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Question 3251: Denote each set by set-builder notation, using x as the variable.
{1,3,5,...,75}
Does anyone know how to figure this out. I don't understand. Please, help.
Click here to see answer by khwang(438)

Question 8346: What is ? How you you solve this?
Click here to see answer by bonster(299)

Question 23509: How many different arrangements of sevven letters can be made using the letters in the name "ULYSSES"?
Click here to see answer by longjonsilver(2297)

Question 35555: I need to know what are the odd square numbers and perfect cubes that are less than 50.
Thank You!
Click here to see answer by Earlsdon(6294)

Question 37094: solve:
x - y = 0
y = x^2
i think you put the value for y into the first equation, but i dont know where to go from there.
Click here to see answer by checkley71(8403)

Question 41527: Find the prime factorization of 93.
Click here to see answer by stanbon(75887)

Question 44247: A={1,2,3,4,5,6}
B={6,7,8,9,10}
U={1,2,3,4,5,6,7,8,9,10}
find:
A', B' and AUB
Click here to see answer by fractalier(6550)

Question 51320: Find values for m and b in the following system so that the solution to te system is ( -3, 4).
5x + 7y = b
mx + y = 22
Click here to see answer by Earlsdon(6294)

Question 75453: Given set A= (1,2,3) and set B= (2,3,4)
A. A and B are equal sets
B. A and B are equivalent sets
C. A and B are both equal and equivalent.
D. No of the above.
Click here to see answer by psbhowmick(878)

Question 84874: a set has 9 elements
a) how many subsets does it have?
b) how many proper subsets does it have?
so confused please help
Click here to see answer by rapaljer(4671)

Question 87539: five computers are to be wired in a linear network. How many permutations of the five computers are possible?
Click here to see answer by stanbon(75887)

Question 102434: The first five figure skating judges gave Dora scores of 7.2, 7.3, 7.7, 7.8, and 7.5. What score does she need from the sixth judge to score a 7.55 average?

Click here to see answer by doukungfoo(195)

Question 102875: Find A intersection B, given A = {0, 1, 2, 4} and B = {0, 1, 3, 4}.
Click here to see answer by jim_thompson5910(35256)

Question 103599: I've been on this problem for almost 2 hours and I'm getting more and more frustrated.
Solve each of the following systems by substitution
28.
4x - 12y = 5
-x + 3y = -1
This is one of the answers I got, but none of my answers are right when I try to check them
y = -x - (-1)/3
y = -x +1/3
4x - 12(-x +1/3) = 5
4x + 12x (-12)/3 = 5
16x - 12x / 3 = 5
4x/ 3= 5
4x = 5(3)
x = 15/4
x = 3.75
What am I missing??? Please advise...
Thank you Rev. B

Click here to see answer by edjones(8007)

Question 123079: n((A U C) - (B U C))=

Click here to see answer by rapaljer(4671)

Question 129544: Determine whether the set is well defined.
The set of the four states in the US having the largest areas.
Click here to see answer by stanbon(75887)

Question 143080: Please help me solve this problem I have sent 3 times and can't get an answere back. Thank you-Karen
4. (7 pts)
Given U = {All letters of the alphabet} A = {b, c, d} and B = {c, e, f, g}
List the elements of set
(a) A U B (b) A ∩ B (c) A′ ∩ B′ (d) A′ U B′ (e) A U B′
(f) (A U B′ ) ∩ B (g) (A U B) ∩ (A U B′)

Click here to see answer by jim_thompson5910(35256)

Question 143096: Could you ples help me solve these?
4. (7 pts) Given U = {All letters of the alphabet} A = {b, c, d} and B = {c, e, f, g}
List the elements of set
A U B′
(A U B′ ) ∩ B
(A U B) ∩ (A U B′)

Click here to see answer by jim_thompson5910(35256)

Question 143195: Could you please help me solve this px?
3. (2 pts) For sets A and B, determine whether A = B, A is a subset of B, of B is a subset of A

