Question

What is the d value of the following arithmetic sequence?
5, 2, -1, -4, -7

Answer 1

look at what you need to do to each term in order to get to the next one.

Answer 2

so, for example, what do you need to do to 5 in order to get to 2?

Answer 3

@asnaseer -3???

Answer 4

correct. now just double check that this works for all subsequent terms

Answer 5

@asnaseer how do i check?

Answer 6

well the next term is 2. so if you subtract 3 from 2 what do you get?

Answer 7

1st term = 5
2nd term = 5 - 3 = 2
3rd term = 2 - 3 = ?

Answer 8

@asnaseer i got it thanks!!! just to make sure (Find the six arithmetic means between 1 and 29) i got 5, 9, 13, 17, 21, 25

Answer 9

hang on - thats a different question you just listed?

have you understood this question?

Answer 10

yea

Answer 11

so what do you think 'd' represents in this question?

Answer 12

idk

Answer 13

:/

Answer 14

i know :(

Answer 15

it represents the common difference of an arithmetic sequence.

Answer 16

ok.. but for the one i listed above you have to do something different to get the answer?

Answer 17

first of all I would recommend you look at this site to fully understand what an arithmetic sequence is: http://www.mathsisfun.com/algebra/sequences-sums-arithmetic.html

for your new question - could you please post it as a new question in the list on the left