Tutors Answer Your Questions about sets-and-operations (FREE)
Question 221931: How do I solve this?
In a survey of 100 college students, 35 were registered in college algebra, 52 were registered in history 1, and 18 were registered in both courses. How many students were registered in college algebra or history 1. And how many were not registered in either course. thank you
Click here to see answer by jim_thompson5910(35256)  |
Question 225955: Set D={Lower cost, Educational, Less time to see the sights, Can visit relatives along the way}
Set F= {Higher cost, Educational, More time to see the sights, Cannot visit relatives along the way}
Set U={Higher cost, Educational, More time to see the sights, Cannot visit relatives along the way, Lower cost, Less time to see the sights, Can visit relatives along the way}
Find the set of elements common to both sets:
F' and D'
The book has the answer being an empty set and I am not sure why. Can you explain why to me please?
Click here to see answer by jim_thompson5910(35256) |
Question 248884: Given: set A={5,6,10,12} and Set B={1,2,3,4,5,6,7,8}
a.) Find: A U B
b.) Find: A (upside down U) B which will be notated as A @ B for this question.
Click here to see answer by chosenpoint(26)  |
Question 258296: 3. The cardinal number of the set {cat, dog, horse, fish, lizard, meercat, rhinoceros, elephant, giraffe, platypus, hippopotamus, skunk} is _________.
The answer would be equivalent right?
Click here to see answer by jim_thompson5910(35256) |
Question 259063: The Wildlife Federation surveyed 140 San Diego residents. The results are as follows:
22 had a membership to the Birch Aquarium
26 had a membership to the San Diego Zoo
15 had both
Construct a Venn diagram
Answer the following questions:
i. How many had only a zoo membership?
ii. How many had only an aquarium membership?
iii. How many belonged to either one or the other or both?
iv. How many belonged to neither?
Click here to see answer by drk(1908) |
Question 259063: The Wildlife Federation surveyed 140 San Diego residents. The results are as follows:
22 had a membership to the Birch Aquarium
26 had a membership to the San Diego Zoo
15 had both
Construct a Venn diagram
Answer the following questions:
i. How many had only a zoo membership?
ii. How many had only an aquarium membership?
iii. How many belonged to either one or the other or both?
iv. How many belonged to neither?
Click here to see answer by richwmiller(17219)  |
Question 258297: Given the following sets, select the statement below that is true.
A = {l, a, t, e, r}, B = {l, a, t, e}, C = {t, a, l, e}, D = {e, a, t}
(Points :3)
B ⊂ C and C ⊆ A
C ⊆ B and D ⊂ B
D ⊂ A and A ⊂ D
B ⊂ A and C ⊂ D
D ⊆ A and A ⊂ C
Click here to see answer by ismaelp13(1) |
Question 263471: Can someone please help me!!! I do not understand the truth tables at all and I believe that is what I have to do with each one of these statements.
8. Determine which, if any, of the three statements are equivalent. Give a reason for your conclusion. Show complete work
I) If the dog licks her nose, then the dog is not happy.
II) If the dog licks her nose, then the dog is happy.
III) If the dog is not happy, then the dog does not lick her nose.
a. I, II, and III are equivalent
b. I and II are equivalent
c. II and III are equivalent
d. I and III are equivalent
e. None are equivalent
Click here to see answer by JBarnum(2146)  |
Question 291908: Given the sets U ={0,1,2,3,4,5,...} A= {1,2,3,4,...}, B= {4,8,12,16,...},
C= {2,4,6,8,...}
Determine
B U C
Click here to see answer by richwmiller(17219) |
Question 292920: An electronic store surveyed every 14th customer who came into the store for a week.
Of the 400 people who responded,
194 watched movies on vhs
260 people watched movies on dvd
62 people watched both on vhs tapes and dvds
Create a venn diagram to reflect the above data
i. of those surveyed how many watched only vhs tapes?
ii. of those surveyed how many watched only dvd's?
iii. of those surveyed, how many watched vhs tapes or dvds but not both?
iv. of those surveyed how many watched vhs tapes or dvd's or both?
Click here to see answer by richwmiller(17219) |
Question 294067: How much is Albuguerque? Each letter of the alphabet had a value from 1 to 26. Each value is a whole number and no two letters have the same value. A more methodical approach based in adding and subtracting names will work. There is no q so the only way to solve for q is to find all the other letters. HERE, EACH LETTER OF THE CITY/STATE ADD UP TO WHAT IT EQUALS:
ALASKA=73 ARIZONA=73 ATLANTA=81 BOSTON=56 BUFFALO=91 CHICAGO=81 COLUMBIA=109 DENVER=72 DETROIT=93 EL PASO=70 HAWAII=106 HOUSTON=56 IDAHO=64 IOWA=64 JAMESTOWN=102 KANSAS=56 KENTUCKY=83 LOUISIANA=111 LOUISVILLE=157 MAINE=65 MICHIGAN=122 MOTEREY=91 MONTGOMERY=134 NANTUCKET=78 NASHVILLE=129 NEVADA=68 NEW ORLEANS=105 NEW YORK=91 NOME=36
OHIO=47 OREGON=61 RENO=33 SACRAMENTO=99 SALEM=64 SAN ANTONIO=88 SAVANNAH=85 TAMPA=77 TEXAS=49 TOLEDO=61 TULSA=58 UTAH=44 VENICE=69 WICHITA=113
Click here to see answer by richwmiller(17219) |
Question 320034: Given the following sets, select the statement below that is NOT true.
A = {b, l, a, z, e, r}, B = {b, a, l, e}, C = {a, b, l, e}, D = {l, a, b}, E = {a, b, l}
E ⊂ C
E ⊆ B
D ⊆ B
B ⊂ C
C ⊆ A
Click here to see answer by Edwin McCravy(20054)  |
Question 320024: Given these sets:
A = {1, 2, 3, 4}
B = {3, 4, 5, 6, 7}
C = {3, 5, 7, 9}
List the elements of this set
A ∩ (B U C)
Note: The "U" in between the B and C is not really a U, but suppose to be a symbol like an uppercase U.
Click here to see answer by Edwin McCravy(20054) |
Question 353747: An electronics store surveyed every 7th customer who came into the store for a week.
Of the 350 people who responded,
144 people watched movies on VHS tapes.
239 people watched movies on DVDs.
54 people watched movies both on VHS tapes and DVDs.
Create a Venn diagram to reflect the above data, label your diagram clearly and submit to the W1: Assignment 4 Dropbox. Use your diagram to answer the following questions here.
i. Of those surveyed, how many watched only VHS tapes?
ii. Of those surveyed, how many watched only DVDs?
iii. Of those surveyed, how many watched VHS tapes or DVDs, but not both?
iv. Of those surveyed, how many watched VHS tapes or DVDs, or both?
Click here to see answer by rfer(16322) |
Question 366849: When you think about the sums of their proper factors greater than 1, the numbers 48 and 75 have a special relationship. What is this relationship? show that the numbers 140 and 195 have this same special relationship.
Click here to see answer by stanbon(75887) |
Question 376061: The cardinality The cardinality of the set A, n(A) = 50 and the cardinality of set B, n(B) = 50. These sets have 3 elements in common.
a) What is the cardinality of the set: AB?
b) What is the cardinality of the set: AB?
c) What is the cardinality of the set: [AB]A
d) What is the cardinality of the Cartesian product: A X B
Click here to see answer by robertb(5830)  |
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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, 901..945, 946..990, 991..1035
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