A = { x| x є N and 13 < x < 18}
B = { 12, 13, 14, 15, 16, 17, 18}

Click here to see answer by jim_thompson5910(35256)

Question 143194: Could you help me solve this px
2. (2 pts) Express the following in set builder notation:
Z = {2, 3, 4, 5, 6, 7, 8, 9, 10}

Click here to see answer by jim_thompson5910(35256)

Question 143321: Could you please help me solve this Px
10. (4 pts) A survey of a group of people produced the following results: there were 25 people with brown eyes and 15 people with blonde hair. If 10 people had both brown eyes and blonde hair and 23 people had neither, how many people were interviewed?
Click here to see answer by stanbon(75887)

Question 145215: Help! Please-Thanks
13. (4 pts) At an annual flower show, 6 different entries are to be arranged in a row.
a) How many different arrangements of the entries are possible? 6!
b) If the owners of the 1st, 2nd, and 3rd place entries will be awarded prizes of $100, $50, and $25 respectively, how many ways can the prizes be awarded? 6 items taken 3 at a time 6*5*4 = 120 ???
Click here to see answer by josmiceli(19441)

Question 147196: This is actually supposed to be a formula but what are the formula's for the distance formula on a (xy) Plane ( 2D, and the Midpoint formula on a (x,y) plane, (2d) . Is it the same formula on a number line?
Click here to see answer by jim_thompson5910(35256)

Question 147869: can you please help me to understand this problem.
2. (4 points) Write down all possible subsets of {a, b, c, d}

Click here to see answer by stanbon(75887)

Question 147874: Im having a hard tiume understanding how to list these sets

4. (7 pts) Given U = {All letters of the alphabet} A = {b, c, d} and B = {c, e, f, g}
List the elements of set
(a) A U B (b) A ∩ B (c) A′ ∩ B′ (d) A′ U B′ (e) A U B′
(f) (A U B′ ) ∩ B (g) (A U B) ∩ (A U B′)

Click here to see answer by stanbon(75887)

Question 147859: Express the following in set-builder notation: M = {1, 2, 3, 4, 5}
Click here to see answer by jim_thompson5910(35256)

Question 147883: Im in need for some help please.
6. (2 points) State whether set A and B are equal, equivalent, both, or neither. A = {9, 8, 10} B = {8, 9, 10}

Click here to see answer by nerdybill(7384)

Question 147949: Im having diffuculties figuring this out.
(10 pts) In a survey of 75 resorts, it was reported that:
34 provided refrigerators in the guest rooms
30 provided laundry services
37 provided business centers
15 provided refrigerators in the guest rooms and laundry services
17 provided refrigerators in the guest rooms and business centers
19 provided laundry services and business centers
7 provided all three features.
Construct a Venn Diagram (You may do the Venn diagram by hand and scan it in, if you like.) and use it to answer the following questions:
(a) How many of the resorts provided only refrigerators in the guest rooms?
(b) How many of the resorts provided exactly one of the features?
(c) How many of the resorts provided at least one of the features?
(d) How many of the resorts provided exactly two of the features?
(e) How many of the resorts provided none of the features?
If you want to make your Venn diagram on the computer, here are some symbols/shapes you might need:
Copy and paste. Resize as necessary!

Click here to see answer by scott8148(6628)

Question 148024: I need a little help solving this.

2. (2 pts) Express the following in set builder notation:
Z = {2, 3, 4, 5, 6, 7, 8, 9, 10}

Click here to see answer by jim_thompson5910(35256)

Question 148038: Please help me with this problem. I do not understand what they are asking. This is a homework assignment. The question reads: Let U={1,2,3,4..20},A={1,2,3,4,5,}, B={6,7,8,9}, C={1,3,5,7,...,19}and D={2,4,6,8,...20}. Use the roster method to write each of the following sets.
#10 B'
Click here to see answer by jim_thompson5910(35256)

Question 148032: Can you please help me?

