anonymous
  • anonymous
15c2/7c6
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
Do you have instructions for this problem?
anonymous
  • anonymous
Its use the formula nCr to evlauate the expression
anonymous
  • anonymous
On your graphing calculator?

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More answers

anonymous
  • anonymous
yeah
anonymous
  • anonymous
what would it come out to
anonymous
  • anonymous
15
anonymous
  • anonymous
no
anonymous
  • anonymous
What do you mean? Did I mess up?
anonymous
  • anonymous
its not 15
anonymous
  • anonymous
Hang on...
anonymous
  • anonymous
15c2=105 and 7c6=7 right?
anonymous
  • anonymous
yes
anonymous
  • anonymous
So, 105/7=15 right? Or maybe I misread your equation...
anonymous
  • anonymous
What did you get?
anonymous
  • anonymous
\[\frac{\frac{15!}{2!13!}}{\frac{7!}{6! }}=15 \] The cobination of 15 things taken 2 at a time divided by 7 things taken 6 at a time?
anonymous
  • anonymous
That's what I thought too
anonymous
  • anonymous
I typed in 15 and it said wrong
anonymous
  • anonymous
I posted as soon as something worked out and did not realize that you had posted. Sorry.
anonymous
  • anonymous
so
anonymous
  • anonymous
No problem robtobey. Hang on prettychicka45, I'm thinking...
anonymous
  • anonymous
So your problem looks exactly like this: \[15c2/7c6\]
anonymous
  • anonymous
Meaning 15c2 divided by 7c6 right?
anonymous
  • anonymous
yes
anonymous
  • anonymous
O.K...
anonymous
  • anonymous
i
anonymous
  • anonymous
Still not seeing why 15 is wrong... Thinking...
anonymous
  • anonymous
Anything else in your instructions? Any other hints?
anonymous
  • anonymous
it says to type as a fraction
anonymous
  • anonymous
Try typing 15/1
anonymous
  • anonymous
it was 65
anonymous
  • anonymous
OK, that's not quite making sense...
anonymous
  • anonymous
That's not even a fraction
anonymous
  • anonymous
Sorry
anonymous
  • anonymous
Any thoughts anyone?

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