Understanding Join Types
Which join type will only include rows where the joined fields from both tables are equal?
O inner join
O left outer join
Oright inner join
O right outer join
Answer: inner join
Explanation:Edg. 2021
Type the correct answer in the box. Spell all words correctly. Complete the sentence below that describes an open standard in video production. Today, video production has become digital, and all playback devices work on the open standard known as *blank* technology.
Answer:
digital
Explanation:
Today, video production has become digital, and all playback devices work on the open standard known as digital technology.
What are 3 data Gathering method that you find effective in creating interactive design for product interface and justify your answer?
Answer:
In other words, you conducted the four fundamental activities that make up the interaction design process – establishing requirements, designing alternatives, prototyping designs, and evaluating prototypes.
Explanation:
Plz hurry it’s timed
name the reactants in the equation P+O
When determining the statement of purpose for a database design, what is the most important question to ask?
O Who will use the database?
O Should I use the Report Wizard?
O How many copies should I print?
O How many tables will be in the database?
Answer: A. Who will use the database?
Explanation:
When determining the statement of purpose for a database design,the most important question to ask is Who will use the database?
What is the purpose of statement of purpose for a database ?Statement of purpose in a data base is very essential to know more about the database, this is why it is important to ask the question Who will use the database?
This question help the programmer to know the kind of data that will be running at the database so as make sure the database serve the required purpose.
Therefore option A is correct.
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How might you use PowerPoint as a student, as an employee, or personally?
Answer: You can use a powerpoint as student for assignments, as an employee for presentations, and personally for taking notes.
Explanation:
Hey there!
Answer:
As a student, you might use PowerPoint to complete assignments and create presentations. When your teacher assigns an assignment that you need to share with the class, PowerPoint would be a good program to use.
As an employee, you can use PowerPoint to keep track of sales or data about your job. This way, you can easily show your boss what you have done over the past times you've been working. You can also advertise about your job depending on what your job is.
To use it personally, you can create photo montages of trips with a photo on each slide to share with friends. You can also keep track of chores or chore salaries.
The program PowerPoint can be used in so many ways for so many things, the rest is up to your imagination!
Hope this helps :)
Rideshare companies like Uber or Lyft track the x,y coordinates of drivers and customers on a map. If a customer requests a ride, the company's app estimates the minutes until the nearest driver can arrive. Write a method that, given the x and y coordinates of a customer and the three nearest drivers, returns the estimated pickup time. Assume drivers can only drive in the x or y directions (not diagonal), and each mile takes 3.5 minutes to drive. All values are doubles; the coordinates of the user and of the drivers are stored as arrays of length 2. 289222.1780078.qx3zqy7
Answer:
The program in Java is as follows:
import java.util.*;
public class Main{
public static void main (String[]args){
Scanner input = new Scanner(System.in);
double user[] = new double[2]; double dr1[] = new double[2];
double dr2[] = new double[2]; double dr3[] = new double[2];
System.out.print("Enter user coordinates: ");
for(int i =0;i<2;i++){ user[i] = input.nextDouble(); }
System.out.print("Enter driver 1 coordinates: ");
for(int i =0;i<2;i++){ dr1[i] = input.nextDouble(); }
System.out.print("Enter driver 2 coordinates: ");
for(int i =0;i<2;i++){ dr2[i] = input.nextDouble(); }
System.out.print("Enter driver 3 coordinates: ");
for(int i =0;i<2;i++){ dr3[i] = input.nextDouble(); }
double dr1dist = Math.abs(user[0] - dr1[0]) + Math.abs(user[1] - dr1[1]);
double dr2dist = Math.abs(user[0] - dr2[0]) + Math.abs(user[1] - dr2[1]);
double dr3dist = Math.abs(user[0] - dr3[0]) + Math.abs(user[1] - dr3[1]);
System.out.println("Estimated pickup time of driver 1 "+(3.5 * dr1dist)+" minutes");
System.out.println("Estimated pickup time of driver 2 "+(3.5 * dr2dist)+" minutes");
System.out.println("Estimated pickup time of driver 3 "+(3.5 * dr3dist)+" minutes");
}
}
Explanation:
The following array declarations are for the customer and the three drivers
double user[] = new double[2]; double dr1[] = new double[2];
double dr2[] = new double[2]; double dr3[] = new double[2];
This prompts the user for the customer's coordinates
System.out.print("Enter user coordinates: ");
This gets the customer's coordinate
for(int i =0;i<2;i++){ user[i] = input.nextDouble(); }
This prompts the user for the driver 1 coordinates
System.out.print("Enter driver 1 coordinates: ");
This gets the driver 1's coordinate
for(int i =0;i<2;i++){ dr1[i] = input.nextDouble(); }
This prompts the user for the driver 2 coordinates
System.out.print("Enter driver 2 coordinates: ");
This gets the driver 2's coordinate
for(int i =0;i<2;i++){ dr2[i] = input.nextDouble(); }
This prompts the user for the driver 3 coordinates
System.out.print("Enter driver 3 coordinates: ");
This gets the driver 3's coordinate
for(int i =0;i<2;i++){ dr3[i] = input.nextDouble(); }
This calculates the distance between driver 1 and the customer
double dr1dist = Math.abs(user[0] - dr1[0]) + Math.abs(user[1] - dr1[1]);
This calculates the distance between driver 2 and the customer
double dr2dist = Math.abs(user[0] - dr2[0]) + Math.abs(user[1] - dr2[1]);
This calculates the distance between driver 3 and the customer
double dr3dist = Math.abs(user[0] - dr3[0]) + Math.abs(user[1] - dr3[1]);
The following print statements print the estimated pickup time of each driver
System.out.println("Estimated pickup time of driver 1 "+(3.5 * dr1dist)+" minutes");
System.out.println("Estimated pickup time of driver 2 "+(3.5 * dr2dist)+" minutes");
System.out.println("Estimated pickup time of driver 3 "+(3.5 * dr3dist)+" minutes");
The first real web browsers that looked even somewhat like the web we know today were not created until which year?
O 1996
1994
O 1997
O 1995
Answer:
1994 is the answer . make me brainlist
______allow you to select elements that are in a certain state, such as when the mouse if hovering over an element
Answer:
css.
Explanation:
When developing an algorithm to solve a problem, which of these steps can help you design the solution for the problem?
Answer:
3 is the answer please mark me brainlist
Explanation:
ok
#Program to calculate statistics from student test scores. midterm_scores = [99.5, 78.25, 76, 58.5, 100, 87.5, 91, 68, 100] final_scores = [55, 62, 100, 98.75, 80, 76.5, 85.25] #Combine the scores into a single list all_scores = midterm_scores + final_scores num_midterm_scores = len(midterm_scores) num_final_scores = len(final_scores) print(num_midterm_scores, 'students took the midterm.') print(num_final_scores, 'students took the final.') #Calculate the number of students that took the midterm but not the final dropped_students = num_midterm_scores - num_final_scores print(dropped_students, 'students must have dropped the class.') lowest_final = min(final_scores) highest_final = max(final_scores) print('\nFinal scores ranged from', lowest_final, 'to', highest_final) # Calculate the average midterm and final scores # Hint: Sum the midterm scores and divide by number of midterm takers # Repeat for the final
Answer:
try this
Explanation:
#Python program for calculating avg
#Given data
m1 = [99.5, 78.25, 76, 58.5, 100, 87.5, 91, 68, 100]
f1 = [55, 62, 100, 98.75, 80, 85.25]
#combine scores
all_scores = m1 + f1
#number of m1 and f1
num_midterm = len(m1)
num_final = len(f1)
#find avg of scores
avg_midterm = sum(m1) / num_midterm
avg_final = sum(f1) / num_final
#print the avg
print("Average of the m1 score:",round(avg_midterm,2))
print("Average of the f1 score:",round(avg_final,2))
Suppose that a minus sign in the input indicates pop the stack and write the return value to standard output, and any other string indicates push the string onto the stack. Further suppose that following input is processed:
this parrot - wouldn't voom - if i put -- four thousand --- volts - through it -
What are the contents (top to bottom) left on the stack?
a. through wouldn't this.
b. this wouldn't through.
c. it through wouldn't.
d. it through volta.
e. volts through it.
Answer:
e. volts through it
Explanation:
volts through it
The contents (top to bottom) left on the stack is volts through it. Thus, option E is correct.
What is standard output?When a computer program begins execution, standard streams are interconnected input and output channels of communication between the program and its surroundings. The three I/O connections are known as standard input (stdin), standard output (stdout), and standard error (stderr).
A negative sign in the input indicates that the stack should be popped, and the return value should be sent to standard output, whereas any other string means that the string should be pushed into the stack. Assume that the following input is processed: this parrot would not voom if I pushed — four thousand —- volts - through it.
