Suppose that S is the set of successful students in a classroom, and that F stands for the set of freshmen students in that clas
sroom.
Find n(S ∩ F) given that n(S) = 54, n(F) = 28 and n(S ∪ F) = 58a) 112b) 24c) 82d) 0e) 140
1 answer:
Answer:
b) 24
Step-by-step explanation:
We solve building the Venn's diagram of these sets.
We have that n(S) is the number of succesful students in a classroom.
n(F) is the number of freshmen student in that classroom.
We have that:

In which n(s) are those who are succeful but not freshmen and
are those who are succesful and freshmen.
By the same logic, we also have that:

The union is:

In which



So



So the correct answer is:
b) 24
You might be interested in
170696 is the answer fellow user
Answer:
247/612 bpm
Step-by-step explanation:
247 beats / 612 minutes
beats / minute
beats per minute = bpm
x+3-1.26923+4.12821 so if I am wrong it took me a while to work this out
Answer:
-15?
Step-by-step explanation:
It's hard to tell where the point is exactly
Answer:
96 sq. m
Step-by-step explanation:
If the width is x, the length is x + 4 and since perimeter = 2 * (length + width), we can write:
40 = 2(x + x + 4)
40 = 2(2x + 4)
20 = 2x + 4
16 = 2x
x = 8 so x + 4 = 12, therefore the area is 8 * 12 = 96 square meters.