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All about discrete mathematics
Let X be the set {x ∈ Z | x + 3 is a multiple of 7 }.
Let Y be the set {y ∈ Z | y – 4 is a multiple of 7 }.
Prove that X = Y.
by DenniejoaQuin on November 25th, 2011
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one answer
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in Discrete mathematics
How many bushels of corn does a 5 gallon pail hold?
by Answerbag Staff on May 28th, 2010
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2 answers
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in Discrete mathematics
Prove that there is no positive integer solutions for 4a^3 + 2b^3 = c^3
by DenniejoaQuin on November 25th, 2011
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one answer
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in Discrete mathematics
One yard of mulch equals how many cubic feet?
by Answerbag Staff on May 5th, 2010
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2 answers
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in Discrete mathematics
Can someone explain the following to me? I have a test on this stuff tonight. I've memorized it but would like to understand it.
by Nancy is really struggling right now... on July 26th, 2011
| 2 people like this
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4 answers
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in Discrete mathematics
for the mathematicians out there:
(2n+m)/3=integer (n,m integers)
does it follow that (2m+n)/3=integer ?
by Sympho de Proggy on July 8th, 2011
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6 answers
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in Discrete mathematics
find the missing number 1,5,13,25,? and explain me how did u found?
by wannashare on July 1st, 2011
| 2 people like this
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3 answers
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in Discrete mathematics
I need help putting a formula into a TI-83 Calculator. Here is the formula 60(1 + .04/.04)^20-1.When entering,I don't get correct answer.
by roses798 on June 7th, 2011
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one answer
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in Discrete mathematics
the balls are marked with numbers 1 through 75 I have numbers 46 through 60 what are the odds in favor of it landing on one of my numbers
by joyced1 on June 5th, 2011
| 1 person likes this
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5 answers
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in General Discrete mathematics
Is it possible to create an algorithm that can generate prime numbers?
by þαИŦHΣISŦ67 on May 23rd, 2011
| 1 person likes this
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4 answers
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in General Discrete mathematics
Is 1967 a prime number?
by As confused as the guy next door. on May 22nd, 2011
| 3 people like this
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8 answers
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in Discrete mathematics
Why does the factorial notation (!) resemble an exclamation point?
by Faryalo on May 9th, 2011
| 2 people like this
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4 answers
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in General Discrete mathematics
A function is like a marriage, and to have a function you have to have a relation, but if it's an arranged marriage, with no relation, than
by scallywag331 on March 16th, 2011
| 1 person likes this
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7 answers
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in General Discrete mathematics
Two operations, each distributes over the other, so a$(b#c)=(a$b)#(a$c) and a#(b$c)=(a#b)$(a#c). Must the number of elements be 2?
by purplecows on March 12th, 2011
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4 answers
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in Discrete mathematics
Which would require more heat, melting 500 g of 0 degree celsius ice or turning 500 g of 100 degree celsius water into steam?
by amenra187 on February 2nd, 2011
| 1 person likes this
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2 answers
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in Combinatorics
If both 7+7=14 and 7x7=14 as it is in the case of 2+2and 2x2 is equal to each other i.e. 4 then what should 7/2 be?
by prof. mes solzhenitsy on January 12th, 2011
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2 answers
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in Discrete mathematics
In a descrete affine fourior transform, the transform is the same length as the initial data set...
by Ombliss22 on January 8th, 2011
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2 answers
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in General Discrete mathematics
A glass jar full to the top with liquid weighs exactly 10 pounds.
by One mans opinion on January 5th, 2011
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3 answers
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in General Discrete mathematics
x+y=1 x-y=-5 solve this equations and show the graphing point where they meet
by ladysuzette on October 20th, 2010
| 1 person likes this
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one answer
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in Combinatorics
Prove that if x is rational and x cannot equal zero, then "1/x" is rational?
by sathees on October 1st, 2010
| 1 person likes this
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3 answers
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in Discrete mathematics
xis a maxizer of f on D if and only if x is also a max of the composition qof on D.
Is Theorem valid if q only required to be nondecreasing
by hosdel on September 4th, 2010
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no answers
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in General Discrete mathematics
What is the most efficient method to find out if a large number is prime?
by WarHorseLeBron on September 3rd, 2010
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7 answers
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in Discrete mathematics
2{3x + 4[2x – (4 – x) – 3(4x – 3y)]} Somebody can solve this one and how to get the answer.
