52. Which of the following numbering system is used by the computer to display numbers? A. Binary B. Octal C. Decimal D. Hexadecimal​

Answers

Answer 1

Answer:

Computers use Zeroes and ones and this system is called

A. BINARY SYSTEM

hope it helps

have a nice day

Answer 2
A.Binary B. octal is the correct answer

Related Questions



Every Java statement ends with: *

Period
Colon
Double quote
Semicolon

Answers

Answer:

semicolon is the answer

semi colon i did that test

which feature of organisations to manage needs to know about to build and use information system successfully

Answers

The correct answer to this open question is the following.

The feature of organizations to manage needs to know about to build and use information system successful is the following.

Managers of successful organizations should know that companies have hierarchies and different structures in which these companies are organized.

Every company use systems and procedures that could be specialized to the degree the company requires. For that system to function, they have to be perfectly interconnected to all the areas of the company. The goal: to maximize efficiency and accomplish the goals.

Systems and procedures should take into consideration the culture and diversity of the workplace. There are interest groups in every organization that have special characteristics and requirements that have to be taken into consideration to create a much better system.

Good managers must be aware of these elements, and the different roles, goals, management styles, tasks, incentives, and departmental structure of the company so the system can better serve the purpose of the entire organization.

Design traffic lights at an intersection of a city.  North and South (up and down) are going to be a main highway, East and West (right and left) will be a smaller cross street.  There will be no turn signals and no cross walks.  You only need to build/code one set of lights for each street (one set of green, yellow, and red for the highway, and another set for the cross street).  You do not need to build actual traffic lights or an intersection. 

Answers

Answer:

Explanation:

The following code is written in Java. In order to code this efficiently, I created a class for the trafficLights. The class contains the currentLight, and the streetType as variables and contains a constructore, getter and setter methods, and a method to turn to the next light in the sequence. Then I created 4 objects of TrafficLights for the highways and the streets.

class Brainly {

   public static void main(String[] args) {

       TrafficLights highwaySouth = new TrafficLights("Highway", "green");

       TrafficLights highwayNorth = new TrafficLights("Highway", "green");

       TrafficLights streetEast = new TrafficLights("Street", "yellow");

       TrafficLights streetWest = new TrafficLights("Street", "red");

   }

}

class TrafficLights {

   String streetType, currentLight;

   public TrafficLights(String streetType, String currentLight) {

       this.streetType = streetType;

       this.currentLight = currentLight;

   }

   public void nextLight() {

       if (this.currentLight == "green") {

           this.currentLight = "yellow";

       } else if (this.currentLight == "yellow") {

           this.currentLight = "red";

       } else {

           this.currentLight = "green";

       }

   }

   public String getStreetType() {

       return streetType;

   }

   public void setStreetType(String streetType) {

       this.streetType = streetType;

   }

   public String getCurrentLight() {

       return currentLight;

   }

   public void setCurrentLight(String currentLight) {

       this.currentLight = currentLight;

   }

}

With what software tool can you see the applications that are currently runni
your computer?
Application Manager
Task Scheduler
Task Manager
Device Manager
None of the above

Answers

Answer:

Task Manager

Explanation:

On windows, you can press Ctrl + Esc and it will open Task Manager.

You will see all the currently running programs and the amount of resources they are currently using.

bao bì chủ động active packaging và bao bì thông minh intelligent packaging khác biệt như thế nào

Answers

answer:

yes....................

Viết chương trình kiểm tra số nguyên dương N có phải là số nguyên tố không?

Answers

Could you say that in English please? I can try helping

x-1; while x ==1 disp(x) end, then the result a. infinity or b. (1) ​

Answers

Answer:

1 is the answer because ur trying to trick us

Explanation:

For minimization problems, the optimal objective function value to the LP relaxation provides what for the optimal objective function value of the ILP problem?

Answers

Answer:

A lower bound on the optimal integer value.

Explanation:

The question is poorly typed.  The original question requires the optimal solution of the objective function of a minimization problem

I will answer this question base on the above illustration.

When an objective function is to be minimized, it means that the objective function will take the feasible solution with the least value.

The least value are often referred to as the lower bound.

Given that EAX contains FFFF80C0h, which of the following would be true after executing the CWD instruction?

a. AX=FFFFh, DX=80C0h
b. EDX=FFFFFFFFh, EAX=FFFF80C0h
c. DX=FFFFh, AX=80C0h
d. cannot be determined

Answers

Answer:

c. DX=FFFFh, AX=80C0h

Explanation:

CWD instruction set all bits in DX register with same sign as in AX register. The effect is to create a 32 bit sign result. This will have same integer value as of 16 bit.

A python code only runs the except block when _____. Group of answer choices all the statements in the try block are executed an error occurs in the preceding try block the programmer manually calls the except block an error occurs anywhere in the code

Answers

Answer:

Python only running exception block when try block fails

Explanation:

i do cyber security and i was learning this in high school

In Python, try and except statements are used to catch and manage exceptions. Statements that can generate exceptions were placed within the try clause, while statements that handle the exception are put within the except clause.

An exception should be caught by except block, which is used to test code for errors that are specified in the "try" block. The content of the "except" block is executed if such a fault/error appears.In Python, the exception block only runs when an error occurs in the try block.

Therefore, the answer is "try block fails ".

Learn more:

brainly.com/question/19154398

Ten examples of an interpreter

Answers

Answer:

Some popular examples of today's interpreters are:

Interpreter of PythonInterpreter for RubyPerl performerInterpreter for PHPMATLAB UCSD Pascal

Explanation:

An interpreter executes the commands directly in an object code or a machine code, written in a program or a scripting language.

The Interpreter can be referred to as system software that can read and execute the programme instead of interpreting programmes. This interpretation includes high-level source code, pre-compiled programmes and scripts.

It is important to note that the interpreter translates programme by programme line, meaning that one statement is translated on one go. This feature makes it easy for programmers to check any line on debugging but slows the whole programme running time.

After reading all L02 content pages in Lesson 02: Inheritance and Interfaces, you will complete this assignment according to the information below.Do not use the scanner class or any other user input request. You application should be self-contained and run without user input.Assignment ObjectivesPractice on implementing interfaces in JavaFootballPlayer will implement the interface TableMemberOverriding methodswhen FootballPlayer implements TableMember, FootballPlayer will have to write the real Java code for all the interface abstract methodsDeliverablesA zipped Java project according to the How to submit Labs and Assignments guide.O.O. Requirements (these items will be part of your grade)One class, one file. Don't create multiple classes in the same .java fileDon't use static variables and methodsEncapsulation: make sure you protect your class variables and provide access to them through get and set methodsAll the classes are required to have a constructor that receives all the attributes as parameters and update the attributes accordinglyAll the classes are required to have an "empty" constructor that receives no parameters but updates all the attributes as neededFollow Horstmann's Java Language Coding GuidelinesOrganized in packages (MVC - Model - View Controller)Contents

Answers

Solution :

App.java:  

import Controller.Controller;

import Model.Model;

import View.View;  

public class App

{  

public static void main(String[] args) // Main method

{  

Model model = new Model(); // Creates model object.    

View view = new View(); // Creates view object.    

Controller controller = new Controller(view, model); // Creates controller object that accepts view and model objects.    

}

}  

[tex]\text{Controller.java:}[/tex]  

package Controller;  

[tex]\text{impor}t \text{ Model.Model;}[/tex]

import View.View;  

[tex]\text{public class Controller}[/tex]

{

Model model; // Model object    

View view; // View object

public Controller(View v, Model m) // Method that imports both model and view classes as objects.

{

model = m;    

view = v;  

//view.basicDisplay(model.getData()); // basicDisplay method from View class prints FootballPlayer objects as Strings from Model class.  

view.basicDisplay(model.getMembers().get(1).getAttributeName(3));    

view.basicDisplay(model.getMembers().get(1).getAttribute(3));    

view.basicDisplay(model.getMembers().get(1).getAttributeNames());    

view.basicDisplay(model.getMembers().get(1).getAttributes());    

view.basicDisplay("size of names=" + model.getMembers().get(1).getAttributeNames().size());    

view.basicDisplay("size of attributes=" + model.getMembers().get(1).getAttributes().size());

}  

}  

FootballPlayer.java:

package Model;  

import java.util.ArrayList;  

public class FootballPlayer extends Person implements TableMember { // Used "extends" keyword to inherit attributes from superclass Person, while using "implements" to implement methods from TableMember interface.    

private int number; // Creating private attribute for int number.    

private String position; // Creating private attribute for String position.  

public FootballPlayer(String name, int feet, int inches, int weight, String hometown, String highSchool, int number, String position) // Full parameter constructor for FootballPlayer object (using "super" keyword to incorporate attributes from superclass).

