anonymous
  • anonymous
1. The possible outcomes for rolling a pair of fair dice are shown below. What is the probability of rolling a sum that is a composite number?
Probability
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
do you know what "composite number" means ?
anonymous
  • anonymous
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anonymous
  • anonymous
no

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anonymous
  • anonymous
lol then you can't do it !
anonymous
  • anonymous
but i will tell you
anonymous
  • anonymous
a composite number is a whole number that can be written as a product of two other whole numbers (not including itself and 1) another way to say it is a composite number is NOT a prime number
anonymous
  • anonymous
does that help?
anonymous
  • anonymous
i never understood composite and prime numbers no matter how much sombody tried to explain it to me
anonymous
  • anonymous
here is an example 6 is composite because \(6=3\times 2\) 7 in prime, because it only has itself and 1 as a factor
anonymous
  • anonymous
oh so sorta like odd and even?
anonymous
  • anonymous
that is really all there is to it the only part that might be confusing is that 1 is not prime or composite, and 2 is prime yeah sort of but even odd only means divisible by 2 9 is composite because \(9=3\times 3\) but it is not even
anonymous
  • anonymous
the numbers you have to consider are \[\{2,3,4,5,6,7,8,9,10,11,12\}\] can you tell which ones of those are composite and which are prime?
anonymous
  • anonymous
the choices for my question are A:7/12, B:1/2,C:5/12,and D:1/12
anonymous
  • anonymous
i forgot to put those up when i asked the question sorry
anonymous
  • anonymous
i am not interested in choices particularly more interested in if you know which numbers are composite then it is only a matter of counting
anonymous
  • anonymous
idk what the answer is tho
anonymous
  • anonymous
let me ask one more time of the numbers \[\{2,3,4,5,6,7,8,9,10,11,12\}\] which are composite?
anonymous
  • anonymous
that is all you need to know to do this that, and how to count
anonymous
  • anonymous
well i know how to count lol
anonymous
  • anonymous
the reason im trying to get the answer is cause studyisland closes tomorrow and i need the answer as fast as i can get it and im under alot of pressure i only have 5 more days of school to get my grade up
anonymous
  • anonymous
name the composite numbers, we get the answer in two seconds after you name them study island? geez
anonymous
  • anonymous
im in seventh grade its alot harder they make us do like 9th grade work
anonymous
  • anonymous
i will show you what do do as soon as you name the composite numbers if you cannot do that, there is no way you can do this question, might as well forget it
anonymous
  • anonymous
then i guess i might as well forget it then
anonymous
  • anonymous
want to take them one at a time? i will start 2 is prime 3 is prime how about 4?
anonymous
  • anonymous
prime?
anonymous
  • anonymous
no \(4=2\times 2\) all even numbers except 2 are composite
anonymous
  • anonymous
how about 5?
anonymous
  • anonymous
composite
anonymous
  • anonymous
no 5 is prime, it has no factors other than 1 and 5
anonymous
  • anonymous
6?
anonymous
  • anonymous
composite
anonymous
  • anonymous
yers!
anonymous
  • anonymous
7?
anonymous
  • anonymous
prime?
anonymous
  • anonymous
yes 8?
anonymous
  • anonymous
composite
anonymous
  • anonymous
yes 9? (we did this one)
anonymous
  • anonymous
composite
anonymous
  • anonymous
whew yes 10?
anonymous
  • anonymous
composite
anonymous
  • anonymous
yes 11
anonymous
  • anonymous
prime
anonymous
  • anonymous
yes 12
anonymous
  • anonymous
composite
anonymous
  • anonymous
ok now we are almost done!!
anonymous
  • anonymous
we list the composite numbers, then count how man times we see them in the table you posted they are \[\{4,6,8,9,10,12\}\]
anonymous
  • anonymous
how many 4's inside the table?
anonymous
  • anonymous
3?
anonymous
  • anonymous
yes good how many 6's?
anonymous
  • anonymous
2
anonymous
  • anonymous
hmm no count again
anonymous
  • anonymous
3
anonymous
  • anonymous
keep counting
anonymous
  • anonymous
oh 4
anonymous
  • anonymous
there are more than 3 sixes in the table
anonymous
  • anonymous
5
anonymous
  • anonymous
there are more than 4 they all lie on a diagonal right 5
anonymous
  • anonymous
how many 8's
anonymous
  • anonymous
2
anonymous
  • anonymous
hmm no all the 8's on a diagonal
anonymous
  • anonymous
4
anonymous
  • anonymous
nope
anonymous
  • anonymous
counting was supposed to be the easy part do you see all five 8's?
anonymous
  • anonymous
igtg my moms taking me to a bon fire but i will be working on this later but thank you for your time and effort and im sorry was any trouble but it was nice talking to u bye
anonymous
  • anonymous
enjoy the bon fire
anonymous
  • anonymous
thx

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