A condition is true if it satisfies any value (one or more) produced by a subquery that is preceded by the EXISTS keyword.
In SQL, the EXISTS keyword is used to check whether a subquery returns any rows. It returns true if the subquery returns at least one row, and false otherwise. When the EXISTS keyword is used in a condition, it can be used to check if a value exists in a subquery result.
To use the EXISTS keyword, you can write your condition as follows:
- Write the subquery that produces the values you want to check.
- Precede the subquery with the EXISTS keyword.
- Include the condition you want to evaluate using the subquery results.
Here's an example:
SELECT *
FROM table_name
WHERE EXISTS (
SELECT *
FROM subquery_table
WHERE subquery_condition
);
In this example, the condition will be true if the subquery returns any rows that satisfy the subquery_condition. The condition will be false if the subquery returns no rows.
I hope this helps! Let me know if you have any further questions.
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What words are familiar to people involved with computers? printer network, mouse and monitor screen software
The words that are familiar to people involved with computers are network, mouse and monitor screen.
What is a computer?A computer simply refers to an electronic device that is designed and developed to receive data in its raw form as an input and processes these data into an output (information), which could be used by an end user to perform a specific task through the use of the following:
KeyboardNetworkMonitor screenMouseIn Computer technology, we can logically infer that network, mouse and monitor screen are the words that are familiar to people involved with computers.
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Answer:
B
Explanation:
network, mouse and monitor
1. The main objective of an infographic is to provide a compelling story through images and graphical elements while interpreting information. 2. You will create an infographic to mirror your Informat
An infographic is a visual communication tool that aims to present information in a compelling and easily understandable manner.
Both statements provide accurate descriptions of an infographic, but they highlight different aspects of its purpose and usage.
Statement 1: The main objective of an infographic is to provide a compelling story through images and graphical elements while interpreting information.
This statement emphasizes that the primary goal of an infographic is to visually communicate information in a compelling and engaging way.
Infographics use a combination of images, graphics, charts, and text to present data, facts, or concepts in a visually appealing and easily understandable format.
Statement 2: You will create an infographic to mirror your Informational Memo Report of the case you have worked on for this assignment.
This statement suggests the specific application of an infographic in the context of creating a visual representation of an informational memo report.
It implies that an infographic can be used as an alternative or supplementary medium to present the findings, analysis, and recommendations of a case study or research project.
By using an infographic, the creator can condense and simplify the content while still effectively conveying essential information and key insights.
In summary, an infographic is a visual communication tool that aims to present information in a compelling and easily understandable manner.
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What makes jambinai so unique (it’s for band)
Answer:
Jambinai combines Korean folk music instruments and rock music instrumentation, which creates a different music style.
Which type of mic is durable, versatile and does not rely on power?
Dynamic
B.
Decibals
C.
Ribbon
D.
Condenser
Answer:
Dynamic
Explanation:
Dynamic Mics are the workhorses of the microphone world. They're cheap, durable and sound fantastic on some of the most common sources in recording.
Hope this helps! :)
Answer:
Dynamic
Explanation:
They are cheap, versatile, durable, and doesnt rely on power
How to block text messages from email addresses iphone?.
Answer:
Go to Settings -> Messages, scroll down to "Message Filtering" section and click into "Unknown & Spam". Enable "Filter Unknown Senders" and SMS Filtering.
Explanation:
This should turn off iMessage notifications if the text comes from addresses that are not in your contacts, unless you have replied to it.
Complete the showClock() Function
Go to the tny_timer.js file and at the top of the file, insert a statement to tell the browser to apply strict usage of the JavaScript code in the file. Directly above the nextJuly4() function, insert a function named showClock() that has no parameters. Within the showClock() function, complete steps 1 through 7 listed below:
Declare a variable named thisDay that stores a Date object containing the date May 19, 2021 at 9:31:27 a.m.
Declare a variable named localDate that contains the text of the date from the thisDay variable using local conventions. Declare another variable named localTime that contains the text of the time stored in the thisDay variable using local conventions.
Within the inner HTML of the page element with the ID currentTime, write the following code date time where date and time are the values of the localDate and localTime variables.
