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OpenStudy (anonymous):
help me please!! <3 What / Which of the following sequences are arithmetic? Justify your answers. a) 1, 4, 8, 13 b) 5, 11, 17, 23 c) 2, 4, 8, 16
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OpenStudy (yttrium):
b) because they have a common difference d = 6
OpenStudy (anonymous):
c i think :/ cuz
OpenStudy (anonymous):
cuz its 2^4
OpenStudy (yttrium):
that's a geometric series. :)
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