<span>Each team in the softball league plays each of the other teams exactly once. For every game, there is 2 team playing. The order is not important because A vs B is same as B vs A
So you just need to makes a combination of 2 that have a result of 21. If there is t number of teams, the number of matches would be:
tC2 = t!/2!(t-2)! = 21
</span>t! / (t-2)! = 21 *2
(t)(t-1)= 42
t^2 -t -42=0
(t-7)(t+6)
t=7 ; t=-6
Excluding the minus result, you got 7 teams.
Answer:
hifgreeg33ctvtvunu
Step-by-step explanation:
highhb tug 5h6g6g5g5g
Answer:
618000
Step-by-step explanation:
just add
<h3>
Answer: a = -3 and b = 5</h3>
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Work Shown:
Multiply top and bottom by 
to rationalize the denominator
We end up with something in the form 
where a = -3 and b = 5