Hector has supplied you with a function named nextJuly4() that returns the date of the next 4th of July. Call the nextJuly4() function using thisDay as the parameter value and store the date returned by the function in the j4Date variable.
The countdown clock should count down to 9 p.m. on the 4th of July. Apply the setHours() method to the j4Date variable to change the hours value to 9 p.m.
Express the value for 9 p.m. in 24-hour time.
Create variables named days, hrs, mins, and secs containing the days, hours, minutes, and seconds until 9 p.m. on the next 4th of July.
Change the text content of the elements with the IDs dLeft, hLeft, mLeft, and sLeft to the values of the days, hrs, mins, and secs variables rounded down to the next lowest integer.
Call the showClock() Function
Directly after the opening comment section in the file, insert a command to call the showClock() function. After the command that calls the showClock() function, insert a command that runs the showClock() function every second.
Document your work in this script file with comments. Then open the tny_july.html file in the browser preview. Verify that the page shows the date and time of May 19, 2021 at 9:31:27 a.m., and that the countdown clock shows that Countdown to the Fireworks 46 days, 11 hours, 28 minutes, and 33 seconds. The countdown clock will not change because the script uses a fixed date and time for the thisDay variable.
Return to the tny_timer.js file and change the statement that declares the thisDay variable so that it contains the current date and time rather than a specific date and time, then reload the tny_july.html file in the browser preview. Verify that the countdown clock changes every second as it counts down the time until the start of the fireworks at 9 p.m. on the 4th of July.
Sure, here's the code you can use:
The Program'use strict';
// Show the current time and countdown to next July 4th at 9pm
function showClock() {
// Step 1: Declare variable to hold the date May 19, 2021 at 9:31:27 a.m.
const thisDay = new Date("May 19, 2021 09:31:27");
// Step 2: Declare variables to hold local date and time
const localDate = thisDay.toLocaleDateString();
const localTime = thisDay.toLocaleTimeString();
// Step 3: Set the innerHTML of element with id "currentTime" to the date and time
document.getElementById("currentTime").innerHTML = `${localDate} ${localTime}`;
// Step 4: Get the next July 4th date using the nextJuly4() function
const j4Date = nextJuly4(thisDay);
// Step 5: Set the hours value to 9 p.m.
j4Date.setHours(21);
// Step 6: Express 9 p.m. in 24-hour time
// (already done by setting hours to 21 in step 5)
// Step 7: Calculate days, hours, minutes, and seconds left until 9 p.m. on next July 4th
const timeLeft = j4Date.getTime() - thisDay.getTime(); // difference in milliseconds
let secsLeft = Math.floor(timeLeft / 1000); // convert to seconds
let minsLeft = Math.floor(secsLeft / 60); // convert to minutes
let hrsLeft = Math.floor(minsLeft / 60); // convert to hours
const daysLeft = Math.floor(hrsLeft / 24); // convert to days
hrsLeft %= 24; // get remaining hours
minsLeft %= 60; // get remaining minutes
secsLeft %= 60; // get remaining seconds
// Update countdown elements with days, hours, minutes, and seconds left
document.getElementById("dLeft").textContent = Math.floor(daysLeft);
document.getElementById("hLeft").textContent = Math.floor(hrsLeft);
document.getElementById("mLeft").textContent = Math.floor(minsLeft);
document.getElementById("sLeft").textContent = Math.floor(secsLeft);
}
// Call the showClock function to initialize the countdown clock
showClock();
// Run the showClock function every second to update the countdown clock
setInterval(showClock, 1000);
This code declares the showClock() function which does the following:
Creates a Date object for May 19, 2021 at 9:31:27 a.m.
Uses toLocaleDateString() and toLocaleTimeString() to get the local date and time strings for this date.
Sets the innerHTML of an element with ID "currentTime" to display the local date and time.
Uses the nextJuly4() function to get the date of the next July 4th.
Sets the time of the j4Date object to 9 p.m. (21:00) on that day.
Calculates the days, hours, minutes, and seconds left until 9 p.m. on the next July 4th.
