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OpenStudy (anonymous):
State whether the sequence is arithmetic. If so, state the common difference. 1.8, 3.6, 7.2, 14.4, ... Answer 1.8 -1.8 not arithmetic 16.2
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OpenStudy (anonymous):
Here, find t3-t2 and t2-t1
OpenStudy (anonymous):
C.
OpenStudy (anonymous):
If t3-t2=t2-t1 then arithmetic with common difference=t3-t2
OpenStudy (anonymous):
Yes
OpenStudy (anonymous):
So C ?
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OpenStudy (anonymous):
yep
OpenStudy (anonymous):
it is C
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