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Mathematics 18 Online
OpenStudy (anonymous):

mathproblem

OpenStudy (anonymous):

OpenStudy (anonymous):

@Directrix

OpenStudy (unklerhaukus):

find the difference between the first two terms: then find the difference between the second term and the third term: what do you get ?

OpenStudy (unklerhaukus):

12-8 = 17-12 =

OpenStudy (anonymous):

4 ,5

OpenStudy (unklerhaukus):

and what about the difference between the next pair; 23 and 17?

OpenStudy (anonymous):

6

OpenStudy (unklerhaukus):

if these three results were all the same, it would be an arithmetic sequence

OpenStudy (unklerhaukus):

is 4 = 5 = 6 true?

OpenStudy (anonymous):

yes

OpenStudy (unklerhaukus):

are you sure?

OpenStudy (anonymous):

i think so

OpenStudy (anonymous):

.

OpenStudy (unklerhaukus):

count it , 4 = . . . . 5 = . . . . . 6 = . . . . . . is 4 = 5 = 6 ?

OpenStudy (anonymous):

oh no

OpenStudy (unklerhaukus):

can the sequence be an arithmetic sequence?

OpenStudy (anonymous):

yes

OpenStudy (unklerhaukus):

then what is the common difference?

OpenStudy (anonymous):

4,5,6

OpenStudy (unklerhaukus):

a common difference means, that the difference between terms is the same each time, — it can be only one number

OpenStudy (anonymous):

i know what common difference means . won't it be 1

OpenStudy (unklerhaukus):

^that is: the common difference, between the differences, of the terms in the sequence/ The question is looking for: the difference between the terms in the sequence

OpenStudy (anonymous):

will it be NO

OpenStudy (unklerhaukus):

correct,

OpenStudy (unklerhaukus):

because 4,5,6 are all different

OpenStudy (anonymous):

oh i got it now thanks :))) FOR UR HELP

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