Updates the text content of elements with IDs "dLeft", "hLeft", "mLeft", and "sLeft" to display the time left.
The code then calls showClock() once to initialize the countdown clock, and uses setInterval() to run showClock() every second to update the countdown clock.
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While Angela is making modifications to Katie’s Word document, she would like to inform Katie of the reasoning for the change.
Which feature should Angela use?
Track Changes
email
Comments
Save File
Answer:
i think it's comments
Not too sure
While Angela is making modifications to Katie’s Word document, the feature that Katie should use is comments. The correct option is c.
What is a Word document?Microsoft Office is thought of as including Microsoft Word. Word, PowerPoint, Excel, Outlook, and a number of other programs are included in the Office suite of Microsoft tools.
These may be used on Windows or macOS and are suitable for both personal and professional use. They are not the same thing; Microsoft Word is merely one of such app.
A comment is a section or tool that can be used by the editor of the Word document. Comments can be added to correct the document and to give information that can be specified, and comments can be removed.
Therefore, the correct option is c. Comments.
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8. It is a computer component that converts AC power to DC power to be used
by the computer system.
Answer:
power supply unit.
A power supply unit (PSU) converts mains AC to low-voltage regulated DC power for the internal components of a computer. Modern personal computers universally use switched-mode power supplies.
Explanation:
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Which of the following statements is NOT true? Group of answer choices In a two-good market, a country can only have absolute advantage in one good. Trade is driven by comparative advantage. Evaluating opportunity costs helps to determine comparative advantage. Countries that focus on producing goods for which they have a comparative advantage specialize.
The statement that is NOT true is "In a two-good market, a country can only have absolute advantage in one good."
This is false as a country can have absolute advantage in both goods. It's important to understand the concepts of absolute advantage, comparative advantage, and specialization in the context of a two-good market. The statement that is NOT true is: "In a two-good market, a country can only have absolute advantage in one good." In fact, a country can have an absolute advantage in both goods, but still benefit from trade due to comparative advantage. Trade is driven by comparative advantage, which is determined by evaluating opportunity costs. By focusing on producing goods for which they have a comparative advantage, countries can effectively specialize, leading to greater overall efficiency and gains from trade. The statement that is NOT true is "In a two-good market, a country can only have absolute advantage in one good."
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See if you can put these inventions in the correct order, from most recent to oldest!
In order from most recent to oldest, here are the inventions:
1. Smartphones
2. Personal computers
3. Microwave ovens
4. Television
5. Automobiles
Smartphones are the most recent invention on this list, having become popular in the early 2000s. Personal computers were invented in the 1970s, followed by microwave ovens in the 1960s. Television has been around since the 1920s, and automobiles are the oldest invention on this list, dating back to the late 1800s. It's interesting to see how these inventions have evolved over time and how they continue to shape our lives today.
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Artificial intelligence (ai) in perspective is a complex and interdisciplinary field that involves several specialties, including:
Artificial intelligence (ai) in perspective is a complex and interdisciplinary field that involves several specialties, including Interdisciplinary research diploma applications integrate or greater conventional educational guides of have a look at right into a greater personalized major.
What is Interactions among AI Artificial intelligence?Interactions among AI Artificial intelligence and schooling is but some other instance of interdisciplinarity in AI (Oudeyer et al., 2016), that may immediately gain now no longer best the 2 fields, schooling and AI, however society and productiveness as a whole.
Interdisciplinary research diploma applications integrate or greater conventional educational guides of having a look at right into a greater personalized major. Unlike a liberal arts diploma wherein you'll have a look at an extensive type of subjects, an interdisciplinary diploma lets in college students to discover a greater centered subject matter that crosses into more than one field.Read more about the interdisciplinary :
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what is the process of calculating image size?
Answer:
Multiply the width and height of the image, in pixels, to get the total pixel count. 2. Multiply the total pixel count by 3 to get the image size in bytes. 3.
A browser ___ is a separate program that adds a variety of useful features to the web browser, such as sending instant messages or playing mobile-style games.
