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pshichka [43]
2 years ago
8

Find the common ratio of the sequence -172, -86, -43, -21.5

Mathematics
1 answer:
IRISSAK [1]2 years ago
6 0
Common ratio means that you will be multiplying from the first number to get the second number.
To find the ratio we will work backwards, from right to left, and divide instead of multiply.
-43/-21.5 = 1/2
-86/-43= 1/2
-182/-86 = 1/2
r = 1/2
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