Tutors Answer Your Questions about Subset (FREE)
Question 914115: Let U = {4, 5, 6, 7, 8, 9, 10}, A = {4, 5, 6, 7}, B = {4, 5, 8, 9}, and C = {6, 8, 10}
A' ∪ (B ∩ C)
Click here to see answer by ewatrrr(24785)   |
Question 914247: In a survey of 40 musicians, it was found that 20 people played the piano 25 played the guitar and 7 play both instruments. Draw a Venn diagram that represents the situation.
This is what I did. I drew an overlapping Venn diagram with 20 in one circle, 20 in the other and 7 in the middle and 5 outside the circle . I do not remember how I came about with the 5 but my professor said it's wrong. If you add 20+25=45 and It said there are 40 musicians so where did that extra 5 came from?
Please help I am confused
Click here to see answer by richwmiller(17219)  |
Question 935840: You play the following game with your worst enemy, who wishes to keep your score down. A
referee gets to pick a positive integer n. Then your enemy gets to pick n different real numbers.
You get to multiply different pairs of these numbers together, as many different pairs as you
want. You get one point for each pair whose product is nonnegative. So for instance, if n = 3
and your enemy picks 0, −8 and −π, you would pick all possible pairs, {0, −8}, {0, −π} and
{−8, −π}, because all 3 products (0, 0, 8π) are nonnegative. You would get 3 points.
Determine with proof the highest score you can be sure to get against a smart enemy. Your
answer will depend on n.
Click here to see answer by KMST(5328)  |
Question 945966: Let U = {a, b, c, d, e, f} be the universal set and let A and B be subsets of U. Suppose further that
A ∩ B' = {b}, A ∪ B = {a, b, c, d, f}, and A' = {a, e, f}.
Find B.
Click here to see answer by jim_thompson5910(35256) |
Question 945845: Let U = {q, r, s, t, u, v, w, x, y, z}
A = {q, s, u, w, y} B = {q, s, y, z} C = {v, w, x, y, z}
List the elements in the set (A U B)'
Click here to see answer by jim_thompson5910(35256) |
Question 953332: Given the following sets
U = {4, 12, 15, 24, 34, 36, 44, 54, 63, 64}
A = {15, 34, 36, 54, 63, 64}
B = {4, 24, 44, 54}
C = {12, 15, 24, 54}
Give the set Ac ∪ (B ∩ C).
Click here to see answer by Fombitz(32388)  |
Question 971975: Find the subset of a
if a={1,2,3,4,5,6,7,8,9,10,11}
Click here to see answer by Alan3354(69443)  |
|
Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900
|
