Lists are used in Python to hold multiple values in one variable
(a) Nested list
A nested list is simply a list of list; i.e. a list that contains another list.
It is also called a 2 dimensional list.
An example is:
nested_list = [[ 1, 2, 3, 4] , [ 5, 6, 7]]
(b) The “*” operator
The "*" operator is used to calculate the product of numerical values.
An example is:
num1 = num2 * num3
List slices
This is used to get some parts of a list; it is done using the ":" sign
Take for instance, you want to get the elements from the 3rd to the 5th index of a list
An example is:
firstList = [1, 2 ,3, 4, 5, 6, 7]
secondList = firstList[2:5]
The “+=” operator
This is used to add and assign values to variables
An example is:
num1 = 5
num2 = 3
num2 += num1
A list filter
This is used to return some elements of a list based on certain condition called filter.
An example that prints the even elements of a list is:
firstList = [1, 2 ,3, 4, 5, 6, 7]
print(list(filter(lambda x: x % 2 == 0, firstList)))
A valid but wrong list operation
The following operation is to return a single list, but instead it returns as many lists as possible
def oneList(x, myList=[]):
myList.append(x)
print(myList)
oneList(3)
oneList(4)
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I really need help with this question! Please help!
Answer:
(C) Emma goes to sleep late and does not set an alarm.
Explanation:
Decomposing a problem is setting a back drop inference as to (WHY?) something happens . So Emma woke up late , the only reasonable (WHY?) in this question would be (C)
In the context of the data administration component of a database management system (DBMS), the acronym CRUD stands for _____.
CRUD is an acronym in database management system (DBMS) that stands for Create, Read, Update, and Delete.
CRUD is an acronym in database management system (DBMS) that stands for Create, Read, Update, and Delete. It is the four basic functions of persistent storage.
CRUD operations are foundation operations every database developer and administrator needs to understand.
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When using wildcards and the matching case option, which of the following would not be found by entering on in the Find dialog box?
1. den
2. down
3.Dayton
4. documentation
There are different types of Wildcard. The option that would not be found by entering on in the Find dialog box is called Dayton.
Wildcard is commonly known wild character or wildcard character. It is known as a symbol that is often used in place of or to stand for one or more characters.
Some wildcards are;
The asterisk (*)The question mark (?) Percent ( % )Wildcards are said to be universally used. Dayton cannot be found because it is not a wildcard but a name of a person.
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Which of the following is an example of power redundancy?
UPS
Backup server
RAID
Fault tolerance
write a short paragraph (three to four sentences) that explains how it works for computers and internet communications in relation to cybersecurity.
Answer:
Public and private keys form the basis for public key cryptography, also known as asymmetric cryptography. In public key cryptography, every public key corresponds to only one private key. Together, they are used to encrypt and decrypt messages. If you encode a message using a person’s public key, they can decode it using their matching private key.
Explanation:
Change up the wording.
explain the use of mail merge feature.
pls help
Write a Boolean expression that tests if the value stored in the variable num1 is equal to the value stored in the variable num2.
Answer:
num1 = int(input("Enter value: "))
num2 = int(input("Enter value: "))
if num1 == num2:
print("Equals.")
else:
print("Unequal.")
Explanation:
The Boolean expression that tests if the value stored in the variable num1 is equal to the value stored in the variable num2 can be found in explanation.
What is boolean expression?A logical statement that could be either true or false is referred to as a Boolean expression.
As long as both parts of the expression have the same basic data type, Boolean expressions can compare data of any type. Data can be tested to see if it is the same as, greater than, or less than other data.
A Boolean expression is a type of expression used in programming languages that produces a Boolean value when evaluated. A Boolean value can only be true or false.
The boolean expression for the given scenario can be:
num1 = int(input("Enter value: "))
num2 = int(input("Enter value: "))
if num1 == num2:
print("Equals.")
else:
print("Unequal.")
Thus, above mentioned is the program for the given code.
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Consider that a man is watching a picture of a Black Horse. He receives an external stimulus from input channel. Man gains some information about the picture from external environment and stores it in the memory. Once the initial information is gained, it is compared with the memory and then stores it. Finally upon perceiving and storing the information in memory Man says that the picture contains Black horse.
Based on the information-processing model, cognition is conceptualized as a series of processing stages where perceptual, cognitive, motor processors are organized in relation to one another.
You are required to identify and elaborate that which cognitive processes i.e. Perceptual system, Cognitive system, and motor system are involved when man interacts with the picture and also that which input channel is responsible in taking information to the brain.
The first Cognitive Process that was in play according to the excerpt is Perceptual System. It is also called Perceptual Representation and Intelligence.
This function of the brain is responsible for the sensory input which may be auditory (sounds), visual (pictures), and kinesthetic (emotions or feelings).
So the Perceptual Cognitive system (visual) relays the input (image of the horse to his brain, then it is stored.
This next stage is handled by the memory. Memory (a crucial process for learning) is a cognitive function that enables us to code, store, and recover information from the past.
Notice that the man perceived the information, and as the input interacts with the memory, he is able to say that the image or picture contains a black horse because there is a recall function.
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_____ are extremely _____ data structure’s, used all the time, and there are so many _____ that can handle them to do useful things.
A _____ can be thought of as an array of arrays
•versatile
•functions
•arrays
•matrix
Answer:
arrays are extremely versatile data structure’s, used all the time, and there are so many functions that can handle them to do useful things.
A matrix can be thought of as an array of arrays
Answer:
Arrays are extremely versatile data structure's, used all the time, and there are so many functions that can handle them to do useful things.
A matrix can be thought of as an array of arrays.
Happy Holidays
Explanation:
Your job is to protect your company's information assets. What security objectives
should you address?
1) Assets, liabilities, and threats
2) Common vulnerabilities and exposures
3) Confidentiality, integrity and availability
4) Risks, threats and vulnerabilities
Answer:3
Explanation: The CIA Triangle is the basis of all Security related needs.
How do I open a letter doc in my documents in my documents folder?
What type of databases is not limited by the data’s physical location?
Which type of research source lets a technical writer observe how a product works?
Answer:
Research to Support Your Technical Communication
As a buyer for a clothing retailer, for example, you might need to conduct research to help you determine whether a new line of products would be successful in your store. As a civil engineer, you might need to perform research to determine whether to replace your company's current surveying equipment with 3D-equipped stations. And as a pharmacist, you might need to research whether a prescribed medication might have a harmful interaction with another medication a patient is already taking
Explanation:
Hope it helps
Please mark as brainliest
Matching parentheses. An math expression may have a number of parentheses like (, ), [, ], { and }. Each openning parenthesis (, or [, or { must be macthed by a corresponding closing parenthsis ), or ] or }. For example, 12 { 34 / [ 6 * ( 55 - 10 ) / ( 100 20 ) ] } has matched pairs of parentheses, while 12 { 34 / ( 6 * ) ] } does not. Write a function to check whether an input math expression has matched parentheses. The header of the function is given as follows:
bool match( const char exp [ ], const int s);
The input math express is store in the char array exp, and the size of exp is s. It returns true if all parentheses are matched or false otherwise.
Please hurry, it's a test! 30 POINTS. :)
What computing and payment model does cloud computing follow?
Cloud computing allows users to_____ computing resources and follows the ______
payment model.
1. Buy, Own, Rent, Sell
2. pay-as-you-go, pay-anytime-anywhere, pay-once-use-multiple-times
Apart from using secure networks, how else can Dhruv keep his deliverables safe in the office and on the go? Select all that apply.
It should be noted that data can be secured when working in the following way:
Establishing a cyber security policy.Using two-factor authentication.Keeping passwords strong.Using secure internet connections.Your information is incomplete. Therefore, an overview relating to the topic will be given. It should be noted that as telecommuting becomes a standard practice, the challenge regarding data security increases.
Employers should educate their employees about data security. The workers should know that data security is a priority and that all the internet connections are secure.
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I wake up the computer and remind it what to do
Answer:
what's the question or answer you want or is it a joke?
Explanation:
Write a python program to calculate the sum of three numbers and as well require the user to input the numbers.
Answer:
numbers = []
for i in range(3):
numbers.append(eval(input("Enter number: ")))
print('Sum is:', sum(numbers))
Explanation:
You want to use a loop to prevent repeating your code.
Answer:
numbers = []
for i in range(3):
numbers.append(eval(input("Enter number: ")))
print('Sum is:', sum(numbers))
- Are you interested in modern technology? Why/why not?
Answer:
yes
Explanation:
cause it is very intrested
LIKE sitting in the house and turning on your car and alexa all the stuff
Which statement, if any, about Boolean is false?
a. They are all true.
b. Boolean is one of the four data types.
c. All expressions in python have a Boolean value.
c. The Boolean values are True and False.
Answer:
A.
Explanation:
Write a program to repeatedly read integers from the standard input until it reads "-1" and exits. For each number before "-1," if it is positive and odd, do the following:
Answer:
#include <stdio.h>
int main() {
int p=0, n=0, z=0, inp=0;
printf("How do I write a C program to read numbers until -1 "
"is encountered and also count the number of positive, negative, "
"zeroes encountered by users using a while loop?\n\n\n");
printf("Enter an integer (-1 to quit): ");
scanf("%d",&inp);
while(inp != -1) {
if(inp > 0) p++;
else if(inp < 0) n++;
else z++;
printf("\nEnter next integer (-1 to quit): ");
scanf("%d",&inp);
}
n++; /* -1 is also a -ve number */
printf("You have entered ...\n");
printf("\t\tPositive numbers: %d\n",p);
printf("\t\tNegative numbers: %d\n",n);
printf("\t\t Zeroes: %d\n",z);
}
Explanation:
write down the application areas of an ICT?
Answer:
These are internet, telephone, mobile phone, TV, radio and office automation systems such as word-processing, fax, audio conferencing, video conferencing, computer conferencing, multimedia, etc, through the use of networks of satellite and fiber optics..
Explanation:
hope its help
Brainliest if correct. 3. You are researching ways to boost employee morale for a proposal. How can you
avoid copyright issues when you find materials from outside sources? (1 point)
what is operating system?
The software that supports a computer's basic functions, such as scheduling tasks, executing applications, and controlling peripherals.
BEBE
What options does the Table Tools Layout contextual tab contain? Select three options.
O modify text direction
change font
insert rows and columns
O add border and shading
O split table
Answer:
Modify text direction.change font, and insert row and coulumns
Explanation:
Answer:
What options does the Table Tools Layout contextual tab contain? Select three options.
modify text direction
insert rows and columns
split table
Explanation:
Consider the following declaration:
String s = "cat";
Which of the following statements assigns the number of characters in s to k?
A. int k = s.length;
B. int k = s.length();
C. int k = s.size;
D. int k = s.size();
Consider the following declarations:
String s1 = "apple";
String s2 = "apple";
What is the result of s1.compareTo(s2)?
A. true
B. false
C. 0
D. 1
Consider the following declarations:
String s1 = "apple";
String s2 = "APPLE";
Which of the following expressions is true?
A. s1.equals(s2) && s1.equalsIgnoreCase(s2)
B. !s1.equals(s2) && s1.equalsIgnoreCase(s2)
C. s1.equals(s2) && !s1.equalsIgnoreCase(s2)
D. !s1.equals(s2) && !s1.equalsIgnoreCase(s2)
Answer:
B, C, B
Explanation:
According to my understanding of these questions, these are in Java.
For the first one, there is a built in function called .length() for a string, so it's answer B.
For the second one, this should come out as C, 0 since compareTo compares the ascii values of the characters.
The third one's answer should be B. s1.equals(s2) for characters that are caps and not caps comes out with false, so ! would negate it. s1.equalsIgnoreCase(s2) would come out as true, ignoring the cases of APPLE.
Which type of transaction cannot be tagged at this time within Quickbooks online
The type of transaction cannot be tagged at this time within Quickbooks online is "Invoice Delayed Credit". The correct option is 4.
What is Invoice Delayed Credit?A delayed credit is a non-posting transaction that you can add to a client's invoice at a later time.
Reimbursing a customer's money involves posting a transaction known as a refund. The use of credit notes to reduce an outstanding customer amount follows from this. Delayed Credits are only permitted on invoices.
In QuickBooks Online, "Invoice Delayed Credit" transaction types cannot currently be tagged.
To aid with organization and tracking, QuickBooks Online users can assign labels or categories to bank deposits, purchase orders, journal entries, and other transactions.
The transaction type "Invoice Delayed Credit" cannot be labeled in QuickBooks Online, nevertheless. Instead, you can change the amount owed by applying a credit memo to an invoice.
Thus, the correct option is 4.
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Which type of transaction cannot be tagged at this time within QuickBooks Online?
Bank deposit O Purchase order O Journal entry O Invoice Delayed creditAn input statement is used to interact with the user of a program.
True False
Answer:
True.
Explanation:
An input statement asks a user a question, where the user has to input a value for the program to move forward. This means that yes, the program does interact with the user.
how to download film
list 3 things needed in order to complete mail merge process.
pls help me!