307 Answered Questions for the topic discrete mathematics

Discrete Mathematics Discrete Math

03/14/14

Express the following equation, using O ? or T notation

Express the following equation, using Ω Ο or Θ notation|3x^5 -4x^4 +3x^3 +2x^2 +5x +12| ≤ 12|x^5 |
Discrete Mathematics Discrete Math

03/13/14

i dont understand these equations and notation

Given the following equations what is the corresponding Θ(x^? ) notation ((2x-2)(2x+4))/8 ((2x^2-2x+2)(2x+4))/2 ((3x^3+2x^2+4x+2)(2x^2+3x+2))/12
Discrete Mathematics Discrete Math

03/13/14

truth table help

Write the truth table for ~(a ^ b) V (a V b) ?
Discrete Mathematics Discrete Math

03/12/14

need help with de morgans law

Use De Morgan’s law and write the negation to:(a) My son is younger than 18 and he loves golf(b) The sun rise in the east and rises at dawn

03/11/14

binary notation

. Represent the following number in binary notation: a) 64b) 192c) 348d) 2121e) 741
Discrete Mathematics Discrete Math

03/01/14

With an IP address how many times can the bit pattern 101001 appear?

With an IP address how many times can the bit pattern 101001 appear?
Discrete Mathematics Discrete Math

03/01/14

how many random words?????

Using a standard cell phone keypad, how many random words (just letters strung together) can be produced from the PIN 23579?
Discrete Mathematics Discrete Math

03/01/14

total number of combinations..........????

Write the total number of possible combinations of 5 dice being rolled at once?
Discrete Mathematics Discrete Math

03/01/14

give the probability............

Write each as a set and then give the probability, of the following happening?a) From a full pack of picture cards (J,Q,K,A) an ace is dealt?b) From a set of a single die that a 4 is rolled?c) From... more
Discrete Mathematics Discrete Math

02/27/14

Using arrow diagrams If 7 dice are rolled, and explain why must two at least be the same value?

Using arrow diagrams If 7 dice are rolled, and explain why must two at least be the same value?
Discrete Mathematics Discrete Math

02/27/14

how many random words...........

Using a standard cell phone keypad, how many random words (just letters strung together) can be produced from the PIN 23579?
Discrete Mathematics Discrete Math

02/27/14

total number of combinations

Write the total number of possible combinations of 5 dice being rolled at once?
Discrete Mathematics Discrete Math

02/27/14

give the probability

Write each as a set and then give the probability, of the following happening?a) From a full pack of picture cards (J,Q,K,A) an ace is dealt?b) From a set of a single die that a 4 is rolled?c) From... more

02/23/14

verify and explain

Let a = 67, b = 30, and n = 7 Verify and explain that (a-n)≡(mod b)

02/23/14

Using a Caesar cipher.........................

. Using a Caesar cipher decrypt the following message and determine the key used.TPIEWI VIEH QIHint: Find the common letters
Discrete Mathematics Discrete Math Class Homework

02/23/14

Verify the following statements

Verify the following statementsa)128 ≡ 2 (mod 7) b)149 ≡ 5 (mod 9)c)(45-104)≡(3-2)(mod 6)
Discrete Mathematics Discrete Math

02/16/14

true or false?

5.:Let f: X →Y be a function.True or False?A sufficient condition for f to be one-to-one is that for all elements y in Ym there is at most one x in X with f(x)= y.
Discrete Mathematics Discrete Math

02/16/14

For all sets A, B, and C. Assuming each is a subset of a universal set U

For all sets A, B, and C. Assuming each is a subset of a universal set Ua)Is the following true? (A-B)∩ (C-B) = A- (B ∪C) b)Find a counterstatement to (a)
Discrete Mathematics Discrete Math

02/16/14

Let R={3,4,5,6,7,8,9} ,S={1,3,5} and T={ 2,4,6,8}

Let R={3,4,5,6,7,8,9} ,S={1,3,5} and T={ 2,4,6,8}a)R ∩ Sb)R – Tc)S ∪ T
Discrete Mathematics Discrete Variables

02/14/14

Discrete variable 95% confidence intervals

For a discrete variable with values ranging from 0 to 100, what are the 95% confidence intervals if I sample 100 items? If I sample 200 items. Each sample measurement could be in limited... more
Discrete Mathematics Discrete Math

02/05/14

find the formula

For Tower of Hanoi, find the formula for the minimum number of moves for n discs.
Discrete Mathematics Discrete Math

02/03/14

prove the following loop

If the predicate a+b = even is true, the prove the following loop is truewhile (a >= 0 and a <= 100) { a = a + 3; b = b -1;}
Discrete Mathematics Discrete Math

02/03/14

sum of the first n integers

Use the formula for the sum of the first n integers, to evaluate the following:a) 3 + 6 + 9 + 12 + 15 + 18 + …. + 303b) 6 + 7 + 8 + 9 + 10 + 11 + …. + 102
Discrete Mathematics Discrete Math

02/03/14

mathematical induction

Use mathematical induction to show that change of at least 14c can be obtained using 3c and 8c coins. Show at least from 14c to 27c
Discrete Mathematics Discrete Math

01/29/14

Write the following as a ratio of two integers

Write the following as a ratio of two integersa) 0.222222222222b) 3.6666666

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