Answer:
The correct option is;
Extension
Explanation:
A browser extensions are available small applications plug-ins that allow the modification of the web browser by customizing and changing how information flows through the browser. Browser capabilities include the hosting of varying forms of browser extensions, and settings for ad blocking. Web experiences are vastly enhanced by browser extensions by providing personalized experience.
Write a program in the if statement that sets the variable hours to 10 when the flag variable minimum is set.
Answer:
I am using normally using conditions it will suit for all programming language
Explanation:
if(minimum){
hours=10
}
Write l for law of enrtia,ll for law of Acceleration and lll for law of enteraction.
___1)Empty grocery cart runs faster than the loaded one.
___2)Using Seatbelt to hold your body from leaning forward when a car you are riding suddenly stops.
___3)While rowing a boat,paddling will cause the bat to moved forward.
___4) A biker slightly presses the brake as his bike travels down on a slope.
___5)lt is easier for you to move a box with relief goods when helped by friends than moving it all by yourself.
___6) A toy truck with loads runs slower compared to a toy truck with empty loads when you pushed them at the same time.
___7) A kid catches a flying boomerang and stopping its motion.
___8)Your hand hurts when you punch someone hard.
___9)Rocket propulsion or when rocket lifts off from a shuttle System.
___10)A cart at rest start moving once someone pushes it forward.
this is for SCIENCE SUBJECT
PLEASE ANSWER IT PROPERLY BECAUSE I NEED IT UNTIL TOMMOROW MORNING...
\({ \qquad\qquad\huge\underline{{\sf Answer}}} \)
Statement 1 : llEmpty grocery cart runs faster than the loaded one.
By Newton's second law ( law of Acceleration ) :
\(\qquad \sf \dashrightarrow \: F = ma \)
If the mass is less, less force will be exerted to move it. hence empty cart runs faster than full cart as it requires more force.
Statement 2 : lUsing Seatbelt to hold your body from leaning forward when a car you are riding suddenly stops.
By Newton's first law ( law of inertia ) :
" An object has tendency to resist change in its state until any external unbalanced force is applied on it. "
So, while driving our state is in motion, and when we apply brake, it's change of state from motion to rest, hence by law of inertia, our body still keep up in motion, that makes us to lean forward.
Statement 3 : lllWhile rowing a boat,paddling will cause the bat to moved forward.
By Newton's third law ( law of enteraction ) :
" Every action has an equal and opposite reaction "
when we paddle, we push (apply force on) the water backwards, and hence water exerts a force on us in forward direction that let us move accordingly in water.
Statement 4 : llA biker slightly presses the brake as his bike travels down on a slope.
By Newton's second law ( law of Acceleration ) :
\(\qquad \sf \dashrightarrow \: F = ma \)
A biker applies brake when it's a slope, because it's acceleration increases significantly when it goes down the slope and to maintain the speed he applies a brake to slow down. ( increase in Acceleration causes bike to move fast, as more force is exerted )
Statement 5 : lllt is easier for you to move a box with relief goods when helped by friends than moving it all by yourself.
By Newton's second law ( law of Acceleration ) :
\(\qquad \sf \dashrightarrow \: F = ma \)
By the given formula we can clearly conclude that, to move a bulky object ( having heavy mass ), greater force is required, so we call for help as we can easily increase the force when there's more than one person pushing it.
Statement 6 : llA toy truck with loads runs slower compared to a toy truck with empty loads when you pushed them at the same time.
By Newton's second law ( law of Acceleration ) :
\(\qquad \sf \dashrightarrow \: F = ma \)
If same force is exerted on heavy and light object, Acceleration of that of lighter body will be more than that of bulky body, so.. the truck with load on it has more mass than truck with no load, hence truck with load moves slower.
Statement 7 : lA kid catches a flying boomerang and stopping its motion.
By Newton's first law ( law of inertia ) :
" An object has tendency to resist change in its state until any external unbalanced force is applied on it. "
When the kid catches the boomerang it was in motion, so it resists to come at rest, Therefore we need to apply a force and with time it comes to rest.
Statement 8 : lllYour hand hurts when you punch someone hard.
