Answer:
a. This is an instance of overfitting.
Explanation:
In data modeling and machine learning practice, data modeling begins with model training whereby the training data is used to train and fit a prediction model. When a trained model performs well on training data and has low accuracy on the test data, then we say say the model is overfitting. This means that the model is memorizing rather Than learning and hence, model fits the data too well, hence, making the model unable to perform well on the test or validation set. A model which underfits will fail to perform well on both the training and validation set.
Write a program named prices.c that repeatedly asks users to enter the price of an item until they enter zero. Prices less than zero will be ignored. The program will then print the number of items purchased, the subtotal of the prices, the sales tax charged (at a rate of 7.5%), and the grand total.
Answer:
Explanation:
The following is written in Java. It creates a while loop that requests price from the user and goes adjusting the quantity and subtotal as more prices are added. If 0 is entered it breaks the loop and outputs the quantity, subtotal, tax, and grand total to the user.
import java.util.Scanner;
class Brainly {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
int quantity = 0;
double subtotal = 0;
double tax, grandTotal;
while (true) {
System.out.println("Enter a price: ");
double price = in.nextDouble();
if (price == 0) {
break;
} else if (price > 0) {
quantity += 1;
subtotal += price;
}
}
tax = subtotal * 0.075;
grandTotal = subtotal + tax;
System.out.println("Quantity: $" + quantity);
System.out.println("Subtotal: $" + subtotal);
System.out.println("Tax: $" + tax);
System.out.println("GrandTotal: $" + grandTotal);
}
}
In the early days of computer technology, which system was justified because data-processing personnel were in short supply, hardware and software were expensive, and only large organizations could afford computers
Answer:
Centralized Processing
Explanation:
Centralized processing was developed to process all of the data in a single computer, and since the first computers were stand-alone with all input and output devices in the same room, only the largest organizations could afford to use centralized processing.
Does anyone know what type of Chromebook this is?
Answer: Its............ A Chromebook type of Chromebook...??
Explanation:
Ion know I aint a geek, geezer -_- (Thats a lie)
You would like to upgrade the processor in your system to a 64-bit processor. Which of the components will you most likely need to upgrade as well to take full advantage of the new processor
Answer: Operating system
Explanation:
The components that will be required to upgrade as well to take full advantage of the new processor is the Operating system.
The operating system manages the software resources and the computer hardware, through the provision of common services for the computer programs. It simply supports the basic function of the computer like task scheduling
space bar in computer
Answer: Its the one in the middle the really long thingy it looks like a rectangle
Explanation:
ITS IN THE MIDDLE
loa (speaker) thuộc nhóm thiết bị nào ?
Answer:
this say's "Which device group?" hope i helpped
write short notes about monitor printer and speaker
Answer:
A computer monitor is an electronic device that shows pictures for computers. Monitors often look similar to televisions. The main difference between a monitor and a television is that a monitor does not have a television tuner to change channels. Monitors often have higher display resolution than televisions.
A printer is a device that accepts text and graphic output from a computer and transfers the information to paper, usually to standard size sheets of paper. Printers vary in size, speed, sophistication, and cost. In general, more expensive printers are used for higher-resolution color printing.
Speakers receive audio input from the computer's sound card and produce audio output in the form of sound waves. Most computer speakers are active speakers, meaning they have an internal amplifier which allows you to increase the volume, or amplitude, of the sound.
For which of the following values of A and B will the expression A || B be true?
A = False, B = False
Both A and B must be true
The expression is impossible to be true no matter the values of A and B.
A = False, B = True
Answer:
A = False, B = True
Explanation:
|| is equal OR. To the expression be true, you need one of them to be true or both.
A = TRUE, B = FALSE
Returns true
A = FALSE, B = FALSE
Returns true
A = TRUE, B = TRUE
Returns true
Walt needs to ensure that messages from a colleague in another organization are never incorrectly identified as spam.
What should he do?
O Configure a safe recipient.
O Configure a blocked sender.
O Configure a safe sender
O Do nothing.
Answer:
Configure a safe sender
Explanation:
The Safe Sender List in Outlook, is a list of domain names and email addresses that are not managed in the manner spam and junk messages are filtered out and placed in the spam or junk folder. The emails of contacts added to the Safe Senders list are always received in the inbox
Therefore, to ensure that messages from his colleague are never treated as spam, Walt should;
Configure a safe sender.
HEALTH AND SAFETY IN USING ICT TOOLS
Answer:
Health and Safety using ICT Tools.
...
Some of the long-term health effects are:
Headaches and tiredness. Using the mobile phone for hours can be very stressful and may lead to mild or severe headaches.
