Free help with homework

Why join Brainly?

  • ask questions about your assignment
  • get answers with explanations
  • find similar questions

Suppose there are 20 persons in a birthday party. How many handshakes are there altogether if everyone shakes hands with each other?

a. what is the equation of the function?
b. how did you get the equation?
c. if there are 100 persons, how many handshakes are there given the same condition?



One person handshakes 19 people because he cant handshake himself.
19 handshakes per person
 20 people
19x20 = 380 handshakes
f(x) = x(x-1)
b.) by looking the solution 19 is 20-1 which is x
c.100(100-1) = 9900 handshakes
0 0 0
Wait lng po ..ang hrap po ksi isolve ng mentally ..wait  nio po answer ko

0 0 0
The Brain
  • The Brain
  • Helper
Not sure about the answer?
Learn more with Brainly!
Having trouble with your homework?
Get free help!
  • 80% of questions are answered in under 10 minutes
  • Answers come with explanations, so that you can learn
  • Answer quality is ensured by our experts