By Newton's third law ( law of enteraction ) :
" Every action has an equal and opposite reaction "
As we hit something hard, it feels painful because when we apply force on that hard object it applies the same force on our palm that results in pain.
Statement 9 : lllRocket propulsion or when rocket lifts off from a shuttle System.
By Newton's third law ( law of enteraction ) :
" Every action has an equal and opposite reaction "
In order to go up in the sky, one rocket applies a force download by the process of propulsion and hence by Newton's third law, a force of same magnitude is applied on it that cause Rocket to lift up.
Statement 10 : llA cart at rest start moving once someone pushes it forward.
By Newton's second law ( law of Acceleration ) :
\(\qquad \sf \dashrightarrow \: F = ma \)
Acceleration in a body is caused by force acting on it, so to move a car ( Accelerate ) we push it forward ( apply force ).
In general, a variable name must begin with either a letter or an underscore(_)
The given statement "In general, a variable name must begin with either a letter or an underscore(_)" is true because, in most programming languages, a variable name must begin with either a letter or an underscore (_).
This is because variables are used to represent values in the program, and their names should be descriptive and easy to understand. In addition, variable names may not include spaces or special characters with the exception of the underscore character.
Variable names should also be case-sensitive, meaning that uppercase and lowercase letters are treated as distinct. By following these conventions, programmers can create variable names that are easy to read and understand, which can improve the readability and maintainability of their code.
"
Complete question
In general, a variable name must begin with either a letter or an underscore(_)
true
false
"
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Powerful IT security systems are needed to defend against what appears to be authorized access to a network or application. Select one: True False
Answer:false
Explanation: why would you need a powerful it security system, if they already have authorized access?
What would happen if you fake a credit card number online on a website.
My 13 year old friend did that months ago and now he got a message saying his “chase account was locked due to suspicious activities”
I’m only asking because he’s freaking out
What type(s) of media can be pre-recorded (read only), recordable (write once), or re-recordable (read and write multiple times)? (2 points) Enter your answer
Answer:
An optical disc.
Explanation:
An optical disc is a small and flat digital-optical disc that is usually circular and used to store computer data by using a laser beam.
The optical disc is able to store digital data because it is made up of a polycarbonate (a tough-brittle plastic) with one (1) or more metal layers.
Additionally, the data stored in an optical disc cannot be scrambled by a magnet because it isn't made of a magnet or doesn't have a magnetic field. There are different types of optical disc and these are; CD-ROM, CD-R, CD-RW, DVD-RAM, DVD-ROM, DVD+/-RW, BD-RE, DVD+/-R, BD-R, BD-ROM.
Where; CD is an acronym for compact disc.
DVD is an acronym for digital video disc.
BD is an acronym for Blu-ray disc.
R represents read only.
RW represents read and write.
RE represents read, write and erasable.
Hence, an optical disc is a type of media that can be pre-recorded (read only), recordable (write once), or re-recordable (read and write multiple times).
TRUE/FALSE. chris wants to remove the rows with data errors in a query. to do so, he can right-click on the selected columns from where he wants to remove the rows containing the errors and select remove errors.
The given statement "chris wants to remove the rows with data errors in a query. to do so, he can right-click on the selected columns from where he wants to remove the rows containing the errors and select remove errors" is false. Chris can remove the rows with data errors in a query by using the "Filter" function and selecting the option to show only the valid data.
He cannot simply right-click on the selected columns and select "remove errors". This option does not exist in most query tools. The data errors can be filtered out using the "Filter" function in a query. This function allows users to select which data they want to see, including the option to show only valid data. While right-clicking on selected columns and selecting "remove errors" may work in some cases, it is not a standard option in most query tools.
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Which of the below would provide information using data-collection technology?
Buying a new shirt on an e-commerce site
Visiting a local art museum
Attending your friend's baseball game
Taking photos for the school's yearbook
The following statement would provide the information by utilising data-collection technology: Buying a new shirt on an e-commerce site.
What is data collection?
