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OpenStudy (anonymous):
Write the explicit formula that represents the geometric sequence -2, 8, -32, 128
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jimthompson5910 (jim_thompson5910):
first term is ???
OpenStudy (anonymous):
-2
jimthompson5910 (jim_thompson5910):
common ratio is ???
OpenStudy (anonymous):
mutiplying by4
jimthompson5910 (jim_thompson5910):
close
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OpenStudy (jhannybean):
This question has literally been posted up 5-6 times now,wow. I am appalled.
jimthompson5910 (jim_thompson5910):
this same exact one?
OpenStudy (jhannybean):
Yes,
OpenStudy (anonymous):
Really????! popular ? huh?
jimthompson5910 (jim_thompson5910):
"mutiplying by4" is close, but not fully correct
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OpenStudy (jhannybean):
Sorry, carry on. Haha.
OpenStudy (anonymous):
close but no cigar :)
OpenStudy (anonymous):
The integers always mess with my mind.
jimthompson5910 (jim_thompson5910):
notice how you have the signs alternating (negative, positive, negative, etc)
OpenStudy (anonymous):
8x16 =128
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jimthompson5910 (jim_thompson5910):
|dw:1420258410739:dw|
OpenStudy (anonymous):
-2 x -16=-32
jimthompson5910 (jim_thompson5910):
you were close with the 4, it's just -4 |dw:1420258435778:dw|
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