The number of ways to elect a Chair and a Vice Chair is 156.
<h3><u>Amount calculation</u></h3>
Given that the Board of directories has 13 members, to determine how many ways are there to elect a Chair and a Vice-Chair, the following calculation must be made:
13 x 12 = X
156 = X
As the rule does not affect, because in the two years that have elapsed a different election will be held, the number of ways to elect a Chair and a Vice Chair is 156.
The rational exponent expression of sixth root of f is <span>f to the one sixth power proof A^1/n, is called n-th root of A, for all n differ from zero</span>
