How many different committees can be formed from 8 teachers and 48 students if the committee consists of 3 teachers and 4 stude
2 answers:
Since we don't care about the order in which we select people, we will use the combinatoric approach, rather than permutations.
Since we want to select 3 teachers from a total of 8, this is the notation to select 3 teachers from 8 (objects).
Teachers :
Similarly, students :
Now, since we want both at the same time, we will need to multiply both to yield your final answer:
different ways.
Since we want to select 3 teachers from a total of 8, this is the notation to select 3 teachers from 8 (objects).
Teachers :
Similarly, students :
Now, since we want both at the same time, we will need to multiply both to yield your final answer:
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Answer:
graph A
Step-by-step explanation:
A graphing calculator can plot this function for you.
If you divide numerator and denominator by 25, you get ...
r = 1/(0.4 -sin(θ))
This will have asymptotes at θ = arcsin(0.4). At those values of θ, the value of r will change sign, so the graph cannot be a parabola or ellipse.
The graph of the hyperbola is the appropriate choice.
