Answer:
15 players played in the chess tournament.
Step-by-step explanation:
When there are 15 players, the first player plays 14 games and step aside.
remaining 14 player
next player plays 13 games. steps aside
remaining 13 players
next player plays 12 games. steps aside
remaining 12 players
next player plays 11 games. steps aside
remaining 11 players
.
.
.
.
Last player plays 1 game and steps aside
remaining 1 player who will not play against himself.
∴ Sum of all games played
= 14 + 13 + 12 + 11 + 10 + 9 + 8 + 7 + 6 + 5 + 4 + 3 + 2 + 1 = 105 games played
Answer:
undefined slope
Step-by-step explanation:
The points contain the same x-value. This means that the line is vertical.
All vertical lines have an undefined slope.
Hope this helps.
Answer:
(-5,-3)
Step-by-step explanation:
y values minus y values over x values minus x values
100,000,000 is 100 million
10,000,000 is 10 milllion
Answer: 33 degrees
Step-by-step explanation:
See paper attached. (: