Mathematics, 28.08.2021 14:00 xxcynthistxx

N! Use:
n 'k k!(n-k)!
to solve the combination.
After a band parent meeting, each of
the ten members shook hands with
each other once. How many
handshakes were there in all?
Hint: Remember that one handshake involves
two people.
[?] handshakes

N!

Use:
n 'k k!(n-k)!
to solve the combination.
After a band parent meeting, each of
the ten memb

Answers: 1

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N! Use:
n 'k k!(n-k)!
to solve the combination.
After a band parent meeting, eac...

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