Answer:
False.
Explanation:
Implicit unwrapped optional variables are those which are at option and they might be nil. It is not necessary that all implicit unwrapped optional variables should have an exclamation mark. Swift may eliminate the need for unwrapping.
d. Application software are developed by software companies
Answer:
May this help you l think
Explanation:
There are several different types. They can be grouped into four basic categories:
Application development that provides functionality for users to perform tasks. Examples include office productivity suites, media players, social media tools, and booking systems. Applications can run on the user’s own personal computing equipment or on servers hosted in the cloud or by an internal IT department. Media streaming development is one example of application development for the cloud.2.System software development to provide the core functions such as operating systems, storage systems, databases, networks, and hardware management.
(1)similarities between backspace key and delete key. (2) different between backspace key and delete key. (3) explain the term ergonomics. (4) explain the following. a click b right click double click d triple click e drag and drop.
Answer:
ddhejaajegxhzi
Explanation:
jfrhsjadigugud
Chất xơ có nhiều trong thực phẩm nào?
Answer:
Quả lê Quả lê là một loại trái cây phổ biến vừa ngon vừa bổ dưỡng. ...
Quả dâu tây. Dâu tây là loại quả cực kỳ ngon. ...
Quả bơ Quả bơ khác hơn so với hầu hết các loại trái cây. ...
Quả táo. ...
Quả mâm xôi. ...
Quả chuối. ...
Cà rốt. ...
Củ cải đường.
write a java program that prompts the user to enter scores (each number an integer from 0 to 10) and prints the following output: how many scores entered the highest score the lowest score the average of all the scores the average with the highest and lowest score not counted if the user enters less than 3 scores print an error message instead of the output above
Answer:
Explanation:
The following is written in Java. It continues asking the user for inputs until they enter a -1. Then it saves all the values into an array and calculates the number of values entered, the highest, and lowest, and prints all the variables to the screen. The code was tested and the output can be seen in the attached image below.
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Scanner;
class Brainly {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
int count = 0;
int highest, lowest;
ArrayList<Integer> myArr = new ArrayList<>();
while (true) {
System.out.println("Enter a number [0-10] or -1 to exit");
int num = in.nextInt();
if (num != -1) {
if ((num >= 0) && (num <= 10)) {
count+= 1;
myArr.add(num);
} else {
System.out.println("Wrong Value");
}
} else {
break;
}
}
if (myArr.size() > 3) {
highest = myArr.get(0);
lowest = myArr.get(0);
for (int x: myArr) {
if (x > highest) {
highest = x;
}
if (x < lowest) {
lowest = x;
}
}
System.out.println("Number of Elements: " + count);
System.out.println("Highest: " + highest);
System.out.println("Lowest : " + lowest);
} else {
System.out.println("Number of Elements: " + count);
System.out.println("No Highest or Lowest Elements");
}
}
}
Select the scenario that describes a top-down approach to data warehouse design.
Cathy’s Cards and Gifts, which has three stores, creates data marts for its sales, marketing, and delivery departments to study the possibility of establishing a new store.
Crawford's Fabrics, which wants to expand its operations, combines data from the purchasing and sales departments into a central database, to be divided into new data marts as needed.
Cynthia’s Florals, which is dealing with debt, creates new data marts for the service, delivery, and sales departments to develop a strategy to stay in business.
Connor’s Meat Market, which just opened, creates data marts to track the sale of each of the following meats: beef, pork, lamb, and fish.
Answer:
Crawford's Fabrics, which wants to expand its operations, combines data from the purchasing and sales departments into a central database, to be divided into new data marts as needed.
The scenario defines a top-down approach to data warehouse design as "Crawford's Fabrics, which wants to expand its operations, combines data from the purchasing and sales departments into a central database, to be divided into new data marts as needed".
What is a top-down approach to data warehouse design?In the "Top-Down" method system, a data warehouse exists defined as a subject-oriented, time-variant, non-volatile, and integrated data storage for the entire business data from various sources exist validated, reformatted, and saved in a normalized (up to 3NF) database as the data warehouse.
Therefore, the correct answer is option b) Crawford's Fabrics, which wants to expand its operations, combines data from the purchasing and sales departments into a central database, to be divided into new data marts as needed.
To learn more about warehouse design
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What Causes #### error?
Answer:
The answer is below
Explanation:
Causes of ####error in Microsoft Excel can be traced to multiple sources. The major causes of #### error in Microsoft Excel, however, are the following:
1. When the column is not wide enough to show all values or figures of the cell contents.
2. When there are too many decimal places of the figure in a cell
3. When the date value in the cell is negative
4. When the time value in the cell is negative.
Write a function named square_list that takes as a parameter a list of numbers and replaces each value with the square of that value. It should not return anything - it should mutate the original list.
Answer:
The function is as follows:
def square_list(myList):
for i in range(len(myList)):
myList[i] = myList[i]**2
print(myList)
Explanation:
This defines the function
def square_list(myList):
This iterates through the list elements
for i in range(len(myList)):
This squares each list element
myList[i] = myList[i]**2
This prints the mutated list
print(myList)
who is considered as the father of computer science?
Charles Babbage is known as father of computer science because he designed the original programmable computer .
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Write a program named lastname_firstname_cities.py that works with information about large cities. Your program will open the cities.txt downloadfile. Each line in the file has the name of a city, its country, and its population. The first few lines of the file look like this:
Answer and Explanation:
Open your text editor and open new file. Save new file file as lastname_firstname_cities.py. The program will open the file cities.txt downloadfile hence :
dfile= open(cities.txt, "r")
If we write this into our lastname_firstname_cities.py file it will open our cities.txt downloadfile in read mode and text mode(by default unless we specify binary mode which is for images)
Select the correct statement(s) regarding IP addressing.
a. IPv4 and IPv6 addressing is fully compatible with one another.
b. CIDR address format represents a Class C network only used within an intranet.
c. Subnet masks are used with both class and classless IP addresses.
d. all statements are correct.
Subnet masks are used with both class and classless IP addresses is the correct statement. Therefore, the correct option is C.
What is an IP address?A device on the internet or a local network may be identified by its IP address, which is a special address. The rules defining the format of data delivered over the internet or a local network are known as “Internet Protocol,” or IP.
Only C is correct, rest other statements are incorrect because:
a. IPv4 and IPv6 addressing is fully compatible with one another is incorrect. While IPv4 and IPv6 can coexist on the same network, they are not fully compatible with one another.
b. CIDR address format represents a Class C network only used within an intranet is incorrect. Classless Inter-Domain Routing (CIDR) is a technique used to allocate IP addresses more efficiently.
Therefore, subnet masks are used with both class and classless IP addresses is the correct statement. Therefore, the correct option is C.
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Why are data silos problematic?
Answer:
Hampers collaboration
Resource wastage
Lack of data integrity
Explanation:
Data silos comes into play When different departments of an orgainiziations independently collects data needed for its operations. The finance, HR, administrative departments and so on collects their data and keeps it to themselves. As a result there is a repetitive and needless gathering and storage of already existing data, that is the data required by one group will have to be gathered again while it currently exists with another group. This leads to inefficient resource management and wastage. This practice also leads to data integrity as data stored differently across departments becomes inconsistent and less accurate over time. Team work and collaboration is gradually eroded as each group continues to hold on to its resources which poses a problem towards organizational growth.
If you are to enhance the ICT used by your teachers, how will ypu do it? Will you use the same ICT or will you modify how it was integrated?
To enhance the ICT (Information Communication Technology) used by teachers, I will modify how the ICT was integrated.
The modification of how ICT is integrated will change the culture that places teaching over technology. Then, teachers will be taught how to use ICT to:
improve learning so that teachers become learning facilitatorsmotivate learners by fostering learning autonomy, making students less dependent on the teacherengage the learners by creating collaborative learningdiminish content learning so that students learn to think, create, and communicate effectivelymake learning a lifetime culture enhance the learning environment so that teachers become collaborators and co-learners with students.Thus, I will enhance the ICT used by teachers by modifying its integration to achieve better results for both teachers and learners.
Learn more about the importance of ICT here: https://brainly.com/question/13724249
Chất xơ có nhiều trong thực phẩm nào?
Answer: rau củ quả đều có lượng chất xơ nhiều hơn so với các loại thực phẩn khác
Explanation:
can somebody help what's wrong with this code
asap~
Answer:
There's a + missing to concatenate your variable to your string.
I think you have been doing a great job but you haven’t been signing many people up for our new service feature I want you to set a goal of signing up 25% of your new customers for our new service feature if I get 96 new customers that means I have to get how many of them to sign up
Answer:
24 customers
Explanation:
Given
[tex]Customers = 96[/tex]
[tex]p = 25\%[/tex] --- proportion to sign up
Required
The number of customers to sign up
This is calculated as:
[tex]n = p * Customers[/tex]
So, we have:
[tex]n = 25\% * 96[/tex]
[tex]n = 24[/tex]
Explain the purpose of the open() and close() operations.
Answer:
The open() operation notifies the system that the named file is about to become active. The close() operation notifies the system that the named file is no longer in active use by the user who issued the close operation.
What is the easiest way to deploy a C++ program to a user’s computer? a. Copy the source code to the user’s computer and then compile it b. Create a batch file that copies the program to the user’s computer and then run it c. Copy the executable file to the user’s computer d. Create an installer program and then run it on the user’s computer
Answer:
c. Copy the executable file to the user’s computer
Explanation:
When you run a c++ program, an executable file (.exe) is created in the same directory with the source file.
To deploy this program on another system, you need to transfer the executable file from the original system where the program was executed to the new system.
The program will work fine without errors.
However, do not mistake the executable file for the source file. The source file ends in .cpp.
Create a class, CallClass, with two methods to show call by value and call by reference. One method has two parameters that are any primitive types, whereas the other has a parameter that is an object of any class. Create a CallClassTest class that calls the two methods with proper arguments to show call by value and call by reference. You do not need to read the values of parameters from the screen. (5 pts)
Answer:
The output file is given below.
Explanation:
Please visit gotit-pro.com to get complete working code.
Which one is the result of the output given by a computer
I
Explanation:
Instruction , data and information all of these.The program is the set of instructions a computer obeys
Answer:
True
Explanation:
a program is basicly just a list of commands you can run over and over again.
consider l= 5 ,r= 11. you must determine the sum of the values of the function in the range L to R . you have to calculate sum = lrf(x) in python coding
def summation (num1, num2):
i = 0
for x in range (num1 : num2 + 1):
i += x
return i
print ( summation(l, r))
. Write programming code in C++ for school-based grading system
Explanation:
The grade must be calculated based on following pattern:
Average Mark RangeGrade91-100A181-90A271-80B161-70B251-60C141-50C233-40D21-32E10-20E2
Calculate Grade of Student in C++
To calculate grade of a student on the basis of total marks in C++ programming, you have to ask from user to enter marks obtained in 5 subjects. Now add marks of all the 5 subjects and divide it by 5 to get average mark. And based on this average mark, find grade as per the table given above:
// C++ Program to Find Grade of Student // -------codescracker.com------- #include<iostream> using namespace std; int main() { int i; float mark, sum=0, avg; cout<<"Enter Marks obtained in 5 Subjects: "; for(i=0; i<5; i++)
Kamal plans to offer new, more favorable contracts to business customers who are now receiving a discount and use wireless services. Determine whether each customer should receive a new contract as follows:
a. In cell 15, enter a formula using the AND function that tests whether the Wireless value is equal to "Y" and whether the Discount value is equal to "Y".
b. Fill the range 16:118 with the formula in cell 15.
Solution :
'AND" operation is a logical operation and is used in logical connective combining two statements and in truth tables.
Using AND operation verifies whether the outcome P and Q is true only when both the P as well as Q are true. If one of the P or Q is not true, then outcome result will be false.
In the context, Kamal wishes to offer a new and more favorable contracts to the business customers who use a wireless services and receive a discount.
