188 Answered Questions for the topic Sets

Sets

01/26/15

for a survey of 80 law students it was found that 20 took probate law...
20 took probate law, 40 took criminal law, and 12 took probate law but not crimimal law. How many of the 80 students took exactly one of these classes?
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Sets

01/26/15

let a,b,c be subsets of a universal set U. find n(b)
Suppose n(U)= 70, n(a)=20, n(c)=22, n(a intercept c)=7, n(b intercept c)=9, a intercept b={ }, and n(a' intercept b' intercept c')=11. Find n(b).
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Sets Math

12/10/14

Math Question for Sets.
Suppose there are 30 students who take a vacation during summer or winter. Of those, 18 take a vacation during summer and 4 take a vacation during summer and winter. How many take a vacation during... more
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Sets

11/26/14

sets problem
there is a class of 50 students,awards are given for math and science.   36 received for either math or science 6 received both awards 2x received for math only x received for... more
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11/25/14

sets word problem
A card is drawn from a deck of 52 playing cards. Find the number of outcomes in which the card is either a queen or a black card.
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11/25/14

Find the intersection of each of the following pairs of sets
c) P = {x : n ∈ N, x = 3n n< 3} Q = {x : x ∈ N x < 7}
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Sets

11/17/14

sets question
two sets P and Q are such that n(P) =7, n(Q)=5 and n(PUQ)=9, then n (PnQ) IS
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11/15/14

Which of the following sets of vectors are linearly independent?
A) [8,1,-6], [-1,-5,-4]B) [9,3,0], [-7,5,0], [-8,6,0]C) [-1,-7],[9,-1]D) [2,4,7],[-9,-2,-3],[7,-2,-4]E) [7,-9], [-2,-3], [-4,-6]F) [-4,-6], [4,6]
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Sets

09/29/14

Sets to solve the problems
Mrs. Bollo's second grade class of thirty students conducted a pet ownership survey. Results of the survey indicate that 8 students own a cat, 15 own a dog, and 5 own both a cat and a dog. How many... more
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Sets

09/04/14

Prove.1. (AnB)\(CnD)=(A\C)n(B\D)
2. (A∩B)\C=(A\C)∩(B\C)
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Sets

08/29/14

A=[-1;3] B=]2;6[ AUB=? How do i do this? help me plz.
   My answer is AUB=[-1;6[ Is it correct?
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Sets Geometry

01/07/14

The mathmatical statement 4 C A means? The "C'' is not an actual C.
The mathematical statement 4 C A means? The c is not a c it means its part of a set or something..
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03/13/13

how do i find the number of elements in this set??
I have this question regarding set theory and probability that i am struggling on: Q: A group of international students take part in a survey on the nationality of their parents.E= English... more
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