Creates joint pain. ...
Mobile phone battery explosion. ...
Induced ringing!
Answer:
ICT tools for health and safety. Find common health issues related to computer usage and other ICT tools.
Explanation:
Use of ICT instruments
ICT tools are computer-based equipment used for processing and communicating information and technology. There are certain ICT tools;
- TV.
- System of Public Address
- Radio
- Mobile Phone
- Computer
What are the adverse consequences of long-term television exposure?
You don't have eyes for hours to stare at the TV.
Taking hours on the TV can be dangerous and dangerous for the eye.
If you starve continuously, your eye will get overworked and this will cause an irritation of the eye, such as dry eye, red, itchy, and watery eyes, fatigue, eyelid weight or forehead, as well as eye concentration.
Certain long-term effects on health are:
1. Tiredness and headaches.
2. Make pain joint.
3. Battery explosion mobile phone.
4. Ringing induced! In ears.
Write a method that accepts a string as an argument and checks it for proper capitalization and punctuation. The method should determine if the string begins with an uppercase letter and ends with a punctuation mark. The method should return true if the string meets the criteria; otherwise it should return false .
Answer:
The method in Python is as follows:
def checkStr(strng):
if strng[0].isupper() and strng[-1] == "?":
return True
else:
return False
Explanation:
This defines the method
def checkStr(strng):
This checks if the first character i upper and if the last is "??
if strng[0].isupper() and strng[-1] == "?":
If the condition is true, the function returns true
return True
Else, it returns false
else:
return False
Holly the Hacker has a list of 100,000 common passwords. She wants to use this list to break into UNIX-like systems that use a password file with lines consisting of:
The question is incomplete. The complete question is :
Holly the Hacker has a list of 100,000 common passwords. She wants to use this list to break into UNIX-like systems that use a password file with lines consisting of:
The user's ID in plaintext.
10 bits of randomly chosen "salt," in plaintext.
The user's password, concatenated with the salt, and then encrypted.
There are very many such systems around the world, and Holly plans to steal the password files from as many as she can. The average system has 50 users in its password file.
Holly wants to create a master list of the encrypted versions of all the 100,000 passwords on her list, encrypted with all possible salt values. To create this master list, approximately how many encryptions of a password-concatenated-with-salt would Holly have to perform?
A. 2 million
B. 5 million
C. 100 million
D. 1 million
Solution :
It is given that the hacker, Holly wants break into the UNIX-like systems using 100,000 common passwords that she has on her list. The system has at an average of 50 users in the password files.
Therefore, to create a master list, Holly have to perform about 50 x 100,000 = 5,000,000 encryptions for the password concatenated-with-salt.
Thus the correct option is option (B). 5 million
You're installing two new hard drives into your network attached storage device. Your director asks that they be put into a RAID solution that offers redundancy over performance. Which would you use?
a. RAID 0
b. RAID 1
c. RAID 5
d. RAID 6
e. RAID 10
Answer:
d. RAID 6
Explanation:
RAID is a data storage technology that combines multiple physical disk drive components into a single logical unit. The functions of RAID is to provide performance and redundancy.
RAID 0 provides data stripping but it does not offer data stripping.
RAID 1 increases performance to about 2x but it limits the disk capacity to about 50%
RAID 5 provides redundancy and increased perfomance but it is limited to small disk drive.
RAID 6 also provides redundancy but it slows performance
RAID 10 increases performance and data protection.
RAID 6 is the best drive that offers redundancy over performance.
