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OpenStudy (anonymous):
HELP!!! :O Which expression describes the rule of this sequence (Question) 7, 14, 21, 28, 35, ? A 7+n B 7n C7^n (Carrying the n ) D n+ 7+7
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OpenStudy (anonymous):
b
OpenStudy (anonymous):
7x1 7x2 7x3
OpenStudy (anonymous):
See, here a = 7 and the common difference d = 14 - 7 = 7 So use: \[t_n = a + (n-1).d\] Put the values of a and d here and solve for tn..
OpenStudy (anonymous):
Thanks guys!!!
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