Patrick B. answered • 09/14/19
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common ratio R
k*R^0 = 7
k = 7
the second term gives: 7 * R = 21
R = 3
So the sequence is 7*3^n, n=0,1,2,3
Ericka F.
asked • 09/13/19College Algebra
If the first 4 terms of a geometric sequence are 
, then the formula for the 
term in the sequence is ___________.
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