In Python, the ‘+’ operator can be used with numbers and with strings. What is a property that number addition has, but string concatenation does not?

The second step in the basic process for evaluating an application package is to Collect evidence in a systematic way from different kinds of stakeholders.

Application evaluations is known to be used in the field of academic career, academic program, etc.

The use of application evaluations is done so as to look into applicants on some key criteria for the academic career and program that they are said to be applying to. Here, one has to assign a committee to handle the application evaluation.

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Answer:

I am writing a JAVA program. Let me know if you want the program in some other programming language.

public class FourthRoot{ //class to calculate fourth root of 81

public static void main(String[] args) { //start of main() function body

   double square_root; //declares to hold the fourth root of 81

   double number=81; // number is assigned the value 81

/* calculates the fourth root of number using sqrt() method twice which means sqrt() of sqrt(). This is equivalent to pow(number,(0.25)) where pow is power function that computes the fourth root by raising the number 81 to the power of 0.25 which is 1/4 */

   square_root=Math.sqrt(Math.sqrt(number));

//displays the fourth root of 81 i.e. 3

     System.out.println("Fourth Root of 81 is "+ square_root); } }

Explanation:

The program is well explained in the comments given along with each statement of the program . Since it was the requirement of the program to user Math.sqrt() method so the fourth root of number= 81 is computed by taking the sqrt() of 81 twice which results in the fourth root of 81 which is 3.

So the first sqrt(81) is 9 and then the sqrt() of the result is taken again to get the fourth root of 81. So sqrt(9) gives 3. So the result of these two computations is stored in square_root variable and the last print statement displays this value of square_root i.e. the fourth root of number=81 which is 3.

Another way to implement the program is to first take sqrt(81) and store the result in a variable i.e. square_root. After this, again take the sqrt() of the result previously computed and display the final result.

public class FourthRoot{

   public static void main(String[] args) {

   double square_root;

   double number=81;

   square_root=Math.sqrt(number);

  System.out.println("Fourth Root of 81 is: "+ Math.sqrt(square_root)); } }

The program along with its output is attached in a screenshot.

Answer:

double ComputeGasVolume(double pressure, double temperature, double moles){

   double volume = moles*GAS_CONST*temperature/pressure;

    return volume;        

}

Explanation:

You may insert this function just before your main function.

Create a function called ComputeGasVolume that takes three parameters, pressure, temperature, and moles

Using the given formula, PV = nRT, calculate the volume (V = nRT/P), and return it.

Answer:

No

Explanation:

The other websites provide very detailed information, when you search the same information that is mentioned at CDC website. The information related to causes and symptoms of brain injuries is similar on both the websites. The reliability of information provided on other websites is questioned. These websites provide a lot of information and it is sometimes time consuming to find the relevant information.

Answer:

a tactile input device

Explanation:

Based on the scenario being described it can be said that the best assistive technology for Bernard would be a tactile input device. Such a device would allow Bernard to physically interact with the print on the chalkboard or overhead screen from the device itself without having to actually get close to the chalkboard or screen. Thus allowing him to view its content from the palm of his hand.

+41.50 = 0 10000100 01001100000000000000000  [single precision]

-72.125 = 1 10000000101 0010000010000000000000000000000000000000000000000000 [double precision]

(I) +41.50 using single precision

Follow the following steps:

(a) Single precision has 32 bits in total and is divided into three groups: sign (has 1 bit), an exponent (has 8 bits) and a mantissa (also called fraction, has 23 bits)

(b) Divide the number (41.50) into its whole and decimal parts:

Whole = 41

Decimal = 0.50

(c) Convert the whole part to binary:

2    |    41

2    |    20 r 1

2    |    10 r 0

2    |    5 r 0

2    |    2 r 1

2    |    1 r 0

     |    0 r 1

Reading upwards gives 41 = 101001₂

(d) Convert the decimal part to binary:

0.50 x 2 = 1.0  = 1 [number in front of decimal]

0.0 x 2 = 0.0 = 0  [number in front of decimal]

Reading downwards gives 0.5 = 10₂

(e) Put the two parts together as follows;

    101001.10₂

(f) Convert the result in (e) to its base 2 scientific notation:

Move the decimal to just before the leftmost bit as follows;

1.0100110

In doing so, we have moved over 5 numbers to the left. Therefore, the exponent is 5. Moving to the left gives a positive exponent while moving to the right gives a negative exponent.

