meant

Answer 20

u must know the diference in order to get the sum

Answer 21

It's not the difference, it's the sum of 3

Answer 22

Meaning it's adding 3 each time

Answer 23

t1 = 2
t10 = 6.5
S10 = 42.5

t1 = 2
t20 = 11.5
S20 = 135

Answer 24

THis is an example

Answer 25

it is called common diference

Answer 26

It says what is the sum of the first 10 terms of the sequence that starts with 2,2.5,3,3.5... what is the sum of the first 20 terms?

Answer 27

t1 = 2
t10 = 6.5
S10 = 42.5

t1 = 2
t20 = 11.5
S20 = 135

Answer 28

don't make it complicated

Answer 29

Find the sum of the first 15 terms of the arithmetic sequence 4, 7, 10, 13, …

Answer 30

4,7,10,13,16,19,21,24,27,30,33,36,39,41,44,47,49

Answer 31

Incorrect, but right

Answer 32

so 15=44

Answer 33

!44!

Answer 34

nope it's 46

Answer 35

How?

Answer 36

You added wrong 19 + 3 = 22 + 3 = 25, and so on

Answer 37

ok cool