What is the 5th term of this geometric sequence? 100, 20, 4, 0.8, … a. 124.8 b. 0.2 c. 0.16 d. 0.032

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asked Jan 20, 2017 108k views

2 Answers

Trilok Singh · Answer 1 · 2017-01-23T16:05:42+0000

First we have to find out the common number of them.
For that purpose, the first number should be divided by next number.
100/20 = 5
20/4 = 5
4/0.8 = 5

we have found that 5 is the common number.
0.8/5 = 0.16

therefore the answer is c

What is the 5th term of this geometric sequence? 100, 20, 4, 0.8, … a. 124.8 b. 0.2 c. 0.16 d. 0.032

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