The contents of the stack (from top to bottom) are volts via it. As a result, option E is correct.
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A new version of quicksort has been suggested by Professor I. M. CRAZY called CRAZYSORT in which anadversary picks the splitter in Partition in the worst possible way to maximize the running time of CRAZYSORT, thatis, line 1 of Partition (see textbook) is determined by the adversary in constant timeO(1). What is the running time ofCRAZYSORT? Justify your answer.
Java 2D Drawing Application. The application will contain the following elements:
a) an Undo button to undo the last shape drawn.
b) a Clear button to clear all shapes from the drawing.
c) a combo box for selecting the shape to draw, a line, oval, or rectangle.
d) a checkbox which specifies if the shape should be filled or unfilled.
e) a checkbox to specify whether to paint using a gradient.
f) two JButtons that each show a JColorChooser dialog to allow the user to choose the first and second color in the gradient.
g) a text field for entering the Stroke width.
h) a text field for entering the Stroke dash length.
I) a checkbox for specifying whether to draw a dashed or solid line.
j) a JPanel on which the shapes are drawn.
k) a status bar JLabel at the bottom of the frame that displays the current location of the mouse on the draw panel.
If the user selects to draw with a gradient, set the Paint on the shape to be a gradient of the two colors chosen by the user. If the user does not chosen to draw with a gradient, the Paint with a solid color of the 1st Color.
Note: When dragging the mouse to create a new shape, the shape should be drawn as the mouse is dragged.
Answer:
sadness and depression is my answer
Explanation:
First one who answers gets brainiest
Answer:
thank for the point anyway
Write a function template that accepts an argument and returns its absolute value. The absolute value of a number is its value with no sign. For example, the absolute value of -5 is 5, and the absolute value of 2 is 2. Test the template in a simple driver program being sure to send the template short, int, double, float, and long data values.
Answer:
The function in Java is as follows:
public static double func(double num){
num = Math.abs(num);
return num;
}
Explanation:
This defines the function
public static double func(double num){
This determines the absolute function of num
num = Math.abs(num);
This returns the calculated absolute value
return num;
}
What is Machine Learning (ML)?
Answer:
Explanation:
Machine learning is a branch of artificial intelligence (AI) and computer science which focuses on the use of data and algorithms to imitate the way that humans learn, gradually improving its accuracy.
Answer:
Machine learning is a type of learning that makes learning easy and faster with the help of electrical devices such as mobile phones,laptops etc
Explanation:
This enable the user to work faster and easily with no stress at all
Order the steps needed to design a relational database.
Identify the fields holding
Break down the data into
List the fields needed to
Identify the common fields
Distribute the fields into
stored data
smaller parts
gain information
for linking tables
tables by subject
We
Answer:
1. List the fields needed to gain information
2. Break down the date into smaller parts
3. identify the fields holding stored data
4.distribute the fields into tables by subject
5. identify the common fields for linking tables
Explanation:
edge 2021
The correct matching of the steps for a relational database are:
1. List the fields needed to gain information2. Break down the date into smaller partsWhat is a Database?This refers to the collection of data that is stored in a central system that can be easily retrieved at any time.
The other answers are:
3. identify the fields holding stored data4. distribute the fields into tables by subject5. identify the common fields for linking tablesRead more about databases here:
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Davos has been reading about encryption recently. He begins to wonder how anything can be secure if everyone is using the same set of algorithms. After all, anyone using the same algorithm would be able to decrypt anything that had been encrypted using that algorithm. Which of the following helps make the data unusable by anyone else using that same encryption scheme without having this information?
a. Algorithm
b. Cipher
c. Key
d. Block
Answer:
The correct answer is B. Cipher.
Explanation:
Cipher is a system of reversible transformations that depends on some secret parameter, called key, and is designed to ensure the secrecy of transmitted information.
The cipher can be a combination of conventional characters or an algorithm for converting ordinary numbers and letters. The process of making a message secret with a cipher is called encryption. An important parameter of any cipher is the key - a parameter of the cryptographic algorithm, which ensures the selection of one transformation from the set of transformations possible for this algorithm. In modern cryptography, it is assumed that all the secrecy of a cryptographic algorithm is concentrated in the key.
