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OpenStudy (anonymous):
what is the pattern for the sequence 3 ,12, 27, 48?
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OpenStudy (anonymous):
what?
OpenStudy (anonymous):
75 is the next
OpenStudy (anonymous):
t(n) = 3n^2
OpenStudy (anonymous):
how did u get it
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OpenStudy (anonymous):
the adding goes 9, 15, 21 (12-3=9. 27-12=15) but in between each is +6 (ie. 15-9 = 6. 9+6=15, etc.) so the next would be 54.
OpenStudy (anonymous):
9,15,21, etc.
OpenStudy (anonymous):
how did you get 3n^2?
OpenStudy (anonymous):
by observation?
OpenStudy (anonymous):
can you explain?
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OpenStudy (anonymous):
how can u explain observation?
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