Design a class named largeIntegers such that an object of this class can store an integer of any number of digits. Add operations to add, subtract, multiply, and compare integers stored in two objects. Also add constructors to properly initialize objects and functions to set, retrieve, and print the values of objects. Write a program to test your class. g
Answer:
Here the code is given as follows,
Explanation:
Code:
import java.util.Scanner;
//created class named largeintegers
class largeintegers{
//class can hold a long number
long number;
//constructor to set number
largeintegers(long number){
this.number=number;
}
//getNumber method to get number
long getNumber(){
return number;
}
//below are some basic operations
long addition(long num1,long num2){
return num1+num2;
}
long subtract(long num1,long num2){
return num1-num2;
}
long multiply(long num1,long num2){
return num1*num2;
}
boolean compare(long num1,long num2)
{
return num1>num2;
}
public static void main(String[] args) {
//declared to long numbers
long number1,number2;
//scanner class to take user input
Scanner sc= new Scanner(System.in);
//taking input numbers
System.out.println("Enter a Number ");
number1=sc.nextLong();
System.out.println("Enter 2nd Number :");
number2=sc.nextLong();
//created two objects
largeintegers object=new largeintegers(number1);
largeintegers object2=new largeintegers(number2);
//displaying two numbers
System.out.println("Entered Numbers ");
System.out.println(object.getNumber());
System.out.println(object2.getNumber());
//calling basic methods using created objects
System.out.println("Some Operations on Given two Numbers ");
System.out.println("Addition:"+object.addition(object.getNumber(), object2.getNumber()));
System.out.println("Subtraction:"+object.subtract(object.getNumber(), object2.getNumber()));
System.out.println("Multiplication:"+object.multiply(object.getNumber(), object2.getNumber()));
System.out.println("Comparison:");
if(object.compare(object.getNumber(), object2.getNumber())==true)
{
System.out.println("First Number is Greater than Second Number ");
}
else
{
System.out.println("Second Number is Greater than First Number ");
}
sc.close();
}
}
Output:-
go sub to VolleyBall_chan on y.o.u.t.u.b.e
Answer go to y o u t u b e type in volleyball_chan hit the sub button
Explanation:
Declare a seven-row, two-column int array named temperatures. The program should prompt the user to enter the highest and lowest temperatures for seven days. Store the highest temp in the first column and the lowest in the second column. The program should display the average high and average low temperature. Display the average temperatures with one decimal place.
Answer:
Following are the code to the given question:
#include<iostream>//header file
#include<iomanip>//header file
using namespace std;
int main()//main method
{
double temperatures[7][2];//defining a double array temperatures
double lowAvg=0, highAvg=0;//defining a double variable
for(int i = 0;i<7;i++)//defining loop to input the value
{
cout<<"Enter day "<<(i+1)<<" highest temperatures: ";//print message
cin>>temperatures[i][0];//input highest temperatures value
cout<<"Enter day "<<(i+1)<<" lowest temperatures: ";//print message
cin>>temperatures[i][1];//input lowest temperatures value
}
cout << fixed << setprecision(1);//using the setprecision method
for(int i = 0;i<7;i++)//defining loop to calculating the Average of the
{
highAvg += temperatures[i][0];//holding highest value
lowAvg += temperatures[i][1];//holding lowAvg value
}
cout<<"Average high temperature = "<<highAvg/7<<endl;//calculate amd print highest temperature Average
cout<<"Average low temperature = "<<lowAvg/7<<endl;//calculate amd print lowest temperature Average
return 0;
}
Output:
Please find the attached file.
Explanation:
In this code, a 2D array "temperatures" and two-variable "highAvg, lowAvg" as double is declared, that uses the two for loops.In the first loop, it uses an array to input the value from the user-end.In the second loop, it uses the double variable that calculates the average value of the temperature.discuss seven multimedia keys
Answer:
Any seven multimedia keys are :-
□Special keys
□Alphabet keys
□Number keys
□Control keys
□Navigation keys
□Punctuation keys
□Symbol keys
Any action that causes harm to your computer is called a
1.Security harm
2.Security damage
3.Security risk
4.Security crime
Answer:
Security risk.
Explanation:
It is making your computer vulnerable to attacks and less secure.
Any action that causes harm to your computer is called a security risk. That is option 3.
What is security risk in computer?A computer is an electronic device that can be used to prepare, process and store data.
Security risk in computer is any action undertaken by a computer user that can lead to the loss of data or damage to hardware or software of the computer.
Some of the security risks that predisposes a computer to damage include the following:
unpatched software, misconfigured software or hardware, andbad habits such as keeping fluid close to the computer.Therefore, any action that causes harm to your computer is called a security risk.
Learn more about security risks here:
https://brainly.com/question/25720881
Carla is assigning tasks to others and she needs to ensure that she is aware of their progress. Which option should
she choose?
O Send status report when I complete an assigned task
O Completed task color
O Set Quick Click flag
O Keep my task list updated with copies of tasks
Answer: Send status report when I complete an assigned task
Explanation:
In order to be aware of their progress, the option to choose is the "Send status report when I complete an assigned task".
To do this click on options on the tools menu, then click on task options. Then, after the keep updated copies of the assigned tasks on my task list has been selected in the check box, one will then select "Send status reports when the assigned tasks are completed".
What is the importance of using DNS?
Answer:
DNS provides a name to number (IP address) mapping or translation, allowing internet users to use, easy to remember names, and not numbers to access resources on a network and the Internet.
Thank you.......
Have a good day......
Answer:
DNS stand for Domain Name System
Explanation:
The benefits of DNS are that domain names: can map to a new IP address if the host's IP address changes. are easier to remember than an IP address. allow organizations to use a domain name hierarchy that is independent of any IP address assignment.
