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horrorfan [7]
2 years ago
15

determine whether the sequence is geometric. if so, find the common ratio. -3125, 625, -125, 25,....​

Mathematics
1 answer:
Vadim26 [7]2 years ago
8 0
Geometric. Answer C) -1/5
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Increase $110,000 by 20% 3 times.

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So we must add 22000 to 110,000, then take 20% of the new cost, and repeat.

Add them
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Take another 20% of that
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So the value is now $190,080

A much more efficient way to do this would be multiplying 1.2 instead of 0.2, and skipping the adding part, as you already took 100% of it and are adding 20% more.

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