The process of obtaining and analysing data on certain variables in an established system is known as data collection or data gathering. This procedure allows one to analyse outcomes and provide answers to pertinent queries. In all academic disciplines, including the physical and social sciences, the humanities, and business, data collecting is a necessary component of research. Although techniques differ depending on the profession, the importance of ensuring accurate and truthful collection does not change. All data gathering efforts should aim to gather high-caliber information that will enable analysis to result in the creation of arguments that are believable and convincing in response to the issues that have been addressed. When conducting a census, data collection and validation takes four processes, while sampling requires seven steps.
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The platform game genre features an imaginary or fantasy world where the player is the main character who goes on an adventure or quest.
Group of answer choices
True
False
Which of the following is a firewall function?
a. encrypting
b. protocol conversion
c. frame filtering
d. FTP hosting
e. packet filtering
The firewall function among the options provided is packet filtering.
What is Packet Filtering?Packet filtering is a fundamental function of a firewall. It involves inspecting individual packets of data as they pass through the firewall and making decisions based on predefined rules.
These rules determine whether a packet should be allowed to pass through the firewall or be blocked. Packet filtering typically involves examining various packet attributes such as source and destination IP addresses, port numbers, and protocol types.
By analyzing these attributes, the firewall can enforce security policies and protect the network by allowing or denying specific network traffic.
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------ scenario of an algorithm happens when the algorithm is working on the easiest input or the minimum number of operations.
The best-case scenario of an algorithm happens when the algorithm is working on the easiest input or the minimum number of operations.
The scenario being described is called the "best-case" scenario. It refers to the situation where the algorithm is tested with the input that results in the most efficient performance, meaning it takes the minimum possible number of operations or resources to complete the task.
In other words, the best-case scenario represents the most optimistic view of an algorithm's performance. While it may be useful to understand how an algorithm performs under ideal conditions, it is important to also consider its performance in more realistic or challenging scenarios. Algorithms may perform differently depending on the input size, data distribution, and other factors. Therefore, it is important to test algorithms in a variety of scenarios to ensure their effectiveness and efficiency in real-world applications.
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team_id INT NOT NULL AUTO_INCREMENT,
team_name VARCHAR(50),
team_rank INT NOT NULL DEFAULT 0
Refer to code example 5-1.) What are the values of the team_id, team_name, and team_rank columns after the following statement is executed, assuming that the Teams table has one row in it with a team_id of 1?
After executing the given statement, the values in the columns would be as follows: team_id = 2, team_name = NULL, team_rank = 0.
The statement mentioned does not provide any explicit values for the columns team_name and team_rank. Therefore, the default values will be assigned. For the team_id column, the AUTO_INCREMENT attribute is set, which means it will automatically generate a new unique value for each new row inserted.
Since the Teams table already has one row with a team_id of 1, executing the statement will insert a new row. The team_id column, being AUTO_INCREMENT, will generate the next unique value, which is 2. So, team_id will be 2 for the new row.
As for team_name, no value is provided in the statement, so it will be set to NULL by default.
Similarly, team_rank column does not have a value specified in the statement, and it has a DEFAULT constraint set to 0. Hence, the team_rank will be assigned the default value of 0.
In conclusion, after executing the statement, the values in the columns will be: team_id = 2, team_name = NULL, and team_rank = 0.
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What is the author's purpose for writing this article? A to persuade readers to consider a career in aerospace engineering and at NASA B to caution readers about the difficulties that aerospace engineers encounter C to highlight the experiences of Tiera Fletcher growing up and as an aerospace engineer D to promote Tiera Fletcher's book and her nonprofit organization, Rocket With The Fletchers
Answer:
C to highlight the experiences of Tiera Fletcher growing up and as an aerospace engineer
Explanation:
Dream Jobs: Rocket Designer, a Newsela article by Rebecca Wilkins was written with the intent of informing the readers of how Tiera Fletcher developed a love for mathematics at an early age and further developed a desire to be a Space Engineer which she succeeded at. She highlighted the different steps she took before she realized her goal. Some of these steps included working as an intern in several space establishments and performing research.
Today, she is very successful in her career and hopes that young ones can pursue a career in any STEM careers of their choice.