Is this one are you looking for??
1. Design pseudocode for a program that will permit a user to store exactly 75 numbers in an array. Create an array big enough to hold the numbers and store each number in the array as it's entered. Be sure to PROMPT the user for each number before it's entered. You do not need to initialize the array. HINTS: Make sure you use a named constant when you declare the array (the number inside the brackets should be a named constant that you declared before the array declaration.) Use a for loop (or while loop if you'd like) to get each number from the user. The module has an example of pseudocode very similar to this problem. You're free to use this pseudocode as you create your program. 2. Identify three advantages of arrays. For each advantage, write at least one complete sentence explaining why the advantage you listed is an advantage. More detail is better. You may use outside resources but be sure to CITE those resources using APA format.
Answer:
Question 1: The pseudocode is as follows:
int n = 70;
int intArray[n];
for(int i = 0; i< n; i++){
print("Input "+(i+1)+": ")
input intArray[i];
}
Question 2: Advantages of array
Indexing in arrays in easyIt can be used to store multiple values of the same typeIt can be used for 2 dimensional inputsExplanation:
Question 1
This declares and initializes the length of the array
int n = 70;
This declares the array
int intArray[n];
This iterates through the length of the array
for(int i = 0; i< n; i++){
This prompts the user for inputs
print("Input "+(i+1)+": ")
This gets input for each element of the array
input intArray[i];
}
Question 2
Indexing: Elements of the array can easily be accessed through the index of the element.
For instance, an element at index 2 of array intArray can be accessed using: intArray[2]
Multiple Values: This is illustrated in question 1 above where we used 1 array to collect input for 70 values.
2 dimensional inputs: Literally, this means that array can be used to represent matrices (that has rows and columns).
An illustration is:
intArray[2][2] = {[0,1],[3,5]}
The above array has 2 rows, 2 columns and 4 elements in total.
calculateAverageSalary(filename): Returns the average salary of all employees rounded down to 2 decimal points highestHireMonth(filename): Returns the month (integer) during which most hires were made over the years getMonth(date): Helper function to extract and return the month number from a date given as a string input of format MM/DD/YY. Return type should be an int.
Answer:
An extract from the answer is as follows:
for i in salary:
total_salary+=float(i)
count+=1
return round(total_salary/count,2)
def getMonth(date):
ddate = []
for i in date:
ddate.append(i.split('/')[0])
mode = int(max(set(ddate), key=ddate.count))
return mode
def highestHireMonth(filename):
month = []
See explanation for further details
Explanation:
Given
Attachment 1 completes the question
The complete answer could not be submitted. So, I've added it as an attachment.
See attachment 2 for program source file which includes the main method.
Comments are used to explain difficult lines
you can use a minus sign to make a negative numberlike -2. What happens to each of the following 2++2
2 - -2
2+ - 2
2- +2
If we use a minus sign to make a negative number like -2. Then the following terms will be:
2 - -2 = 42 + -2 = 02 - +2 = 0What is calculation?A calculation is a methodical, well-thought-out process. Calculating the solution to a math problem is the first type of calculation, for which you might use a calculator. The calculation also includes applying logic to a non-numerical issue.
Plus, minus, multiply, and divide are the basic signs used in math to calculate problems. These signs also change when come n contact with each other, like plus and minus are equal to minus.
Like here, 2 - -2. Minus and minus is plus, so two plus two is four.
2 + -2 = 0, here plus minus = minus, so two minus two is 0.
Therefore, the calculation for the given is
2 - -2 = 42 + -2 = 02 - +2 = 0To learn more about calculation, refer to the link:
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Assume a varible is declared in a block of code within a pair of curly braces. The scope of the variable ______ Group of answer choices starts from its declaration point and extends to the end of the block. starts from its declaration point and extends to the end of the entire program. covers the entire block, including the code before the declaration point. covers the entire program, including the code in the other blocks.
Answer:
The answer is the second choice that is "starts from its declaration point and extends to the end of the entire program".
Explanation:
In a functional component were specified variables of local scope, and those outside are defined of global scope. It shows that the local variables can be accessible within the specified function, whereas global variables can be accessed via all functions all through the code structure. The variable size is the code portion where the variable can be accessed.
Depending on your web browser, you may be able to locate a folder or a file on your machine that contains cookies. Look through the folder or open the file. List references to three websites you have visited.
Answer:
yourmom.com yourhaouse.com and mcdonalds.org
Explanation:
Smartphones are more likely to be used than laptop computers for everyday ICT use.
Describe three advantages of using a smartphone rather than a laptop computer.
