Consider the following method, which is intended to return the product of 3 and the nonnegative difference between two int parameters.
public int threeTimesDiff(int num1, int num2) {
return 3 * (num1 - num2);
}
Which precondition is required so that the method works as intended for all values of the parameters that satisfy the precondition?
A. num1 > 0, num2 > 0
B. num1 >= 0, num2 >= 0
C. num1 >= num2
D. num2 >= num1
Answers
Methods are code segments that are executed when called or evoked.
The required precondition for the method to work as intended is (c) num1 >= num2
The return value of the method is given as:
3 * (num1 - num2).
The return value is said to be non-negative.
So, the following condition must be true
\(3 \times (num1 - num2) \ge 0\)
Divide both sides of the equation by 3
\((num1 - num2) \ge 0\)
Remove the bracket
\(num1 - num2 \ge 0\)
Add num2 to both sides of the equation
\(num1 \ge num2\)
Hence, the required precondition for the method to work as intended is (c) num1 >= num2
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Related Questions
What are objectiveswhat are objects, such as buttons, menus, and labels, that can display and respond to user interaction, called?
Answers
The objectives such as buttons, menus, and labels, that can display and respond to user interaction, called Controls.
what is objects?The definition of an objective is a goal or something to aim for.An example of an objective is a list of items to achieve during a meeting noun. Once a core goal is set, developing business objectives is the next step toward fostering a clear knowledge of how to reach the desired outcome. The main distinction between objectives and goals is that objectives are precise steps or measurable steps someone and companies take to move nearer to the goal.They are clear targets that generally have a time-bound plan or timeline for completion.To learn more about Controls, refer to:
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Perform binary calculation: 110111 +101011) X 11
Answers
Answer:
10000110110
Explanation:
\(110111 +\\101011\)
______
1100010
1100010 × 2 is the same as \(1100010+\\1100010\) = 11000100
11000100 × 2 is the same as \(11000100+\\11000100\) = 110001000
110001000 × 2 is the same as \(110001000+\\110001000\\\) = 1100010000
\(1100010000\\11000100\\1100010+\\\)
_______
10000110110
By buying in bulk, Deborah managed to have 6,000 CDs manufactured for $9,000. What was the cost per unit for manufacturing?
Answers
Answer: It would be $1.50 per unit
Explanation
Borrowing other images and videos are allowed as long as ________?
Answers
Answer:
as long as there appropriate
Describe in 2–3 sentences how you would use the autosum shortcut.
Answers
Autosum is an easy and fast way to add values in the Excel sheet. This feature is used in MS office.
A list of numbers when given for adding the values, we used to use addition function or Autosum shortcut in the Ms Excel.
When this Autosum shortcut is not in use, user can find the addition of values by using equal sign following by the addition process.
Or we can say, = Row 1 + Row 2.
Autosum can be available in the Home or formula tabs.
The shortcut for using an Autosum feature in Excel is Alt+=.
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Answer:
Explanation:
Adding values to an Excel sheet is simple and quick with autosum.
The Home or Formula tabs may both contain this.
Alt+= is the keyboard shortcut for Excel's aAutosum feature.
1. Question
a) A RC circuit in a welding robot operational system has been modelled with a Laplace transfer function as Y(s)/U(s) k /Ts+1 Explain the names and roles of k and T.
[3 Marks]
b) Derive the time response () to an input ()-5 by taking inverse Laplace transform of the output transfer function Y(s).
c) Determine the value of (=T,k=1) and explain the meaning of the output amplitude against the time instant.
d) Determine the steady output y( t = ) and prove this is consistent with that obtained from using the final value theorem.
e) Determine the corresponding frequency response transfer function G(j) in terms of amplitude ratio and phase angle. Then sketch the asymptote Bode plots.
f) Briefly explain why a Laplace transfer function model needs to be used to replace differential equations in control engineering applications. (less than 30 words).
Answers
Laplace transfer function simplifies analysis, transforms time-domain to frequency-domain in control engineering.
Derive the time response y(t) to an input u(t) = -5 by taking the inverse Laplace transform of the output transfer function Y(s).In the Laplace transfer function Y(s)/U(s) = k/(Ts + 1), k represents the gain or amplification factor of the system, while T represents the time constant. The gain (k) determines the output magnitude relative to the input, while the time constant (T) represents the rate at which the system responds to changes in the input.
To derive the time response (y(t)) to an input (u(t) = -5), we need to take the inverse Laplace transform of the output transfer function Y(s).
For the given values of T and k (T = 1, k = 1), the meaning of the output amplitude against the time instant refers to how the output (y(t)) changes in magnitude over time in response to the input. It indicates how the system behaves and how its output is influenced by the input.
