Calculate the volume of a sphere with a radius of 10 feet. Round answer to nearest tenth
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If x people play each other in pairs exactly once, then there will be
hmm
if 1, then 0 games
if 2, then 1 game
if 3 then 3 games ab, ac, bc
if 4 then ab, ac, ad, bc, bd, cd then 6 games
if 5 then ab, ac, ad, ae, bc, bd, be, cd, ce, de
we see a pattern
summation
first term is 0, when n=1
increases by 1
so
simlified to
for n games, a total of
games are played
for 27 players, there are a total of
27(13)=351 games
hmm
if 1, then 0 games
if 2, then 1 game
if 3 then 3 games ab, ac, bc
if 4 then ab, ac, ad, bc, bd, cd then 6 games
if 5 then ab, ac, ad, ae, bc, bd, be, cd, ce, de
we see a pattern
summation
first term is 0, when n=1
increases by 1
so
for n games, a total of
for 27 players, there are a total of