Answer:
it's small amd you can carry it everywhere
easy to use
long lasting battery
Explanation:
hope the answers are right:)
Create a method called letterGrade that will pass the student's average grade as a parameter and return a letter grade (char). Once passed, use an if..else if structure to determine whether the student has an A, B, C, D, or F. Return that letter grade. Use the standard grade scale: 90-100 (A), 80-89 (B), 70-79 (C), 60-69 (D), 0-59 (F).
Answer:
The method in Java is as follows:
public static char letterGrade(int average){
char grade =' ';
if(average>= 90 && average <=100){ grade ='A'; }
else if(average>= 80 && average <=89){ grade ='B'; }
else if(average>= 70 && average <=79){ grade ='C'; }
else if(average>= 60 && average <=69){ grade ='D'; }
else if(average>= 0 && average <=59){ grade ='F'; }
return grade;
}
Explanation:
This defines the method
public static char letterGrade(int average){
This initializes the grade to a blank
char grade =' ';
If average is between 90 and 100 (inclusive), grade is A
if(average>= 90 && average <=100){ grade ='A'; }
If average is between 80 and 89 (inclusive), grade is B
else if(average>= 80 && average <=89){ grade ='B'; }
If average is between 70 and 79 (inclusive), grade is C
else if(average>= 70 && average <=79){ grade ='C'; }
If average is between 60 and 69 (inclusive), grade is D
else if(average>= 60 && average <=69){ grade ='D'; }
If average is between 0 and 59 (inclusive), grade is F
else if(average>= 0 && average <=59){ grade ='F'; }
This returns the grade
return grade;
}
Function newPriceTable = UpdatePriceTable(origPriceTable, changePrice, colNum) % UpdatePriceTable: Adds changePrice to column colNum of origPriceTable % Returns the updated price table newPriceTable % Inputs: origPriceTable - original price data table % changePrice - column array of pricing changes % colNum - specified column of priceTable to update % % Outputs: newPriceTable - updated price data table % Assign newPriceTable with data from priceTable; newPriceTable = [0, 0; 0, 0;]; % FIXME % Assign newPriceTable column specified by colNum with original price % data updated by changePrice newPriceTable = [0, 0; 0, 0;]; % FIXME end Run Your Solution Code to call your function when you click Run
Solution :
The function code is :
function newPriceTable = UpdatePriceTable(origPriceTable,changePrice, colNum)
newPriceTable = origPriceTable:
newpriceTable(:,colNum) = newPriceTable(:,colNum)+changePrice;
end
UpdatePriceTable ([19.99, 9.99; 14.99, 8.99;], [-1.00, -1.50] , 1)
ans = 18.9900 9.9900
13.4900 8.9900
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TIME REMA
01:08:
Which view is most often used to reorder slides in a presentation that has already been created?
HERE
ОО
Outline view
Slide Sorter view
O Reading view
O Normal view
Answer:
slide sorter view
Explanation:
Explanation: while you can use 3/4 of these options to reorder slides, it is more common to use slide sorter view.
Slide sorter view. while you can use 3/4 of these options to reorder slides, it is more common to use slide sorter view.
What is Slide sorter view?
You can see and sort the presentation slides in PowerPoint using the Slide Sorter view. Click the "Slide Sorter" button in the presentation view buttons in the Status Bar to enter the Slide Sorter view.
The presentation slides can be added to, removed from, and copied using the Slide Sorter view. The visual flow of the presentation is also displayed in PowerPoint's Slide Sorter view. Additionally, you may add and observe a slide transition animation here.
All of the presentation slides in PowerPoint's Slide Sorter mode are displayed as thumbnails. The slide's content cannot be changed in this view. However, many of the functions available in the PowerPoint Slide Sorter view
Therefore, Slide sorter view. while you can use 3/4 of these options to reorder slides, it is more common to use slide sorter view.
To learn more slide sorter view, refer to the link:
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Brody is concerned that he is going to exceed the quota set for his mailbox. Where should he go to access the Mailbe
Cleanup tools?
O Backstage view
Inbox
O Deleted Items Folder
Outlook Web App
ANSWER QUICK IM TIMED WILL GIVE OUT PTS
Answer:
Outlook Web App
Explanation:
For Brody to accomplish this he will need to go to the Outlook Web App. Here, he will need to navigate to the top of the application where the toolbar is located. Then he will need to click on File, then Tools, and finally Mailbox Cleanup. This will give him access to all of the cleanup tools that the Outlook Mailbox has for managing all of his electronic mail as well as adjusting the quota set for his mailbox.
Answer:
A. Backstage view indox
Explanation: