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Lapatulllka [165]
2 years ago
8

What is the recursive formula for this geometric sequence? -2, -16, -128, -1024,

Mathematics
2 answers:
dolphi86 [110]2 years ago
5 0

Answer: the answer is A

FinnZ [79.3K]2 years ago
3 0
<h3>Answer: Choice A</h3>

The first line shown in choice A is a_1 = -2 which means "the first term is -2"

The next line in choice A means "the nth term (a_n) is found by multiplying the prior term (a_{n-1}) by 8". Put another way: multiply each term by 8 to get the next term.

first term = -2

second term = 8*(first term) = 8*(-2) = -16

third term = 8*(second term) = 8*(-16) = -128

fourth term = 8*(third term) = 8*(-128) = -1024

and so on.

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