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Bingel [31]
3 years ago
5

There are 21 rings . how many groups of 3 keys rings cab you make

Mathematics
1 answer:
Ksivusya [100]3 years ago
3 0
You can make 7 groups.
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For what real values of does the quadratic 12x^2+kx+27=0 have nonreal roots
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Step-by-step explanation:

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