Determine whether the sequence is geometric.If so, find the common ratio. $7,21,63,189 , \ldots$
A)Geometric sequence, $r = 3$
B)Not a geometric sequence
C)Geometric sequence, $r = 8$
D)Geometric sequence, $r = 7$
E)Geometric sequence, $r = 4$

Question

Determine whether the sequence is geometric.If so, find the common ratio.  $7,21,63,189 , \ldots$  
A)Geometric sequence, $r = 3$
B)Not a geometric sequence
C)Geometric sequence, $r = 8$
D)Geometric sequence, $r = 7$
E)Geometric sequence, $r = 4$

Quizplus · Accepted Answer

The sequence is geometric because each term is obtained by multiplying the previous term by 3.

Determine Whether the Sequence Is Geometric 7,21,63,189,…7,21,63,189 , \ldots7,21,63,189,… A)Geometric Sequence r=3r = 3r=3

Determine Whether the Sequence Is Geometric $7,21,63,189 , \ldots$ A)Geometric Sequence $r = 3$