Answer:
c on newsella
Explanation:
How did tribes profit most from cattle drives that passed through their land?
A.
by successfully collecting taxes from every drover who used their lands
B.
by buying cattle from ranchers to keep for themselves
C.
by selling cattle that would be taken to Texas ranches
D.
by leasing grazing land to ranchers and drovers from Texas
The way that the tribes profit most from cattle drives that passed through their land is option D. By leasing grazing land to ranchers and drovers from Texas.
How did Native Americans gain from the long cattle drives?When Oklahoma became a state in 1907, the reservation system there was essentially abolished. In Indian Territory, cattle were and are the dominant economic driver.
Tolls on moving livestock, exporting their own animals, and leasing their territory for grazing were all sources of income for the tribes.
There were several cattle drives between 1867 and 1893. Cattle drives were conducted to supply the demand for beef in the east and to provide the cattlemen with a means of livelihood after the Civil War when the great cities in the northeast lacked livestock.
Lastly, Abolishing Cattle Drives: Soon after the Civil War, it began, and after the railroads reached Texas, it came to an end.
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g write the code that would support overload for the * operator that will allow scalar multiplication, i.e. a double times a point.
Answer:
Here is one possible way to implement overload for the * operator that will allow scalar multiplication:
struct Vec3 {
float x, y, z;
Vec3 operator*(float scalar) const {
return Vec3{x * scalar, y * scalar, z * scalar};
}
};
This code defines a Vec3 struct that represents a three-dimensional vector, and it overloads the * operator to perform scalar multiplication. The * operator takes a float value as its right-hand operand and returns a new Vec3 object that is the result of scaling the original vector by the given scalar value.
(0)
GETTING ERROR: "Cannot find symbol - Class LinkedList"
import java.util.*;
//Plant.java
class Plant{
String name;
int id;
String color;
Plant(){
}
void SetID(int id)
{
this.id = id;
}
int GetID()
{
return this.id;
}
void SetName(String name)
{
this.name = name;
}
void SetColor(String color)
{
this.color = name;
}
public void Show(){
System.out.println("ID:"+id+"\nName:"+name+"\nColor:"+color);
}
}
//Flower.java
class Flower extends Plant{
String thorns;
String smell;
void SetSmell(String smell)
{
this.smell = smell;
}
void SetThorns(String thorn)
{
this.thorns = thorn;
}
public void Show(){
super.Show();
System.out.println("thorns:"+thorns+"Smell:"+smell);
}
}
//Fungus.java
class Fungus extends Plant{
boolean poisonous;
void SetPoisonous(boolean poisonous)
{
this.poisonous = poisonous;
}
public void Show(){
super.Show();
System.out.println("poisonous:"+poisonous);
}
}
//Weed.java
class Weed extends Plant{
boolean poisonous;
String edible;
String medicinal;
void SetPoisonous(boolean poisonous)
{
this.poisonous = poisonous;
}
void SetEdible(String edible)
{
this.edible = edible;
}
void SetMedicinal(String medicinal)
{
this.medicinal = medicinal;
}
public void Show(){
super.Show();
System.out.println("poisnous:"+poisonous+"edible:"+edible+"medicinal:"+medicinal);
}
}
//Mid.java
public class Mid{
static LinkedList plants;
public static Plant SearchPlant(int id)
{
for(Plant p:plants){
if ( p.GetID() == id ) {
return p;
}
}
return null;
}
public static void main(String []args){
plants=new LinkedList ();
boolean continueChoice = false;
Scanner scanner = new Scanner(System.in);
int choice = 0;
do {
try{
System.out.println("Choose Plant:1. Flower\n2. Fungus \n3.Weed\n Enter Option:");
int plantCh = scanner.nextInt();
if ( plantCh < 1 || plantCh > 3 )
{
System.out.println("Wrong Choice Entered! Try Again");
continue;
}
System.out.println("Choose Operation:1. Add\n2. Remove \n3. Search\n4. Show\nEnter Option:");
int op = scanner.nextInt();
switch(op)
{
case 1://Add
int id;
System.out.println("Enter ID:");
id = scanner.nextInt();
scanner.nextLine(); //This is needed to pick up the new line
System.out.println("Enter Name:");
String name = scanner.nextLine();
System.out.println("Enter Color:");
