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# A={ -4 ,-3 ,-2 ,-1 ,0 ,1 ,2 ,3 ,4} R is defined on A as follows: For All (m,n) ?A,m R n ? 5 | (m^2- n^2 )

A={ -4 ,-3 ,-2 ,-1 ,0 ,1 ,2 ,3 ,4} R is defined on A as follows: For All (m,n) ∈A,m R n ⇔ 5 | (m^2- n^2 )

# among the elements 0, 1, 2, 3...,13, 14 of Z(mod 15) please state all x for which x-1 fails to exist

among the elements 0, 1, 2, 3...,13, 14 of Z(mod 15) please state all x for which x^1 fails to exist

# im so lost

Is 2a(5a-30) divisible by 10?

# 8-bit representation question

Using 8-bit representation compute the following sums a) 111 + 45 b) 67 + 67

# 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?

# express this statement using quantifiers

express this statement using quantifiers (there is a building on the campus of some college in the united states in which every room is painted whit

¬p ∨ (r → ¬q)

# mathematical notation question

Write the following is mathematical notation (Hint: ∀ ∃ ) a) All students attend classes b) Some people are criminal

# 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?

# Given the following equations what is the corresponding T(x^? ) notation

Given the following equations what is the corresponding Θ(x^? ) notation a) ((2x-2)(2x+4))/8 b) ((2x^2-2x+2)(2x+4))/2 c) ((3x^3+2x^2+4x+2)(2x^2+3x+2))...

# binary notation

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

# Caesar cipher

. Using a Caesar cipher decrypt the following message and determine the key used. (Hint: KU is repeated , Alphabet wraps around) VJKU SWKB KU QXGT

# Which relationships are true?

Which relationships are true? Hint: the List of symbols from your assigned reading will help. a) Q ⊆ Z b) Q ∪ Z = Q c) Z^+ U Q =Z

# Is 3e(2e+3) divisible by 7????

Is 3e(2e+3) divisible by 7?   i know its simple but im horrible at math

# truth table help

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

# total number of combinations

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

# verify the following statements

Verify the following statements a) 100 ≡ 5 (mod 5) b) 112 ≡ 4 (mod 7) c) 80≡ 8 (mod 2)   im so lost

# elements in a set???

How many elements are in the set { 3 ,4 ,3 ,5 ,2 ,8 ,4 ,5 ,8 ,9} ?

# Caesar cipher

Using a Caesar cipher decrypt the following message and determine the key used. (Hint: Only O or E can be doubled together, Alphabet wraps around) LXX MABL UHHD BL WHGX Hint: Find the common...