Altogether we have;

1.0100110 x 2⁵

(g) Determine the sign bit of the number and display in binary: Since the number +41.50 is positive, the sign bit is 0.

(h) Determine the exponent bits.

Since this is a single precision conversion, the exponent bias is 127.

To get the exponent we add the exponent value from (e) to the exponent bias and get;

5 + 127 = 132

(i) Convert the exponent to binary:

2    |    132

2    |    66 r 0

2    |    33 r 0

2    |    16 r 1

2    |    8 r 0

2    |    4 r 0

2    |    2 r 0

2    |    1 r 0

     |    0 r 1

Reading upwards gives 132 = 10000100₂

(j) Determine the mantissa bits:

The mantissa is the rest of the number after the decimal of the base 2 scientific notation found in (f) above.

0100110 from 1.0100110 x 2⁵                  [Just remove the leftmost 1 and the decimal point]

(k) Combine the three parts: sign bit (1 bit), exponent bits (8 bits) and mantissa bits (23 bits)

sign bit = 0                [1 bit]

exponent bits = 10000100        [8 bits]

mantissa bits = 0100110        [7 out of 23 bits]

Then fill out the remaining part of the mantissa with zeros to make it 23 bits.

mantissa bits = 01001100000000000000000        

Putting all together we have

0 10000100 01001100000000000000000 as +41.50 in  a IEEE 754 single precision format.

(II) -72.125 using double precision

Follow the following steps:

(a) Double precision has 32 bits in total and is divided into three groups: sign (has 1 bit), an exponent (has 11 bits) and a mantissa (also called fraction, has 52 bits)

(b) Divide the number (72.125) into its whole and decimal parts:

Whole = 72

Decimal = 0.125

(c) Convert the whole part to binary:

2    |    72

2    |    36 r 0

2    |    18 r 0

2    |    9 r 0

2    |    4 r 1

2    |    2 r 0

2    |    1 r 0

     |    0 r 1

Reading upwards gives 72 = 1001000₂

(d) Convert the decimal part to binary:

0.125 x 2 = 0.25  = 0 [number in front of decimal]

0.25 x 2 = 0.50 = 0  [number in front of decimal]

0.50 x 2 = 1.00 = 1  [number in front of decimal]

0.00 x 2 = 0.00 = 0  [number in front of decimal]

Reading downwards gives 0.125 = 0010₂

(e) Put the two parts together as follows;

    1001000.0010₂

(f) Convert the result in (e) to its base 2 scientific notation:

Move the decimal to just before the leftmost bit as follows;

1.0010000010

In doing so, we have moved over 6 numbers to the left. Therefore, the exponent is 6. Moving to the left gives a positive exponent while moving to the right gives a negative exponent.

Altogether we have;

1.0010000010 x 2⁶

(g) Determine the sign bit of the number and display in binary: Since the number -72.125 is negative, the sign bit is 1.

(h) Determine the exponent bits.

Since this is a double precision conversion, the exponent bias is 1023.

To get the exponent we add the exponent value from (e) to the exponent bias and get;

6 + 1023 = 1029

(i) Convert the exponent to binary:

2    |    1029

2    |    514 r 1

2    |    257 r 0

2    |    128 r 1

2    |    64 r 0

2    |    32 r 0

2    |    16 r 0

2    |    8 r 0

2    |    4 r 0

2    |    2 r 0

2    |    1 r 0

     |    0 r 1

Reading upwards gives 1029 = 10000000101₂

(j) Determine the mantissa bits:

The mantissa is the rest of the number after the decimal of the base 2 scientific notation found in (f) above.