{

super(name, feet, inches, weight, hometown, highSchool); // Used super keyword to include attributes from superclass.  

this.number = number; // Value assigned from getNumber method to private number instance variable for FootballPlayer object.  

this.position = position; // Value assigned from getPosition method to private position instance variable for FootballPlayer object.    

}  

public FootballPlayer() // No parameter constructor for FootballPlayer object.

{

this.number = 0; // Default value assigned to private number instance variable under no parameter constructor for FootballPlayer object.    

this.position = "N/A"; // Default value assigned to private position instance variable under no parameter constructor for FootballPlayer object.    

}  

Override

public String getAttribute(int n) // getAttribute method that is implemented from interface.

{

switch (n) { // Switch statement for each attribute from each FootballPlayer object. Including two local attributes, denoted by this. While the others are denoted by "super".

case 0:

return String.valueOf(this.number); // Use of the dot operator allowed me to discover String.valueOf method to output int attributes as a string.

case 1:

return this.position;

case 2:

return super.getName();

case 3:

return super.getHeight().toString();

case 4:

return String.valueOf(super.getWeight());

case 5:

return super.getHometown();

case 6:

return super.getHighSchool();

default:

return ("invalid input parameter");

}

}  

Override

public ArrayList<String> getAttributes() // getAttributes ArrayList method that is implemented from interface.

{

ArrayList<String> getAttributes = new ArrayList<>();    

for(int i = 0; i <= 6; i++){ // For loop to add each attribute to the getAttributes ArrayList from getAttributes method.    

getAttributes.add(getAttribute(i));    

}    

return getAttributes;

}  

Override

public String getAttributeName(int n) // getAttributeName method implemented from interface.

{

switch (n) { // Switch statement for the name of each attribute from each FootballPlayer object.

case 0:

return "number";

case 1:

return "position";

case 2:

return "name";

case 3:

return "height";

case 4:

return "weight";

case 5:

return "hometown";

case 6:

return "highSchool";

default:

return ("invalid input parameter");

}  

}  

What does Falstaff do to protect himself in battle? ​

Answers

bark bark bark bark bark bark bark bark bark bark bark bark bark bark bark bark bark bark bark bark bark bark bark

Saved In order to be used as a primary key, which of these characteristics must an attribute possess with respect to a single instance of the entity? Select all that apply. There must be a maximum of one attribute instance. There must be many instances of the attribute There must be at most one entity instance that each attribute instance describes. There must be at least one instance of the attribute. There must be zero or more instances of the attribute. Question 2 (2 points) True or false: A singular attribute is also known as a unique attribute. True False Question 3 (3 points) Saved Relationship names and types of relationship maxima or minima that each could have are listed below. Match each relationship in the list below to the type of relationship maxima or minima. Instructions: Choose your responses from the drop-down menus below. Response options cannot be used more than once. Minima is One-Zero 1 Person-Assigned Social SecurityNumber 4 Minima is Zero Zero 2 CubicleNumber-Assigned-to- Employee per shift 2 Maxima is One-Many 3. Birthdate-Recorded-for-a Person 1 Maxima is One One 4. Women-Bearing-Children Question 4 (2 points) Saved A ride-sharing app's discount system for riders is configured such that a ride discount is triggered only if at least two RiderlDs book a ride in the same Card at the same time. Which of the following is true of the relationship Ride Discount-is-Applicable?
The relationship minimum is Many-One.
The relationship minimum is Two-One.
The relationship maximum is One-Two.
The relationship minimum is One-Two.

Answers

Answer:

Saved In order to be used as a primary key, which of these characteristics must an attribute possess with respect to a single instance of the entity:

There must be a maximum of one attribute instance.

There must be many instances of the attribute.

There must be at most one entity instance that each attribute instance describes.

There must be at least one instance of the attribute.