To determine the steady output y(t=∞), we can use the final value theorem. By taking the limit as s approaches 0 of sY(s), we can obtain the steady-state value. Proving consistency with the final value theorem ensures that the steady output matches the expected value based on the system's transfer function.
The corresponding frequency response transfer function G(j) can be obtained by substituting s with jω in the Laplace transfer function.
By expressing G(j) in terms of amplitude ratio and phase angle, we can understand how the system responds to different frequencies. Sketching the asymptote Bode plots provides a graphical representation of the system's frequency response.
A Laplace transfer function model is used to replace differential equations in control engineering applications because it simplifies the analysis and design of control systems.
It allows for mathematical manipulation and transforms the time-domain behavior of the system into the frequency-domain, providing insight into stability, performance, and response characteristics.
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What type of programing code do game developers use.
Answers
Explanation:
object oriented programming languages like C#, C++, Java are used by developers to develop a game.
Today's ERP systems are often integrated with _____ to provide end-to-end support for the production/manufacturing process. A) CRM B) SCM C) WMS D) All of the above
Answers
Today's ERP systems are often integrated with SCM (Supply Chain Management) and WMS (Warehouse Management System) to provide end-to-end support for the production/manufacturing process.
SCM integration ensures that the production process is closely linked to the supply chain activities, from sourcing of raw materials to delivering finished products to customers. WMS integration, on the other hand, helps in managing inventory and warehouse operations, including tracking and managing the movement of goods within the facility. This ensures that the right inventory is available at the right time for production and that finished goods are delivered on time to customers. While ERP systems may also be integrated with CRM (Customer Relationship Management), this integration is primarily focused on sales and marketing activities and may not have a direct impact on the production process. Therefore, the correct answer to the question is B) SCM and C) WMS.
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what does it mean when programmers say tables are not normalized?
Answers
When programmers say that tables are not normalized, it means that the structure of the database is not organized in a way that minimizes data redundancy and dependency. In simpler terms, it means that the database has unnecessary data duplication or that the data is not organized optimally.
Normalization is a process of structuring a database so that it follows certain rules. These rules help to minimize redundancy, improve data integrity, and simplify data retrieval. There are different levels of normalization, from first normal form (1NF) to fifth normal form (5NF), each with specific rules that must be followed.When a table is not normalized, it may contain duplicated data, which can lead to inconsistencies, errors, and problems with data integrity. For example, if a customer's information is duplicated in several tables, it can be difficult to update that information in all the relevant places. Additionally, if a change is made to one instance of the data, the other instances may become out of date or inconsistent.To explain further, let's take an example of an online store. Suppose the store has a table for customer information that contains columns for customer name, address, phone number, and email. Additionally, there is another table for orders that contains columns for order ID, customer name, product ID, and order date.Now, suppose a customer places multiple orders, resulting in their name appearing multiple times in the orders table. This redundancy can be problematic for a number of reasons. Firstly, if the customer's information changes (e.g. they move to a new address), it will need to be updated in multiple places. This can be time-consuming and error-prone. Secondly, if a customer's name is spelled differently in different instances (e.g. "John Smith" vs. "Jon Smith"), it may be difficult to query the database accurately.To normalize this database, we can create a separate table for customer information and link it to the orders table using a foreign key. This way, each customer's information is stored only once, and any updates to that information will be reflected in all relevant places.
In summary, normalization is an important process for ensuring data consistency and integrity in a database. When programmers say that tables are not normalized, it means that the structure of the database needs to be optimized to minimize redundancy and dependency. The main answer to your question is that when programmers say tables are not normalized, it means the database tables have not been structured optimally to reduce redundancy and improve data integrity.Database normalization is a process of organizing the columns and tables in a relational database to minimize data redundancy and improve data integrity. Normalization involves splitting larger tables into smaller, more manageable tables and establishing relationships between them using primary and foreign keys. There are several levels of normalization, known as normal forms (e.g., 1NF, 2NF, 3NF, etc.). Each normal form builds upon the previous one, further refining the database structure. When tables are not normalized:
There may be duplicate data or redundancy in the table, which can lead to increased storage requirements, slower query performance, and potential inconsistencies.Insert, update, and delete operations may become more complex due to the redundant data.The risk of data anomalies increases, making it more difficult to maintain data integrity.To normalize a database, programmers follow a series of rules or guidelines, progressively refining the table structure and ensuring that it adheres to the desired normal form.
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Which tab houses the Spelling feature
O File tab
O Home tab
O View tab
O Review tab
Answers
Answer:
Review tab
Explanation:
I got it right
Answer:
Review tab
Explanation:
A professional photographer working for a top newspaper would like control over the quality and editing
process of digital photos. Which file format should be used on the digital camera to ensure the
photographer has this flexibility?
