Mathematics
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OpenStudy (18jonea):
The sequence –14, –9, –4, 1, ... , 41 has 12 terms. Evaluate the related series.
324
162
157
167
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OpenStudy (18jonea):
@hartnn
jhonyy9 (jhonyy9):
what is the difference between -14 and -9 ?
OpenStudy (18jonea):
5
OpenStudy (18jonea):
@jhonyy9
OpenStudy (18jonea):
@jhonyy9
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OpenStudy (18jonea):
@hartnn
jhonyy9 (jhonyy9):
yes right
do you know what mean to evaluate the related series ?
OpenStudy (18jonea):
no
jhonyy9 (jhonyy9):
why no - you dont learned it again ?
OpenStudy (18jonea):
I dont know what you mean by do you know what mean to evaluate the related series ?\\
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jhonyy9 (jhonyy9):
do you understand what you need to do for eavaluate one related series ?
OpenStudy (18jonea):
no I do not
OpenStudy (18jonea):
@jhonyy9
jhonyy9 (jhonyy9):
ok
so than you got that the difference between -14 and -9 is 5 how you think that will be the next number after 1 ?
OpenStudy (18jonea):
6
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jhonyy9 (jhonyy9):
exactly
next 6 ?
OpenStudy (18jonea):
11
16
21
26
31
36
41
OpenStudy (18jonea):
@jhonyy9
jhonyy9 (jhonyy9):
right
so than you see these choices how you think that will be necessary to do for get one from these choices ?
OpenStudy (18jonea):
im not quite sure
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jhonyy9 (jhonyy9):
not it s problem just write me what you think about
OpenStudy (18jonea):
n/2 (a1+an)
OpenStudy (18jonea):
12/2 =6
OpenStudy (18jonea):
-14+41=27
OpenStudy (18jonea):
6x 27=162
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OpenStudy (18jonea):
that would be my guess
OpenStudy (18jonea):
@jhonyy9
jhonyy9 (jhonyy9):
nice work
you are right - and than you see there exist the choice of 162
you dont need help from nobody - than i see it right - yes ?