Answer:
12
Step-by-step explanation:
When n teams play each other once, the total number of games is n(n-1)/2. Since each team played every other one 3 times, the relationship between number of teams (n) and number of games is ...
3(n(n-1)/2) = 198
n(n-1) = 132 = 12·11 . . . . . . multiply by 2/3 and factor
n = 12 . . . . . . n = -11 is also an extraneous solution to this quadratic equation
12 teams participated in this championship.
7x . h . 2xm
You can put together 6x and x
but since h, and 2xm arent alike terms, you cant combine
Answer:
Step-by-step explanation:
we are given opposite and adjacent
we want to figure out x°
remember that,
where our opp is 5 and adj is 12.5
let 
be x°
so
by using calculator
hence,
our answer is a
Probably D, I’m not sure if this helped but if it did, I’m glad that I helped