A. AI
B. JPEG
C. RAW
D. SVG
Answers
Answer:
RAW
Explanation:
raw usually gives you the best quality possible and its easy to go through the editing process with flexibility compared to the other options.
Answer: raw
Explanation: got a 100%
Fill in each blank with the correct answer/output.
int[] vals = {7,5,3,9,0,37,93,16,68,6,99};
System.out.println(vals[vals[1]+vals[4]]);
Answers
Answer:
37
Explanation:
Given int[] vals = {7,5,3,9,0,37,93,16,68,6,99};
In programming, the position of each value in the list are known as index. The first value is always assigned index of 0 not 1, the second value is assigned index of 1 and so on. For example;
val[0] = 7 i.e value with index 0
val[1] = 5
val[4] = 0
In order to print out this value
System.out.println(vals[vals[1]+vals[4]]);
Substituting the index value val[1] and val[4] into the argument given
vals[vals[1]+vals[4]]
= vals[5+0]
= vals[5]
= 37 (value at the 5th index)
System.out.println(vals[vals[1]+vals[4]]);
= 37
This means that the system will print out 37 to the console
suppose a function has a parameter named x, and the body of the function changes the value of x. if we do not want the change affect to the original x, what type of parameter x should we use?
Answers
Answer: It should be a value parameter.
What are the revised versions of water grinding mill and horse cart
Answers
how to tell if your cell phone is being tracked tapped or monitored by spy software?
Answers
Other devices then i would recommend downloading a spyware app that will monitor your device
Hey i need some help with code.org practice. I was doing a code for finding the mean median and range. the code is supposed to be including a conditional , parameter and loop. I'm suppose to make a library out of it and then use the library to test the code? please help!
here is the link to the code.
https://studio.code.org/projects/applab/YGZyNfVPTnCullQsVFijy6blqJPMBOgh5tQ5osNhq5c
P.S. you cant just type on the link i shared you have to click view code and then remix to edit it. thanks
Answers
Answer:
https://studio.code.org/projects/applab/YGZyNfVPTnCullQsVfijy6blqJPMBOgh5tQ5osNhq5c
Explanation:
What can we do to positive interaction online?
Answers
Answer:
We can help eachother out with things.
Explanation:
Eg. Schoolwork and homework because our stress level will decrease.
Write a program named TestScoreList that accepts eight int values representing student test scores.
Display each of the values along with a message that indicates how far it is from the average. This is in C#
Answers
CODE;
namespace TestScoreList
{
class Program
{
static void Main(string[] args)
{
//Declare variables
int[] scores = new int[8];
int sum = 0;
double average;
//Get user input
Console.WriteLine("Enter 8 test scores:");
for(int i = 0; i < 8; i++)
{
scores[i] = int.Parse(Console.ReadLine());
sum += scores[i];
}
//Calculate the average
average = (double)sum / 8;
//Print results
Console.WriteLine("Test scores:");
for(int i = 0; i < 8; i++)
{
Console.WriteLine($"Score {i+1}: {scores[i]} (Difference from average: {scores[i] - average})");
}
}
}
}
What is Code?
Code is a set of instructions written in a specific programming language that tells a computer how to perform a task or calculate a result. It is the fundamental language of computers, and is used to write software, websites, and mobile applications. Code is comprised of instructions that are written in a logical, structured order, and can be used to create programs that control the behavior of a machine or to express algorithms.
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anyone pls answer this!!!!!!thanks ^-^
Answers
Answer:
True
False
False
False
Explanation:
HTML isnt a scripting a scripting language it's a markup language
There are 6 levels of HTML
An empty tag only has a starting tag
Someone hacked into an employee's computer and erased all of their data. All data for the past three weeks was lost as that was when the employee last performed a backup. Which type of network is the company more than likely using?
Answers
WWW/ World Wide Web.
Read each example from the opening of a speech on the topic of video gaming. Identify the type of hook being used According to a recent study, the average American teenager spends nine hours a week playing video games. Too many students are spending too much time playing video games. Once, I played video games for so long that my fingers cramped up, and I couldn't write for a week! Excessive video gaming has "been linked by many studies to aggressive behavior,' according to a 2012 news героrt. 7
Answers
Answer:
it goes c, b, b, a
Explanation:
Pleaseeee Help.
Which describes cloud computing?
A. All devices are connected to each other through the internet.
B. A social network allows users to get to know people all over the globe.
C. Small businesses can grow by storing data on a remote server.
D. Information is stored on the user's computer.
Answers
Cloud computing is a paradigm that utilizes the Internet to store, manage and access data from a remote server on the internet, and in this users can learn about people all around the world through a social network.
This software infrastructure for applications that stores information over remote services, accessible over through the Internet.It uses middleware, a software to ensures proper connectivity between devices and computers connected via the cloud.Therefore, the final answer is "Option B".