A singular attribute is also known as a unique attribute. True

Saved Relationship names and types of relationship maxima or minima that each could have are listed below. True

Explanation:

Functions should contain only the code that performs a single task.
O True
O False

Answers

Answer:

false

Explanation:

function should contain more codes

We will find an video named????
Help us and select once name.
Complete: B__in___t

Answers

Beint cause its cool yea yea
Beinlit (pronounced ben-in-lit)

Design a function int maxDigit (int num) to find and return the greatest digit from the arguments value num.
Also write a function void result() by passing parameters to print the greatest digit.
please tell in java programming​

Answers

Answer:

Below is the required JAVA Code:

Explanation:

public static int largestDigit(int n) {

   if (n < 0) {

       return largestDigit(-1 * n);

   } else if (n == 0) {

       return 0;

   } else {

       int digit = n % 10;

       int maxDigit = largestDigit(n / 10);

       if (digit > maxDigit)

           maxDigit = digit;

       return maxDigit;

   }

}

\color{red}Method\;tested\;in\;a\;complete\;java\;program\;if\;you\;are\;interested.

public class LargestDigitRecursive {

   public static int largestDigit(int n) {

       if (n < 0) {

           return largestDigit(-1 * n);

       } else if (n == 0) {

           return 0;

       } else {

           int digit = n % 10;

           int maxDigit = largestDigit(n / 10);

           if (digit > maxDigit)

               maxDigit = digit;

           return maxDigit;

       }

   }

   public static void main(String[] args) {

       System.out.println(largestDigit(14263203));

       System.out.println(largestDigit(845));

       System.out.println(largestDigit(52649));

       System.out.println(largestDigit(3));

       System.out.println(largestDigit(0));

       System.out.println(largestDigit(-573026));

       System.out.println(largestDigit(-2));

   }

}

OUTPUT:

6

8

9

3

0

7

2

The number of host addresses are available on the network 172.16.128.0 with a subnet mask of 255.255.252.0. Show the calculations.​

Answers

Answer:

adress: 10101100.00010000.1 0000000.00000000

netmask: 11111111.11111111.1 0000000.00000000

Network:   172.16.128.0/17       10101100.00010000.1 0000000.00000000 (Class B)

Explanation:

ex: 10 -> 00001010

200 ->11001000

Explain in details:
(i) Deadlock
(ii) File manager
(iii) Process
(iv) Multiprogramming
(v) Software Classification
(vi) Virtual memory

Answers

Answer and Explanation:

Deadlock occurs when two operating systems on the same computer are hindering each other's execution, getting blocked, waiting for each one to run first. This can happen when a preemption has not occurred, when a mutual exclusion has occurred, or when one of the systems causes the other to not execute.

File manager is software that allows a computer user to create directories and organize files inside and outside of them.

Process is the term used to determine the functioning of computer software. When a software is started, it uses its own programming code to perform a specific activity.

Multiprogramming is the term used for the moment when an operating system allows the user to run more than one software at the same time. For this to happen, the computer needs to have a high processing capacity, to handle the effort of running several software simultaneously.

Software Classification is the process that determines the composition and different aspects that make up a software. In this way, it is possible to understand the usefulness and programming of this software.

Virtual memory is the use of secondary memory for caching. This allows the user to share files more securely and quickly, in addition to alleviating the problems that limited memory presents.

What do application in productivity suites have in common

Answers

Answer:

The function of the suites application is to create presentations and perform numerical calculations.

Explanation:

Why might you use a navigation form instead of tab pages? The navigation form allows for several levels and sublevels to be collected. The navigation form allows for duplicate records of information to be collected. The navigation form requires all entries to be complete before adding to a database. The navigation form requires report headers and footers to make publication neater.

Answers

Answer:

Access includes a Navigation Control that makes it easy to switch between various forms and reports in your database. A navigation form is simply a form that contains a Navigation Control. Navigation forms are a great addition to any desktop database.

Explanation:

yes

Answer:

answer c

Explanation:

correct answer on edge

Heinrich Koch is a second-year college student. Last semester his best friend had his laptop stolen. The laptop was an old computer that he planned to replace soon, but the greatest loss was his data: he had not performed a backup and all his data was lost. Heinrich himself does not perform data backups but knows that he needs to do that on a regular basis. He has decided to use an online backup service that will automatically back up his data whenever it changes. Evaluate and compare reviews of online backup services. Consider iDrive, Carbonite, Acronis True Image, BackBlaze, and others you might find in your research. Recommend a service that you consider the best solution for Heinrich. Discuss your reviews and mention speed, security, and features in your recommendation.

