In this geometric sequence, what is the common ratio?
1 answer:
Hi there! The correct answer is D. -1/2
104 × -1/2 = -52
-52 × -1/2 = 26
26 × -1/2 = -13
...
Each time you multiply the preceding number by -1/2. Therefore the common ratio in this sequence is -1/2
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Hi there!!
I hope this answer helps.
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You can solve this with simple cross multiplication. (proportion)
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I do believe that the LCD of those would be 3