5. (3 pts) Given U = {18. 19. 20, 21, 22, 23, 24, 25, 26, 27, 28, 29}, A = {21, 23, 25, 27, 29}, and
B = {26, 27, 28, 29}. Find A′ U B′. HINT: Do not skip to the answer. List A′ and B′, then find their Union.
6. (3 pts) Given U = {l, m, n, o, p, q, r, s, t, u, v, w}, A = {l, m, n, o, p, q}, B = {n, o, r, s, v, w}, and
C = {l, m, p, q, r, t}, find (A′ U C′) ∩ B′.
HINT: Do not skip to the answer. List A′ and C′, then find their Union.
Then find B′. Last find the intersection of (A′ U C′) and B′.

7. (3 pts) Set K contains 30 elements, set J contains 46 elements, and 11 elements are common to both sets. Find n ( K U J).

Click here to see answer by oscargut(2103)

Question 148102: I'm just learning how to do these and need a little help please?
pts) Given A = {1, 2, 3}, B = {3, 4, 5, 6,}, and C = {3, 5, 7}. Evaluate each set
a) A ∩ B
b) A ∩ C
c) A U C
d) B U C
e) (A U B) ∩ C
f) A U (B U C)
g) (A ∩ B) ∩ C
h) (A ∩ B) U C

Click here to see answer by nerdybill(7384)

Question 148101: I'm just learning how to do these and need a little help please?
pts) Given A = {1, 2, 3}, B = {3, 4, 5, 6,}, and C = {3, 5, 7}. Evaluate each set
a) A ∩ B
b) A ∩ C
c) A U C
d) B U C
e) (A U B) ∩ C
f) A U (B U C)
g) (A ∩ B) ∩ C
h) (A ∩ B) U C

Click here to see answer by vleith(2983)

Question 149452: how do you find three consecutive numbers who's product is 15, 600?
Click here to see answer by Alan3354(69443)

Question 149452: how do you find three consecutive numbers who's product is 15, 600?
Click here to see answer by checkley77(12844)

Question 158150: Calculate a patient's intake for 4 hours if the patient receives-50 ml/hr by intravenous; 1 8 ounce glass of water; 2 6 ounce cups of coffee. How many milliters did the patient receive? Thanks.....Please show your work. Lean
Click here to see answer by nerdybill(7384)

Question 160249: Suppose a die is tossed. Let A denote the outcome is a even number; let B denote the outcome is divisible by 3. How mnay elements are in A intrsect B? How many elements are in A U B?
Click here to see answer by oscargut(2103)

Question 169927: A rectangular piece of aluminum is to be used to form a box. A 5cm square is to be used from each corner and the ends are to be folded up to form an open box whose volume will be 10500cm ^3. If the original piece of aluminum is twice as long as it is wide, what were the dimensions of the original rectangle?
Click here to see answer by nerdybill(7384)

Question 170169: Together, Carmen Molini and Jay McCarroll can prepare a catered dinner in 20 hours. Working alone, Carmen can do the job 5 hours faster than Jay. Find the time that each person takes to prepare a catered dinner. Round to the nearest tenth
Click here to see answer by scott8148(6628)

Question 177654: An amount of money is invested at 4% annual simple interest, and twice that amount is invested at 5%. The total annual interest is $112. How much is invested at each rate?
Click here to see answer by MathTherapy(10552)

Question 180933: How many two-digit numbers can formed if the first digit cannot be 0 and no digit can be repeated?
Click here to see answer by stanbon(75887)

Question 180932: Suppose B is a proper set subset to C. If n(C)= 8, what is the maximum number of elements?
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Question 180930: How many one to one correspondences are there between two sets with 5 elements each?
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Question 180929: How many one to one correspondences are there between the sets {x,y,z,u,v} and {1,2,3,4,5} if in each correspondence x must correspond to 5?
Click here to see answer by stanbon(75887)

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