Answers

Answer:

Acronis True Image is the one I would recommend out of these mentioned online backup services.

Explanation:

The evaluations and reviews of each of the online backup services are as follows:

a. iDrive

For this, we have:

Speed = 60% - fair

Security = 100% - excellent

Privacy = 88% - very good

Features = 95% - excellent

Pricing = 85% - Very good

Because of its various features, pricing, and usability, IDrive reviews suggest that it is a very efficient online backup solution. However, there have been complaints concerning its speed and the fact that there are no monthly plans available.

b. Carbonite

For this, we have:

Speed = 60% - fair

Security = 100% - excellent

Privacy = 87% - very good

Pricing = 85% - very good

File backup and restoration = 75% - good

Carbonite reviews reveal that it is simple to use and provides limitless backup for one device. The main drawback is that it has extremely poor backup speeds.

c. Acronis True Image

This is fast, simple and intuitive

It has complete control over the backup updates, including how and when they occur.

It is not expensive.

Acrnonis True image is a powerful backup storage service. It enables data and file backup and restoration from USB drives.

Many reviewers of Acrnonis True image have stated that they have had no issues with its service, that it is worth purchasing, and that there are no concerns.

d. Backblaze

For this, we have:

Speed = 75% - good

Security = 75% - good

Privacy = 70% - decent

Pricing = 100% - excellent

Support = 95% - excellent

Features = 65% - decent

File back-up and restoration = 70% - decent

Backblaze is one of the most popular internet backup services. This storage service, however, does not allow for ustomization.

Recommendation

Acronis True Image is the one I would recommend out of these mentioned online backup services. This is due to the fact that it delivers a large amount of accurate and high-quality data storage. It is quick, simple and intuitive, which is what most people care about. Furthermore, reviewers have stated that this service is quite effective and that there have been very few issues with it. The other services demonstrate that their services have flaws, such as lack of customization and slowness.

Which of the following CALL instructions writes the contents of EAX to standard output as a signed decimal integer?
a. call WriteInteger
b. call WriteDec
c. call WriteHex
d. call WriteInt

Answers

Answer:

d. call WriteInt

Explanation:

Required

Instruction to write to decimal integer

Of the 4 instructions, the call WriteInt instruction is used write to a decimal integer.

This is so, because the WriteInt instruction writes a signed decimal integer to standard output.

This implies that the output will have a sign (positive or negative) and the output will start from a digit other than 0 (i.e. no leading zero)

Create a file named A10.java. Place all your code in this file. Create a publicstatic ArrayList of integers named intList.
Define a public static method addNumber(int i) that adds ito your list.
Exercise 2
Create a publicstatic HashMap of integers,integers namedintMap.
Define a public static method addPair(int i,int j) that adds i,jto your HashMap (make ithe key and j the value).

Answers

Explanation:

The file named as A10.java has been attached to this response. It contains the source code for the exercises. The source code contains comments explaining important parts of the code.

A few things to note;

i. To add an item to an arraylist, the add() method is used. For example to add an integer 7 to the arraylist named intList, simply write;

intList.add(7);

ii. To add an item to a hashmap, the put() method is used. The put method receives two parameters which are the key and value respectively. The key is a form of identifier used to store or retrieve a particular value in a hashmap. To store an integer 8 with a key of 5 in a hashmap named intMap, for example, simply write;

intMap.put(5,8);

A network technician is planning to update the firmware on a router on the network. The technician has downloaded the file from the vendor's website. Before installing the firmware update, which of the following steps should the technician perform to ensure file integrity?

a. Perform antivirus and anti-malware scans of the file.
b. Perform a hash on the file for comparison with the vendor’s hash.
c. Download the file a second time and compare the version numbers.
d. Compare the hash of the file to the previous firmware update.

Answers

Answer: B. Perform a hash on the file for comparison with the vendor’s hash.

Explanation:

Before installing the firmware update, the step that the technician should perform to ensure file integrity is to perform a hash on the file for comparison with the vendor’s hash.

Hashing refers to the algorithm that is used for the calculation of a string value from a file. Hashes are helpful in the identification of a threat on a machine and when a user wants to query the network for the existence of a certain file.

what is the Is option that prints the author of a file​

Answers

Answer:

Print.. is your answer...

multimedia is an effective tool used in different fields such as business and education true or false​

Answers

Answer:

True

Explanation:

Multimedia is used in many fields. It is basically the ability to express something in many different ways. This allows you to more easily demonstrate a product, idea, or even a theory. Since this can be through art, video, presentation, text, live, etc. It allows you to find the best format for the specific product or idea that you are trying to present to a group of viewers. That is why it is an effective tool for various fields since it can just as easily help a company sell a product as well as help a teacher express a mathematical concept.