String color = scanner.nextLine();
Plant p = null;
if ( plantCh == 1 )
{
p = new Flower();
System.out.println("Enter thorns:");
String thorns = scanner.nextLine();
((Flower)p).SetThorns(thorns);
// p.SetThorns(thorns);
System.out.println("Enter Smell:");
String smell = scanner.nextLine();
((Flower)p).SetSmell(smell);
}
else if(plantCh == 2 )
{ p = new Fungus();
System.out.println("Enter poisnous:");
boolean poison = scanner.nextBoolean();
((Fungus)p).SetPoisonous(poison);
}
else {
p = new Weed();
System.out.println("Enter poisnous:");
boolean poison = scanner.nextBoolean();
((Weed)p).SetPoisonous(poison);
System.out.println("Enter Edible:");
String edible = scanner.nextLine();
((Weed)p).SetEdible(edible);
System.out.println("Enter Medicinal:");
String medicinal = scanner.nextLine();
((Weed)p).SetMedicinal(medicinal);
}
p.SetID(id);
p.SetName(name);
p.SetColor(color);
plants.add(p);
break;
case 2://Remove
{
System.out.println("Enter Plant ID:");
id =scanner.nextInt();
Plant plantOBJ = SearchPlant(id);
if ( plantOBJ != null ) {
plants.remove(plantOBJ);
System.out.println("Flower ID: "+id+"removed");
}
else
{
System.out.println("Flower ID: "+id+"not found");
}
}
break;
case 3://Search
System.out.println("Enter Plant ID:");
id =scanner.nextInt();
if ( SearchPlant(id) != null ) {
System.out.println("Flower ID: "+id+"found");
}
else
{
System.out.println("Flower ID: "+id+"not found");
}
break;
case 4://Show
{
System.out.println("Enter Plant ID:");
id =scanner.nextInt();
Plant plantObj = SearchPlant(id);
if ( SearchPlant(id) != null) {
plantObj.Show();
}
else
{
System.out.println("Flower ID: "+id+"not found");
}
}
break;
default:
System.out.println("Wrong choice");
}
System.out.print("Do you want to continue (true or false): ");
continueChoice = scanner.nextBoolean();
}
catch(Exception e)
{
e.printStackTrace();
}
}
while(continueChoice);
}
}
It seems you are getting a "Cannot find symbol - Class LinkedList" error in your code. The issue is because you forgot to specify the type of objects stored in the LinkedList.
You can resolve this error by specifying the type as Plant while declaring the LinkedList. Here's the corrected line of code in your Mid.java file:
static LinkedList plants;
Learn more about objects visit:
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which of the following statements is most true about metadata and interoperability? group of answer choices standardized schemas are more interoperable than customized ones. interoperability is the aspect of a metadata schema that specifies how to properly formatted metadata elements the international mega-thesaurus will ease the vocabulary problem by cross-walking each concept from each major language to all the others now that everything is web-based, interoperability is automatic
Standardized schemas are more interoperable than customized ones.
Metadata is information that describes data, and it plays a crucial role in interoperability. Interoperability refers to the ability of different systems to work together and share information effectively. In terms of metadata, standardized schemas that have been widely adopted tend to be more interoperable than customized ones. The reason is that standardized schemas are designed to work well with other systems that use the same schema. Additionally, a metadata schema needs to specify how metadata elements should be formatted to ensure interoperability. Finally, while efforts like the International Mega-Thesaurus can help with vocabulary standardization, it's important to remember that effective interoperability requires not just shared vocabulary, but also shared standards for formatting and sharing information.
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Complete question:
Which of the following statements is most true about metadata and interoperability.
Now that everything is Web-based, interoperability is automatic
Interoperability is the aspect of a metadata schema that specifies how to properly formatted metadata elements
The International Mega-Thesaurus will ease the vocabulary problem by cross-walking each concept from each major language to all the others
Standardized schemas are more interoperable than customized ones.