0010000010 from 1.0010000010 x 2⁶                  [Just remove the leftmost 1 and the decimal point]

(k) Combine the three parts: sign bit (1 bit), exponent bits (11 bits) and mantissa bits (52 bits)

sign bit = 1                [1 bit]

exponent bits = 10000000101    [11 bits]

mantissa bits = 0010000010        [10 out of 52 bits]

Then fill out the remaining part of the mantissa with zeros to make it 52 bits.

mantissa bits = 0010000010000000000000000000000000000000000000000000

Putting all together we have

1 10000000101 0010000010000000000000000000000000000000000000000000 as -72.125 in  a IEEE 754 double precision format.

Answer:

I think false

hope it helps

Answer:

False

Explanation:

The return key is the backspace or escape key.

Hope it helps.

Answer:

The program written in Python is as follows

nums = []

for i in range(0,68):

-->nums.append(i)

print(nums)

Explanation:

Please note that --> is used to denote indentation

The first line creates an empty list

nums = []

This line creates an iteration from 0 to 67, using iterating variable i

for i in range(0,68):

This line saves the current value of variable i into the empty list

nums.append(i)

At this point, the list has been completely filled with 0 to 67

This line prints the list

print(nums)

//Class header definition

public class TestEven {

   //Method main to test the method isEven

   public static void main(String args[ ] ) {

       //Test the method isEven using numbers 5 and 6 as arguments

       System.out.println(isEven(5));

       System.out.println(isEven(6));

   }

   //Method isEven

   //Method has a return type of boolean since it returns true or false.

   //Method has an int parameter

   public static boolean isEven(int number){

       //A number is even if its modulus with 2 gives zero

      if (number % 2 == 0){

           return true;

       }

       //Otherwise, the number is odd

       return false;

   }

}

====================================================

=========================================================

false

true

==========================================================

The above code has been written in Java. It contains comments explaining every part of the code. Please go through the comments in the code.

A sample output has also been provided. You can save the code as TestEven.java and run it on your machine.

Methods are collections of named program statements that are executed when called or evoked

The program in Java, where comments are used to explain each line is as follows:

import java.util.*;

public class Main {

   public static void main(String args[ ] ) {

       //This creates a Scanner Object

       Scanner input = new Scanner(System.in);

       //This gets input for the number

       int num = input.nextInt();

       //This calls the function

       System.out.println(isEven(num));

  }

  public static boolean isEven(int num){

      //This returns true, if num is even

      if (num % 2 == 0){

          return true;

      }

      //This returns false, if otherwise

      return false;

  }

}

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Answer:

milespergallon = float(input())

dollarspergallon = float(input())

milestodrive = int(input())

trip_cost = milestodrive / milespergallon * dollarspergallon

print('Cost to drive {:d} miles at {:f} mpg at $ {:.2f}/gallon is: $ {:.2f}'.format(milestodrive, milespergallon, dollarspergallon, trip_cost))

Explanation:

Get the inputs from the user for milespergallon, dollarspergallon and milestodrive

Calculate the trip_cost, divide the milestodrive by milespergallon to get the amount of gallons used. Then, multiply the result by dollarspergallon.

Print the result as requested in the question

Answer:

def driving_cost(driven_miles, miles_per_gallon, dollars_per_gallon):

  gallon_used = driven_miles / miles_per_gallon

  cost = gallon_used * dollars_per_gallon  

  return cost  

miles_per_gallon = float(input(""))

dollars_per_gallon = float(input(""))

cost1 = driving_cost(10, miles_per_gallon, dollars_per_gallon)

cost2 = driving_cost(50, miles_per_gallon, dollars_per_gallon)

cost3 = driving_cost(400, miles_per_gallon, dollars_per_gallon)

print("%.2f" % cost1)

print("%.2f" % cost2)

print("%.2f" % cost3)

Explanation:

Answer:

Distributed Consensus

Explanation:

A distributed system refers to a set of connected computers to achieves a goal. They can each work independently and they usually appear as a single computer system to end users.

Database computations usually require each connected computer node to agree on the computations and results  before submitting it to the database.

This process is referred to as a Distributed Consensus.

A distributed consensus makes sure that in a distributed system, the data among nodes all reach an agreement and make confirmations before submitting to a database.

Answer:

a. True

Explanation:

Hardware inventory details about memory, operating system, devices etc. Software inventory details about software in the network and operating systems.  Inventory characteristics for software and hardware assets are related to technical functionality. These hardware and software assets are highly accurate and updated each time when there is any change.

