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disa [49]
3 years ago
12

Amy wants to make an exact replica of a specific area in an image. Which tool Amy will use?

Computers and Technology
1 answer:
ipn [44]3 years ago
4 0

Answer:

Explanation:

.

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He following is a string of ASCII characters whose bit patterns have been converted into hexadecimal for compactness: 4A EF 68 6
almond37 [142]

Answer:

a) Please see below as the answer is self explanatory.

b) odd parity.

Explanation:

As the hexadecimal system, has as its base the decimal 16, which is the 4th power of 2 (base of the binary system), each hexadecimal digit can be expressed of a linear combination of 4 binary digits, as follows:

Hex = b₃*2³ + b₂*2² + b₁*2¹ + b₀*2⁰, where bₙ = 0 or 1.

So, we can convert the hexadecimal bit pattern to binary, as follows:

4A = 01001010

Now, if the leftmost bit is a parity bit, the ASCII code is represented by the 7 rightmost bits:

⇒ ASCII = 1001010 = 74

Repeating the same process for the remaining pairs of hex digits, we have:

EF = 11101111 ⇒ ASCII = 1101111  = 111

68 = 01101000 ⇒ ASCII = 1101000 = 104

20 = 00100000 ⇒ ASCII = 0100000 = 32

C4 = 11000100 ⇒ ASCII = 1000100 = 68

EF = 11101111 ⇒ ASCII = 1101111  = 111

E5 = 11100101 ⇒ ASCII = 1100101 = 101

b) Due to any pair of digits has an odd number of 1s, the parity used is odd parity.

7 0
3 years ago
Assume you are given a boolean variable named isNegative and a 2-dimensional array of ints that has been created and assigned to
Anon25 [30]

Answer:

#include <iostream>

using namespace std;

int main(){

   int rows, cols;

   bool isNegatives;

   cout<<"Rows: ";

   cin>>rows;

   cout<<"Columns: ";

   cin>>cols;

   int a2d[rows][cols];

   for(int i =0;i<rows;i++){

   for(int j =0;j<cols;j++){

       cin>>a2d[i][j];}    }

   int negatives, others = 0;

   for(int i =0;i<rows;i++){

   for(int j =0;j<cols;j++){

       if(a2d[i][j]<0){

           negatives++;}

       else{

           others++;}}    }

   if(negatives>others){

       isNegatives = true;}

   else{

       isNegatives = false;}

   cout<<isNegatives;  

   return 0;

}

Explanation:

For clarity and better understanding of the question, I answered the question from the scratch.

This line declares number of rows and columns

   int rows, cols;

This line declares the Boolean variable

   bool isNegatives;

This line prompts user for rows

   cout<<"Rows: ";

This line gets the number of rows

   cin>>rows;

This line prompts user for columns

   cout<<"Columns: ";

This line gets the number of columns

   cin>>cols;

This line declares the array

   int a2d[rows][cols];

This line gets user input for the array

<em>    for(int i =0;i<rows;i++){</em>

<em>    for(int j =0;j<cols;j++){</em>

<em>        cin>>a2d[i][j];}    }</em>

This line declares and initializes number of negative and others to 0

   int negatives, others = 0;

The following iteration counts the number of negatives and also count the number of non negative (i.e. others)

<em>    for(int i =0;i<rows;i++){</em>

<em>    for(int j =0;j<cols;j++){</em>

<em>        if(a2d[i][j]<0){</em>

<em>            negatives++;}</em>

<em>        else{</em>

<em>            others++;}}    }</em>

This checks of number of negatives is greater than others

   if(negatives>others){

If yes, it assigns true to isNegatives

       isNegatives = true;}

   else{

If otherwise, it assigns false to isNegatives

       isNegatives = false;}

This prints the value of isNegatives

   cout<<isNegatives;  

<em>See attachment</em>

Download cpp
5 0
3 years ago
How many of you got the right answer from this app​
Flura [38]
Actually, a lot, and it’s especially helpful when the answer is expert verified
8 0
3 years ago
sometimes people who have been playing gta for a while are annoying, i was playing gta this weekend and was trying to escape, bu
murzikaleks [220]
Yeah I stopped playing cause of people like that, I’m sorry you had to deal w that op :) I hope you have a nice day
3 0
3 years ago
Read 2 more answers
Write a Racket two-way selection structure that will produce a list '(1 2 3) when the first element of a list named a_lst is ide
ANEK [815]

Answer:

A

Explanation:

3 0
3 years ago
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