Answer:
Step-by-step explanation:
Given that four people are on the team. Members will be chosen randomly to serve as chairperson, treasurer, secretary, or timekeeper
Since one person cannot serve two posts we have total number of ways
= 4(3)(2)(1) = 24
If Noor is chair person and Qu treasurer then remaining 2 can take two posts in 2 different ways
So probability that Noor is selected to be chairperson and Qu is selected to be treasurer
=favourable outcomes/total outcomes
=
Answer:
x=56
Step-by-step explanation:
As ∠FAC and ∠EAD are vertical angles, the measure of their angles must be the same. This means that ∠
Now, we can use the fact that the line EAC would have a measure of 180 degrees.
Due to this, we can add up all of the angle on one side of that line to find x.
We can't find explicit values for and
, since there is only one equation, but two variables.
The best we can do is solve for one variable with respect to the other:
Solve for :
subtract from both sides:
divide both sides by :
Solve for :
subtract from both sides:
divide both sides by :