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butalik [34]
3 years ago
13

9 is a member of A {1,3,8} intersecting D {3,9}

Mathematics
1 answer:
Jet001 [13]3 years ago
5 0

The intersection of the two sets is the list of members that appear in both sets. That is {3}.

Your statement is FALSE.

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in a certain pentagon, the interior angles are a,b,c,d,e where a,b,c,d,e are integers strictly less than 180. ("Strictly less th
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  least to greatest: {61, 61, 61, 178, 179}

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If the third-largest angle is 61°, the smallest three angles cannot be larger than 183°. Since the total of all angles must be 540°, and the total of the largest two cannot be greater than 179°×2 = 358°, the sum of the smallest three must be at least 540° -358° = 182°.

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