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Answer:
Small businesses can grow by storing data on a remote server.
Explanation:
"Businesses can use a distant company's server to run their business. They do not need to invest in their own servers. Cloud computing involves infrastructure that is not owned or maintained by the user and is not at the user’s location. It does reduce costs and allows smaller businesses to compete in ways that they could not before, because of lack of resources. Cloud computing is available 24/7."
Edge 2022
Use the file format if you need to create macros in an Excel file.
Answers
Answer:
Use the xlsm file format if you need to create macros in an Excel file.
Explanation:
Answer:
EExplanation:
xlsm file1. (A+B)(B'+C)(C+A)
2. A'B'C'
3. (X+Y)(X'+Z)(Y+Z)
4. A'B'C'+A'BC'+A'BC+ABC'
Answers
you need to put your question
Which local group is used as a security measure to prevent sensitive passwords from being stored on rodcs'?
Answers
The local group used as a security measure to prevent sensitive passwords from being stored on rodcs is the "Denied RODC Password Replication Group".
The "Denied RODC Password Replication Group" is used as a security measure to prevent sensitive passwords from being stored on read-only domain controllers (RODCs). When this group is added to the "Password Replication Policy", it prevents the RODC from caching or replicating sensitive account credentials, such as passwords. This helps to ensure that only authenticated users with the appropriate permissions can access the sensitive data stored on the domain controllers. It is important to note that this group should only be used for accounts that do not require password caching or replication on RODCs, as it can cause issues with user authentication if used incorrectly.
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PLZ HELPP ME!!!
You are driving on a highway and your gas pedal gets jammed. You cannot reduce engine
power. You should keep your eyes on the road and
A: Stay in the gear you are in. Turn off the ignition, and remove the ignition key from the lock.
B: Shift into neutral. Then turn off the ignition without locking the steering, and use your brakes to
stop.
C: Shift your vehicle into top gear. Then apply the parking brake as hard as you can
Answers
Answer:
b
Explanation:
shift to neutral then use brakes
In pedal gets jammed, Shift into neutral. Then turn off the ignition without locking the steering, and use your brakes to stop.
What to do in the above case?If the vehicle that is its accelerator pedal is said to be stuck in case a person is driving, one can press the brake and also put their hands on the wheel and then shift the gear to neutral.
Conclusively, When your gas pedal gets jammed, by doing the above that is shifting your gear into neutral and turning off the ignition without locking the steering, one can use the brakes to come to a stable halt.
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what's the easiest way to access the properties of an object in windows?
Answers
The easiest way to access the properties of an object in Windows is by right-clicking on the object and selecting "Properties" from the context menu.
In Windows, objects such as files, folders, and applications have associated properties that provide information about them, including details like size, location, creation date, and permissions. To access these properties, simply navigate to the object you want to inspect, whether it's a file, folder, or shortcut, and right-click on it. In the context menu that appears, select "Properties. "Clicking on "Properties" will open a dialog box or window that displays various tabs or sections containing detailed information and settings related to the object.
These tabs or sections to view and modify properties specific to the selected object. By using the right-click and "Properties" option, you can conveniently access and manage object properties in Windows. By accessing the properties of an object, you can view and modify its attributes, permissions, file size, creation and modification dates, and other relevant information. It is a convenient way to gather detailed information about an object or make specific changes to its properties.
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Which file in linux would i need to modify in order for a local user to connect to a new site i created by just entering the site name in the browser
Answers
I attached my answer because Brainly wouldn't let me post it. It is important to be detailed since you are setting up a DNS server to do this.
The exclusive legal right given to an originator or creator to print, publish, perform, film, or record literary, artistic, or musical material and to authorize others to do the same is called
copyright
global plagiarism
plagiarism
unethical
Answers
Answer:
Copyright
Explanation:
copyright is “The exclusive and assignable legal right, given to the originator for a fixed number of years, to print, publish, perform, film, or record literary, artistic, or musical material.” A work is automatically protected by copyright from the moment it's created.
Answer:
Copyright
Explanation:
I did the test :>
Write a program that takes a decimal number from the user and then prints the integer part and the decimal part separately. For example, if the user enters 2.718, the program prints: Integer part = 2 and decimal part = .718 in python
Answers
Answer:
Explanation:
The following was coded in Python as requested. It is a function that takes in a number as a parameter. It then uses the Python built-in math class as well as the modf() method to split the whole number and the decimal, these are saved in two variables called frac and whole. These variables are printed at the end of the program. The program has been tested and the output can be seen below.
import math
def seperateInt(number):
frac, whole = math.modf(number)
print("Whole number: " + str(math.floor(whole)))
print("Decimals number: " + str(frac))
