Find the first, fourth, and eighth terms of the sequence. A(n) = –5 • 3n–1 please help me
2 answers:
Answer:
First term: -10
Fourth term: -55
Eighth term: -115
Step-by-step explanation:
I am assuming the means -5(3n-1). To find the first term, plug in 1. You will get -5(3*1-1) or -5*2 or -10.
To find the fourth term, plug in 4. You will get -5(3*4-1) or -5*11 or -55.
To find the eighth term, plug in 8. You will get -5(3*8-1) or -5*23 or -115.
So the answers are -10, -55, and -115.
Answer:
-5, -135, -10935
Step-by-step explanation:
just bc
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