SOLUTION: In how many ways can Joe select 1 or more of 6 friends to a dinner party?
Algebra.Com
Question 321834: In how many ways can Joe select 1 or more of 6 friends to a dinner party?
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
)
is the number of combinations of 
things taken 
at a time and is calculated by !})
You need:
\ +\ \left(6\cr 2\right\)\ +\ \left(6\cr 3\right\)\ +\ \left(6\cr 4\right\)\ +\ \left(6\cr 5\right\)\ +\ \left(6\cr 6\right\))
You have a lot of arithmetic to do.
John
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