Topic:Geometric sequence
Identify the common ratio and the next term in the following sequences
1.)1,2,4,8
2)80,20,5
3)2,-8,32,-127
Identify the common ratio and the next term in the following sequences
1.)1,2,4,8
2)80,20,5
3)2,-8,32,-127
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Answer:
1. r=2
2. r=5
3. r=-4
Step-by-step explanation:
follow this formula
An=A1r n-1(ratio raise to n-1)
8=1r³
8=r³
r=2