anonymous
  • anonymous
Can someone help me with a question for a fan and medal?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
Find B union D. B: {-3, -1, 3, 4, 9, 11} D: {numbers divisible by 3 from 1 to 15}
Kash_TheSmartGuy
  • Kash_TheSmartGuy
3 and 9.
sh3lsh
  • sh3lsh
In principle, Union is like appending elements. However, note in sets, if the elements are the same, only one counts.

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sh3lsh
  • sh3lsh
Union, not intersection. @Kash_TheSmartGuy
anonymous
  • anonymous
Okay Kash, but how did you get it?
anonymous
  • anonymous
Wait so is Kash wrong sh3lsh?
sh3lsh
  • sh3lsh
B: {-3, -1, 3, 4, 9, 11} D: {numbers divisible by 3 from 1 to 15} B: {-3, -1, 3, 4, 9, 11} D: {3, 6, 9, 12, 15} B U D: { -3, -1, 4, 11, 3, 6, 9, 12, 15} B (intersection) D {3, 9}
Kash_TheSmartGuy
  • Kash_TheSmartGuy
So, I was correct!
sh3lsh
  • sh3lsh
Does this make sense? Know that sets are unordered sequences with unique elements. @Kash_TheSmartGuy , you do understand that you gave the answer B (intersection) D, not B (union) D, right?
anonymous
  • anonymous
Yeah, it does. I'll give Sh3lsh a fan since he explained it and Kash a medal. Thanks guys.
sh3lsh
  • sh3lsh
:|
Kash_TheSmartGuy
  • Kash_TheSmartGuy
Thank you!
anonymous
  • anonymous
Well I can't give two medals, so thats the most I can give out. Sorry
sh3lsh
  • sh3lsh
The response he gave was incorrect. Write that on a test, and you would receive no credit.
anonymous
  • anonymous
But the question is multiple choice, and {3,9} was one of the answer choices. And you got the same answer too
sh3lsh
  • sh3lsh
:| {3,9} is the INTERSECTION { -3, -1, 4, 11, 3, 6, 9, 12, 15} is the UNION
anonymous
  • anonymous
{3, 9} {-3, -1, 3, 4, 9, 11} { } {-3, -1, 3, 4, 6, 9, 11, 12, 15} These are the answer choices. You both said {3, 9}.
anonymous
  • anonymous
Find B union D. B: {-3, -1, 3, 4, 9, 11} D: {numbers divisible by 3 from 1 to 15} {3, 9} {-3, -1, 3, 4, 9, 11} { } {-3, -1, 3, 4, 6, 9, 11, 12, 15} This is the full question
sh3lsh
  • sh3lsh
I think you should review set operations. One can take the Union of a set. One can take the Intersection of a set. (and more, but that's later) The previous commenter who didn't rectify his mistake found the INTERSECTION of the set. You asked for the UNION of the set. I explained how one could find the UNION and INTERSECTION. https://www.khanacademy.org/math/probability/independent-dependent-probability/basic_set_operations/v/intersection-and-union-of-sets
anonymous
  • anonymous
I'm confused by what you're trying to say. Is the answer {3, 9} or not?
sh3lsh
  • sh3lsh
No. But I cannot explain any longer.

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