Answer:

True is the correct answer .

Explanation:

Key generation is the method that are used for the security purpose .The key generation is used in the encryption and decryption process that are totally depends type of the authentication  protocol.We can used the particular program to produce the key .

The key generation is used in the cryptography. We also symmetric and asymmetric key concept for the key generation .Authentication and Key Agreement is one of the authentication  protocol that are mainly used in the 3 g network that are depend on the key generation.

Therefore the given statement is true .

Answer:

(b) is used in Traceroute

(d) is used by Ping

Explanation:

ICMP is the short form of Internet Control Message Protocol. It is a protocol used by networking devices such as routers to perform network diagnostics and management. Since it is a messaging protocol, it is used for sending network error messages and operations information. A typical message could be;

i. Requested service is not available

ii. Host could not be reached

ICMP does not use ports. Rather it uses types and codes. Some of the most common types are echo request and echo reply.

Traceroute - which is a diagnostic tool - uses some messages available in ICMP (such as Time Exceeded) to trace a network route.

Ping - which is an administrative tool for identifying whether a host is reachable or not - also uses ICMP. The ping sends ICMP echo request packets to the host and then waits for an ICMP echo reply from the host.

ICMP is not required to solve NAT traversal problem neither does it have a new version in IPV6.

Answer:

Here is the Python program.

def DigitList(number):  

   return sum(map(int, str(number)))  

list = [18, 23, 35, 43, 51]  

ascendList = sorted(list, key = DigitList)  

print(ascendList)

Explanation:

The method DigitList() takes value of numbers of the list as parameter. So this parameter is basically the element of the list. return sum(map(int, str(number)))  statement in the DigitList() method consists of three methods i.e. str(), map() and sum(). First the str() method converts each element of the list to string. Then the map() function is used which converts every element of list to another list. That list will now contain digits as its elements. In short each number is converted to the string by str() and then the digit characters of each string number is mapped to integers. Now these digits are passed to sum() function which returns the sum. For example we have two numbers 12 and 31 in the list so each digit is 1 2 and 3 1 are added to get the sum 3 and 4. So now the list would have 3 4 as elements.

Now list = [18, 23, 35, 43, 51] is a list of 5 numbers. ascendList = sorted(list, key = DigitList)  statement has a sorted() method which takes two arguments i.e. the above list and a key which is equal to the DigitList which means that the list is sorted out using key=DigitList. DigitList simply converts each number of list to a another list with its digits as elements and then returns the sum of the digits. Now using DigitList method as key the element of the list = [18, 23, 35, 43, 51] are sorted using sorted() method. print(ascendList) statement prints the resultant list with values in the list in ascending order sorted by the sum of their digits.

So for the above list [18, 23, 35, 43, 51] the sum of each number is 9 ,5, 8, 7, 6 and then list is sorted according to the sum values in ascending order. So 5 is the smallest, then comes 6, 7, 8 and 9. So 5 is the sum of the number 23, 6 is the sum of 51, 7 is the sum of 43, 8 is the sum of 35 and 9 is the sum of 18. So now after sorting these numbers according to their sum the output list is:

[23, 51, 43, 35, 18]                                                                                                          

Answer:

Most HTML tags are fixed

Explanation:

There are various kind of technology one can use for designing web application. A web designer should know HTML, CSS and other basic building block of web development.

HTML meaning hypertext markup language is used to define the basic structure of a web page . HTML has tags which are used to declare the contents on the web page. The tags includes anchor(<a>), paragraph tag(<p>),header tag(<h1>).

CSS which is known as Cascading style sheet describes the presentation of the web pages.

Other tags in HTML includes <img>, <link>, <ul>  etc and generally this tags are HTML tags which are fixed for a particular kind of job . For example you can't use an image tag <img>   to enclose video instead you use a video tag <video> tag. The header tag <h1> cannot be represented like a paragrapgh tag<p> on the web page. The both of them serve specific purpose and are fixed.  

Answer:

Here is the C++ program for Employee class with fields id,name and sal.

