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The first term of a geometric sequence is 5 and the common ratio is 2. What is the 4th term of the sequence?
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1 vote
The first term of a geometric sequence is 5 and the common ratio is 2. What is the 4th term of the sequence?

User Uday Kiran
by
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1 Answer

1 vote

Answer:

80

Explanation:


a_n=a_1\cdot r^(n-1)\\\\a_1=5\\r=2\\n=4\\\\a_4=5\cdot2^4=5\cdot16=80

User Flaschenpost
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