716 Answered Questions for the topic discrete math

Discrete Math Math Statistics Probability

7d

Probability &statistics

News reports tell us that the average American is overweight. Many of us have tried to trim down to our weight when we finished high school or college. And, in fact, only 20% of adults say they do... more
Discrete Math Math

30d

How many 6-digit numbers are even or are divisible by 5?

Discrete Math Math Algebra 1 Algebra 2

07/03/22

It's urgent plz

Consider the name as MARIAHOSSAIN and Roll number as 21101164.1.Find the total number of arrangements from the letters of your name taken all at a time without changing the the positions of vowels... more
Discrete Math Math Prealgebra Mathematica

07/02/22

Consider the name as MARIAHOSSAIN and Roll number as 21101164

1.Find the total number of arrangements from the letters of your name taken all at a time without changing the the positions of vowels and consonants.2.find the total number of three digit numbers... more
Discrete Math Math

06/26/22

Using mathematical induction, prove that

n + 4 < n + 9 for for every positive integers
Discrete Math

06/26/22

Discrete structures

If {{a, c, e}, {b, d, f}} is a partition of the set A = {a, b, c, d, e, f}, determine the corresponding equivalence relation R.
Discrete Math

06/23/22

How many 5 string passwords can be formed?

The string can be made up of lowercase letters or digits. Contain at most 2 lowercase letters and no repeated digits.

Find the expansion base 7 of 67 and Compute (37^15 + 27 × 43) mod 6 using modular arithmetic.

Find the expansion base 7 of 67Compute (3715 + 27 × 43) mod 6 using modular arithmetic (without the use of a calculator). Show all your work.

Check whether the following integers are multiplicative inverses of 3 mod 5.

Check whether the following integers are multiplicative inverses of 3 mod 5. a) 6 b) 7

We want to find 8 in the following list: 2, 6, 5, 1, 11, 18, 8, 0.

We want to find 8 in the following list: 2, 6, 5, 1, 11, 18, 8, 0.a) Can we use Binary Search Algorithm? Justify your answer. b) If a Linear Search Algorithm is used to find 8, how many comparison... more

Look at the following algorithm:

Look at the following algorithm:Input: n: real numberOutput: undisclosed procedure x(n) t := 1 For i := 3 to n t := t + n End-for Return(t) What is returned by the algorithm on the input 7, i.e. n... more

Determine which statements are false or true. Justify your answer.

Determine which statements are false or true. Justify your answer.(a) {0, 1} ∈ {0, {0}, {1}, 1} (b) {a, b, c} ⊂ {a, {a, b}, c, {a, c}, {{{a, b, c}}}} (c) ∅ ⊆ {a, b, c} (d) {1} ∈ {{1}, 0, {{1}}}

Let f(x) = 4x - 7 and g(x) = 6 - 2x where f(x) : R → R, and g(x) : R → R. Find (f ◦ g)(x).

Let f(x) = 4x - 7 and g(x) = 6 - 2x where f(x) : R → R, and g(x) : R → R. Find (f ◦ g)(x).

Determine whether the function f(x) = 8 − 2x^2 , where f(x) : R → R, is bijective and explain why.

Determine whether the function f(x) = 8 − 2x2 , where f(x) : R → R, is bijective and explain why.

For the sets A = {a, b, c, d, e}, B = {a, c, e, g, n}, C = {b, c, d, e, n, w} and the universal set is U = {a, b, c, d, e, g, n, w}. Find

For the sets A = {a, b, c, d, e}, B = {a, c, e, g, n}, C = {b, c, d, e, n, w} and the universal set is U = {a, b, c, d, e, g, n, w}. Find (a) |A ∩ B ∩ C| (b) C¯(c) A¯∪(B − C)

Rewrite the statement ¬∃x (∀y∃tS(x, y, t) ∧ ∃tR(x, t)) so that negations appear only within predicates.

Rewrite the statement ¬∃x (∀y∃tS(x, y, t) ∧ ∃tR(x, t)) so that negations appear only within predicates.
Discrete Math Discrete Mathematics

05/16/22

Set of all factors of 15 in Set builder method

Set of all factors of 15 in Set builder method
Discrete Math Discrete Mathematics

05/12/22

Write the following sets using roster method and set builder notation.

A.     Write the following sets using roster method and set builder notation.a.        Set of all factors of 15b.       Set of all solution of the equation 8x=0c.        Set of all integer’s... more
Discrete Math Discrete Mathematics

05/12/22

Discrete Mathematics

A.   Write E if the following pairs of sets are equal and NE if not.a.   W = {a, b, a, c}         Q = {a, b, c}b.   Z = {-3, 4}             E = {4, 1}c.  K = { x|x is an integer and x<0}     U... more
Discrete Math Discrete Mathematics

05/12/22

Discrete Mathematics

A.     Consider the following set: E = {x | x is an integer less than 12}Write S if the following sets are subset of E and write such relation using the subset notation. Write D if the following... more

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