#include <iostream>  // to use input output functions

#include <string>  //to manipulate and use strings

using namespace std;   // to access objects like cin cout

class Employee {  //class Employee

private:  

/* the following data members are declared as private which means they can only be accessed by the functions within Employee class */

  string name;  //name field

  int id; //id field

  double sal;   //salary field

public:    

  Employee();  // constructor that initializes an object when it is created

/* setName, setID and setSalary are the mutators which are the methods used to change data members. This means they set the values of a private fields i.e. name, id and sal */

  void setName(string n)  //mutator for name field

     { name = n; }        

  void setId(int i)  //mutator for id field

     { id = i; }        

  void setSalary(double d)  //mutator for sal field

     { sal = d; }  

/* getName, getID and getSalary are the accessors which are the methods used to read data members. This means they get or access the values of a private fields i.e. name, id and sal */

  string getName()  //accessor for name field

     { return name; }        

  int getId()  //accessor for id field

     { return id; }        

  double getSalary()  //accessor for sal field

     { return sal; }  };  

Employee::Employee() {  //default constructor where the fields are initialized

  name = "";  // name field initialized

  id = 0;  // id field initialized to 0

  sal = 0;   }   // sal field initialized to 0

void display(Employee);  

// prototype of the method display() to display the data of Employee

int main() {  //start of the main() function body

  Employee emp;  //creates an object emp of Employee class

/*set the name field to Abc Xyz which means set the value of Employee class name field to Abc Xyz  through setName() method and object emp */

  emp.setName("Abc Xyz");  

/*set the id field to 1234 which means set the value of Employee class id field to 1234  through setId() method and object emp */

  emp.setId(1234);

/*set the sal field to 1000 which means set the value of Employee class sal field to 1000  through setSalary() method and object emp */

  emp.setSalary(1000);    

  display(emp);  }   //calls display() method to display the Employee data

void display(Employee e) {  // this method displays the data in the Employee //class object passed as a parameter.

/*displays the name of the Employee . This name is read or accessed through accessor method getName() and object e of Employee class */

  cout << "Name: " << e.getName() << endl;  

/*displays the id of the Employee . This id is read or accessed by accessor method getId() and object e */

  cout << "ID: " << e.getId() << endl;

/*displays the salary of the Employee . This sal field is read or accessed by accessor method getSalary() and object e */

  cout << "Salary: " << e.getSalary() << endl;  }

Explanation:

The program is well explained in the comments mentioned with each statement of the program.

The program has a class Employee which has private data members id, name and sal, a simple default constructor Employee(), mutatator methods setName, setId and setSalary to set the fields, acccessor method getName, getId and getSalary to get the fields values.

A function display( ) is used to display the Employee data i.e. name id and salary of Employee.

main() has an object emp of Employee class in order to use data fields and access functions defined in Employee class.

The output of the program is:

Name: Abc Xyz                                                                                                      

ID: 1234                                                                                                                  

Salary: 1000

The program and its output are attached.

Answer:

Verifying digital signature

Explanation:

In order to guarantee authenticity of digital messages an documents, the certificate authority will perform the verification of the digital signature. A valid digital signature indicates that data is coming from the proper server and it has not been altered in its course.

Answer:

third ighjojdudjz

ghddduewjj

wkckdjjj

Explanation:

cchmddkhwmx

ndhdnahdd

jruditndjed

Answer:

#This is in Python

number1 = raw_input("Enter a number: ")

number2 = raw_input("Enter another number: ")

sum = float(number1) + float(number2)

print(sum)

Explanation:

Answer:

False.

Explanation:

SONET is an acronym for synchronous optical networking while SDH is an acronym for synchronous digital hierarchy. They are both standard protocols used for the transmission of multiple digital bit streams (multiplex) synchronously through an optical fiber by using lasers.

Hence, both SONET and SDH are interoperable and typically the same standard protocols in telecommunication networks. Also, the SONET is a standardized protocol that is being used in the United States of America and Canada while SDH is an international standard protocols used in countries such as Japan, UK, Germany, Belgium etc.

The synchronous optical networking was developed in 1985 by Bellcore and it was standardized by the American National Standards Institute (ANSI). SDH was developed as a replacement for the plesiochronous digital hierarchy (PDH).

