Answer:
r = -
Step-by-step explanation:
The common ratio r of a geometric sequence is
r = =
= .....
Hence
r = =
= -
3 1/4 x 5/8? that is, 3 and 1/4 times 5/8
2 answers:
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Answer:
12750
Step-by-step explanation:
The sequence of visitors is
50, 100, 200, 400, .....
This is a geometric sequence
with common ratio r = 2
The sum to n terms is found using
=
( a is the first term )
=
= 50 × 255 = 12750