Answer:
15 is the area
Step-by-step explanation:
Answer:
<em>5</em><em> players participated in the tournament.</em>
Step-by-step explanation:
In a small chess tournament, 20 matches were played.
Let us assume that n number of players participated in the tournament
As in each game 2 players play, so the number of ways they can play is,

As they played 2 games with every other participant in the tournament.
So the total number of games is,

But it is given to be 20, so





As
, so we get n=5.
Therefore, 5 players participated in the tournament.
Circumference = πD
30π = πD
D = 30 inches
Answer: 30 inches
Answer:
m = 1
b = 0
Step-by-step explanation:
Slope(m) = 
Y-intercept(b) = 0
Equation: y = x
The last option: In his recursive formula, he should have the term an−1 instead of −4 to get an=an−1−3.