Generally, SONET comprises of four functional layers and these are;

1. Path layer

2. Line layer.

3. Section layer.

4. Physical or Photonic layer.

The SDH comprises of four synchronous transport modules and these are;

1. STM-1: having a basic data rate of 155.52Mbps.

2. STM-4: having a basic data rate of 622.08Mbps.

3. STM-16: having a basic data rate of 2488.32Mbps.

4. STM-64: it has a basic data rate of 9953.28Mbps.

These two standard telecommunications protocols are used to transmit large amounts of network data over a wide range through the use of an optical fiber.

Answer:

The answer is "It uses the section access with in the qlikview script".

Explanation:

QlikView is now QlikSense, it comes with section access, that protects against this danger. It a way of determining, which can display certain details, it is also known as objects, that can be displayed by whom and out of which domain, etc.

There are different aspect of  security mechanism. The security mechanism that one does find the file containing data of the users/user groups have inbuilt security is that  the section access with in the qlikview script".

There are different mechanisms that is often used to secure the Web.  This is made of the mechanisms that is often used to apply security and they includes virtual private networks (VPNs), encryption, firewalls, routing filters, etc.

Note that a security mechanism in QlikView is often set up in two distinct ways or means, This can be done by building it into the QlikView document script, or by setting it up via the use of QlikView Publisher.

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Answer:

Following is the program in python programming language

sports = [14, 25, 32, 63, 79, 38, -10] #list sports  

print("The original list is : " + str(sports)) #display original list

last = sports[-3:] #extracts the last 3 items from the list

print("The last 3 elements of list is : " + str(last)) #display the last 3 item

Output:

The original list is  : [14, 25, 32, 63, 79, 38, -10]

The last 3 elements of list is: [79, 38, -10]

Explanation:

Following are the description of program

Answer:

Assuming this is Python, I would do something like the following:

Explanation:

hourWage= float(input ("What is your hourly wage?: "))

regularHours= float(input ("How many regular hours did you work this week?: "))

overtimeHours= float(input ("How many overtime hours did you have this week?: "))

overtimeWage= (1.5*hourWage)

totalWeeklyPay= (hourWage*regularHours)+(overtimeHours*overtimeWage)

print= ("Your total weekly pay is: " ,totalWeeklyPay)

I hope this works!

Following are the program to calculate weeklyPay value:

Program Explanation:

Program:

Wage = float(input("Enter hourly wage: "))#defining a variable Wage that inputs float value

Hour = float(input("Enter total number of regular hours: "))#defining a variable Hour that inputs float value

Hours = float(input("Enter overtime hours: "))#defining a variable Hours that inputs float value

weeklyPay = (Wage*Hour) + (1.5*Wage*Hours)#defining a variable weeklyPay that calculates the values

print (weeklyPay)#defining a print method that prints weeklyPay value

Output:

Please find the attached file.

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If my computer has 4 gigabytes of ram memory then I have 4e+9 bytes of memory.  I think-

Answer: That isn't a software problem, its a hardware problem. There is a difference between 12gb of ram versus 100 gb of HDD. Ram is temporary storage, you can not turn SSD or HDD storage into RAM. If you are a gamer, STEER AWAY FROM LAPTOPS, DO NOT BUY A GAMING LAPTOP. Either buy a DESKTOP (or build) or a console. They give more performance for the price and they are easily upgradable. Not many people can open up a laptop and put in more RAM because the hardware is incredibly small.

A portable gadget is any equipment that may be transported conveniently. The correct option is A.

A portable gadget is any equipment that may be transported conveniently. It is a computer device with a compact form factor that is meant to be handled and utilized in the hands.

The physical security measure that is used to ensure that portable devices will be more difficult to steal is a Cable lock.

Hence, the correct option is A.

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Answer:

a) True

Explanation:

A macro virus infects executable portions of code. A virus that attaches to an executable program can do anything the program is permitted to.

Most use an Email for spreading macro viruses, which is a common method and is rather easy. Although, more advanced softwares trick people into giving personal information.

Answer:Crisis-mapping

Explanation:

Answer:

Crisis Mapping

Explanation:

Answer:

u r

Explanation:

dumb