jdonaldson2199 jdonaldson2199

17-01-2018
Mathematics

contestada

If 40 people shake hands with each person in the class, how many handshakes

Respuesta :

magicistotesrea magicistotesrea

20-01-2018

780 handshakes.
(n(n-1))/2
(40(40-1))/2
(40*39)/2
1560/2
780

Answer Link

Otras preguntas

instructions find the value of x

I was alone at home and suddenly door bell rang. I opened the door and found an old man.......

HELP say im getting it wrong the perimeter of the polygons is ?

Translate to Spanish these 'Affirmative TU Command' Sentences a. Come with me to the movies; b. Tell me your opinion about the class; c. Wait a minute, I am d

Choose one of the options and fill in the blank. chemical energy skeletal cardiac smooth food and nutrients exercise striations or contractions Movement is caus

Please help 20 points. I will give Brainly to who ever get it right.

Answer fast please! I need an answer before 9:00!

. Read the situations and then write sentences, using past perfect continuous. 1. The two boys came into the house. One had a black eye and the other had a cut

1. Name the postulate or theorem you can use to prove the triangles congruent.

What is the area that f this composite figure?