Think about that the C, B and S parameters of a Cache. Think about what happens to compulsory, capacity, conflict misses, if only each of the following parameter changed (the other two are kept the same)?
(i) C is increased (S, B same)
(ii) S is increased (C, B Same)
(iii) B is increased (C, S Same)

Answers

Answer:

(i) C is increased (S, B same)

Explanation:

Cache are items which are stored in the computer at a hidden place. These are sometimes unwanted and they may hinder the speed and performance of the device. They exist to bridge speed gap.

what is the meaning of photography​

Answers

Answer and Explanation:

the process or art of producing images of objects on sensitized surfaces by the chemical action of light or of other forms of radiant energy, as x-rays, gamma rays, or cosmic rays.

[tex] \sf\underline{ Photography} \:  is \: the \: way \: / \: process \: / \: art \\ \sf \: of \: taking \: beautiful \: pictures \\ \sf \: usually \: of \: amazing \: sceneries \: (it \: can \: be \: of \: other \: \\ \sf things \: as \: well) \: for \: visual \: pleasure. \: The \: attached \: picture \\ \sf \: is \: an \: example \: for \: a \: good \\ \sf\: type \: of \: photography. \: A \: person \: who \: practices \: the \: \\\sf art \: of \: photography \: is \: known \: as \: a \: \underline{ photographer}.[/tex]

An infographic displays the relative frequencies of the 100 most common emojis used in text messaging for each of the last 12 months. Which of the following conclusions cannot be drawn from such a representation of emoji usage?
a. You can determine the growth or decline in popularity of a particular emoji.
b. You can determine what percentage of text messages contains a particular emoji.
c. You can determine how long the most popular emoji has held the #1 position.
d. You can determine the average age of emoji users based on emoji use.

Answers

Answer:

d. you can determine the average age of emoji users based on emoji use.

Explanation:

The infographic displays 100 most common emoji used in text messaging. This information can be used to determine percentages of text message which contains particular emoji. This details can not determine the age of emoji user based in emoji use.

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definition of expectorant Nombra cada uno de los siguientes hidrocarburos de acuerdo a las reglas de la IUPAC a=v2/rSolve the formula for r. Its due in 20 minsWill mark brainliest 11 Roger has m toy cars. Don has twice as many cars as Roger. Larry has five more cars than Roger. Write down an expression, in terms of m, to complete each statement. Don has cars H Larry has cars the slope of line (-1,1) (2,-5)? Tasha needs 75 liters of a 40% solution of alcohol. She has a 20% and a 50% solution available. How many liters of the 20% and how many liters of the 50% solutions should she mix to make the 40% solution? I need help in this () At the end of a snowstorm, Jamal had 18 inches of snow on his lawn. The temperature then increased and the snow began to melt at a constant rate of 2.5 inches per hour. Assuming no more snow was falling, how much snow would Jamal have on his lawn 5 hours after the snow began to melt? How much snow would Jamal have on his lawn after tt hours of snow melting? PLEASE ANSWER THiS QUESTION ASAP A person invests $3,500 in an account that earns 7.5% interest compounded continuously. What is the value of the investment after 4 years? what is aggressive nationalism 0 a.All b.every c.most 1a.lots b.many c.much2 a early b. Earliest c. Morning 3 a.gets b. Makes c. Takes 4 a. Again b.is c. Are5 a. Writes b. Arrives c. Drives 6 a.goes. b. Likes c. Lives 7 a.am b. Are c. Be8 a. House b.job c. Work these are the words the volume of a cylinder is 44cm3. find the volume of another cylinder of the same height and double the base radius Convert the following decimal to fraction 3.04 what affects our utility Solve the equation.(X-5)(x + 7) = 0X=-D(Use a comma 6 separate answers as needed.) can yall pls help me with this, it isn't that hard but i need to know how to solve it in steps and in how to narrow it down, ty. Name five whole numbers that can be expressed as the difference of two perfect squares. Show the math! How to solve and answer