Therefore, using the AND operation of the customers as :
Customer Wireless Discount Outcome
A N N FALSE
B Y N FALSE
C N Y FALSE
D Y Y TRUE
Pick a web browser (a leading one or perhaps a lesser-known one that you use) and examine the Privacy and Security features and settings. These can usually be found in the settings/options area of the browser. Identify the web browser you are analyzing and answer the following questions/prompts:
1. List and explain/discuss the privacy and security features that the browser has to offer.
2. How do these privacy and security features protect individuals?
3. How do these privacy and security features affect what businesses can do on the Internet in terms of gathering customer data?
Solution :
Chrome web browser
The Chrome web browser uses a range of privacy and security settings for its customers. They include several security indicators as well as malware protection. Chrome uses the sandboxing technology, which prevents the harmful viruses and Trojans from reaching the computers.
Chrome provides a safe browsing by giving us an alert whenever we try to browse some harmful web sites. It also warns you if we use a username and password combination which has been compromised in any data leak.
Chrome also serves to protect the individuals :
It provides a features of Ad blocking.
When we want to browse safely without being recognized or without storing any credentials, Chrome provides an Incognito mode.
Many businesses can be done on the internet using Chrome platform that is safe and authenticate to gather and collect data and information.
Write a C program that will load entries from a file containing details of books and prints them.
Program Requirements:
a. Load file containing details of books
b. Print out all the books Required approach:
1. Design a struct/class that can hold the details of an individual book.
2. Dynamically allocate an array of these objects. The size should be the number of book entries from the input file given by the user.
3. Load all of the book entries into this array of objects before printing
Answer:
........
Explanation:
Type the correct answer in the box. Spell all words correctly.
Which testing requires coding the test cases into a scripting language?
testing requires coding the test cases into a scripting language.
Answer:
sorry I forgot it
Explanation:
because I am now in a last position
Differentiate between TCP Reno and TCP Tahoe.
Answer:
They have different words
Explanation:
I hope it helps choose me the brainest
Fit a boosting model to the training set with Purchase as the response and the other variables as predictors. Use 1,000 trees, and a shrinkage value of 0.01. Which predictors appear to be the most important
Answer and Explanation:
For the training set consist of 1000 observations, let's have a set consist of the observations such as sets.seed train boost.caravan gbm(Purchase., data = Caravan.train , distribution = "gaussian" , n trees = 1000 summary(boost.caravan) The tree classification such as tree(formula = Purchase data - train where variable are used in tree construction and number of terminal nodes 0 and deviance is 0.7 and error is 0.165
code bãi gửi xe siêu thị thì được viết như nào?cho em xin ví dụ vs ạ?
Answer:
https://sharecode.vn/source-code/phan-mem-gui-xe-dua-tren-cong-nghe-nhan-dien-bien-so-qrcode-20588.htm
I connected to an external hard drive to transfer some photos from my vacation. When I try to drag the photo, it bounces right back and does not transfer. What is the likely cause of this issue?
a. hard drive is full
b. photos were taken in a different country
c. USB port is broken
d. the file structure of the 2 hard drives are not compatible
The answer is D, What is the likely cause of this issue is that the file structure of the two hard drives are not compatible.
The file structure or file system, of a hard drive, tells the disk how to read, write and store information on the drive. Some file systems do not allow the disk to store any files and often do not display error messages. If we try to drag a file onto a hard drive with this kind of file structure, the action would simply not be performed. This can be fixed by formatting the disk partition into a new file system.
Option B states that the issue may be that the photos were taken in a different country. This is not the cause of the problem because regardless of where the pictures are taken, they are all stored in common formats such as:
JPEGPNGJFIFAny external hard drive capable of storing images will have the ability to receive files in these formats as well as many other image formats. For this reason, option B is False.
The question states that you were able to connect the external Hard drive and drag files onto it, though unsuccessfully. This tells us that the USB port is working as intended, if it were not working, it would not display the Hard drive onto the computer and we would not be able to drag files to it. Therefore, option C is false
Insufficient Hard drive storage space is a common issue in not being able to transfer files between hard drives. However, if this were the case, the user would be shown a message displaying the error. The message may look like:
"Insufficient space on the disk.""The Disk is full.""Not enough memory to complete this action"The exact wording may vary depending on the operating system in use. Since the question states that the files simply "bounces back" without an error message displaying, we can infer that option A is false.
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