Thanks
by ferdieavilla on July 16th, 2010
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2 answers
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in Combinatorics
proof that between any two rational numbers there is an irrational number
by Jenn95 on June 22nd, 2010
| 1 person likes this
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one answer
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in General Discrete mathematics
A restaurant has 1 item on the menu Monday, 2 items Tuesday 3 items Wednesday, so forth. How many combos of items can you buy in a week?
by GeorgeGee left Answerbag (What's this?) on June 3rd, 2010
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one answer
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in Combinatorics
How many bushels of corn does a 5 gallon pail hold?
by Answerbag Staff on May 28th, 2010
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2 answers
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in Discrete mathematics
One yard of mulch equals how many cubic feet?
by Answerbag Staff on May 5th, 2010
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2 answers
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in Discrete mathematics
Each statement is true:
If A is not the highest paid, then B is.
If B is not the lowest paid, then C has the highest salary.
by kudoushinichi on May 2nd, 2010
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3 answers
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in General Discrete mathematics
Distance of a three dimensional point (x; y; z) to the origin is given by
root(x^2 + y^2 + z^2)
look description ..
by goerge1973 on April 20th, 2010
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no answers
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in General Discrete mathematics
Let X = {1; 2; 3; 4}. For each of the items below, give an example of a relation R
from X to X, with the required properties.
by goerge1973 on April 20th, 2010
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no answers
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in General Discrete mathematics
Consider relation R on the set of all people: xRy if x is a direct
descendent of y. Is R reflexive? Symmetric? Anti-symmetric? Transitive?
by goerge1973 on April 20th, 2010
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one answer
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in General Discrete mathematics
We shuffle a deck of 10 cards.We then remove three cards,from the deck. What is the probability that we select three cards in sorted order?
by maxdaytona on April 18th, 2010
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no answers
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in General Discrete mathematics
Tests with 5 questions and 4 choices per question. If he guesses at each, whats probability he gets three or fewer questions right.
by Sean3453 on March 3rd, 2010
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no answers
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in General Discrete mathematics
5 total ?'s with 4 answr for each ?, one for each question.How many ways to fill out answr sheet so 4 answers correct and one is incorrect.
by Sean3453 on March 3rd, 2010
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one answer
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in General Discrete mathematics
5 total questions with 4 answers for each questions, one answer for each question. How many ways can the student fill out the answer sheet?
by Sean3453 on March 3rd, 2010
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no answers
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in General Discrete mathematics
N elements in a stack system,we know the order each element goes in,how many combinations can there be when all elements come out? In fact I've known the answer is 2n!/(n+1)n!^2,but why?
by Anonymous on November 29th, 2009
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no answers
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in Combinatorics
A diagram shows two dimentions, the container dimensions are, 5cm 20 cm and 12cm
the freezer draw has dimentions,0.2 0.4 and 0.5
what is the maximum number of containers that will fit into the draw?
could you please show me how to work it out, (2009-1
by sweetshazza on November 24th, 2009
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one answer
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in General Discrete mathematics
Relation R1 is defined below: R1 = {(p,q) | p-q is even}; R1 on set M = {1,2,3,4}; Ordering of M: 1,2,3,4 b) Hence, determine whether the relation R1 is an equivalence relation or partial order (or neither both). Describe how can the digraph of the
by ram on November 19th, 2009
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one answer
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in General Discrete mathematics
What is discrete? (My guess is that it has something to do with math since I saw this in my geometry class.)
by betony24.rei-chan on November 17th, 2009
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4 answers
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in General Discrete mathematics
Why is it impossible to rotate one corner cube of Rubik's cube, and leave everything else in place, no matter how hard I try?
by Alexander on November 9th, 2009
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2 answers
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in Combinatorics
It is given that a polyhedron has 12 faces and 20 vertices. How many edges are there?
by Alexander on October 28th, 2009
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one answer
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in General Discrete mathematics
Relation R
defined as {(p,q) | p-q is even} R on set M={1,2,3,4}
Ordering of M 1,2,3,4
a) How to write relation of R as a set of ordered pairs.
How to draws the arrow diagram and determine whether R are function or not?
by a_hazman on October 17th, 2009
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no answers
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in General Discrete mathematics
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