For this assignment your are to implement the Pet Class described in Programming Exercise 1, starting on page 494 in our textbook. Additionally your program will allow users to enter the pet's information until the user enters in the string "quit". Once the user enters quit the program will print out a summary of all the information that has been entered. Your program should not assume any maximum number of pets that can be added. Items in blue designate output. Items in red designate computer input. Example Test Case: Enter name, type and age of your pet: Name: Momo Type: Bird Age: 33 Enter "quit" to stop entering. Anything else to continue. a Enter name, type and age of your pet: Name: Pooh Type: Dog Age: 8 Enter "quit" to stop entering. Anything else to continue. quit SUMMARY: Name: Momo, Type: Bird, Age: 33. Name: Pooh, Type: Dog, Age: 8.
Answer:
ohhhvhhffifyuddfuiicfdguc
How I did it. Part 4
Answer:
What are you asking for in this problem?
Explanation:
Write a test program that prompts the user to enter the number of the items and weight for each item and the weight capacity of the bag, and displays the maximum total weight of the items that can be placed in the bag. Here is a sample run:
Answer:
The program in Python is as follows:
n = int(input("Number of weights: "))
weights= []
for i in range(n):
inp = float(input("Weight: "))
weights.append(inp)
capacity = float(input("Capacity: "))
possible_weights = []
for i in range(n):
for j in range(i,n):
if capacity >= weights[i] + weights[j]:
possible_weights.append(weights[i] + weights[j])
print("Maximum capacity is: ",max(possible_weights))
Explanation:
This gets the number of weights from the user
n = int(input("Number of weights: "))
This initializes the weights (as a list)
weights= []
This iteration gets all weights from the user
for i in range(n):
inp = float(input("Weight: "))
weights.append(inp)
This gets the weight capacity
capacity = float(input("Capacity: "))
This initializes the possible weights capacity (as a list)
possible_weights = []
This iterates through the weights list
for i in range(n):
for j in range(i,n):
This gets all possible weights that can be carried by the bag
if capacity >= weights[i] + weights[j]:
possible_weights.append(weights[i] + weights[j])
This prints the maximum of all possible weights
print("Maximum capacity is: ",max(possible_weights))
In numerical methods, one source of error occurs when we use an approximation for a mathematical expression that would otherwise be too costly to compute in terms of run-time or memory resources. One routine example is the approximation of infinite series by a finite series that mostly captures the important behavior of the infinite series.
In this problem you will implement an approximation to the exp(x) as represented by the following infinite series,
exp(x) = Infinity n= 0 xn/xn!
Your approximation will be a truncated finite series with N + 1 terms,
exp(x, N) = Infinityn n = 0 xn/xn!
For the first part of this problem, you are given a random real number x and will investigate how well a finite series expansion for exp(x) approximates the infinite series.
Compute exp(x) using a finite series approximation with N E [0, 9] N (i.e. is an integer).
Save the 10 floating point values from your approximation in a numpy array named exp_approx. exp_approx should be of shape (10,) and should be ordered with increasing N (i.e. the first entry of exp_approx should correspond to exp(x, N) when N = 0 and the last entry when N = 9).
Answer:
The function in Python is as follows:
import math
import numpy as np
def exp(x):
mylist = []
for n in range(10):
num = (x**n)/(math.factorial(n))
mylist.append([num])
exp_approx = np.asarray(mylist)
sum = 0
for num in exp_approx:
sum+=num
return sum
Explanation:
The imports the python math module
import math
The imports the python numpy module
import numpy as np
The function begins here
def exp(x):
This creates an empty list
mylist = []
This iterates from 0 to 9
for n in range(10):
This calculates each term of the series
num = (x**n)/(math.factorial(n))
This appends the term to list, mylist
mylist.append([num])
This appends all elements of mylist to numpy array, exp_approx
exp_approx = np.asarray(mylist)
This initializes the sum of the series to 0
sum = 0
This iterates through exp_approx
for num in exp_approx:
This adds all terms of the series
sum+=num
This returns the calculated sum
return sum
New cars use embedded computers to make driving safer
Answer:
true.......................
New cars use embedded computers to make driving safer. The given statement is true.
What is RAM?
The word RAM stands for random-access memory and it is known as memory of short term where data is stored and as required by the processor. This is not there to deal with long term data and it is working after the computer turned off.
Generally, there are three types of RAM and these are SRAM, ECC, and DRAM. The SRAM stands for static random memory, and DRAM stands for dynamic access memory.
CPU stands for central processing unit and commonly it is known as brain of the computer, the main function of CPU is to control the function of the computer or system and it gives command to the parts of computer.
Therefore, New cars use embedded computers to make driving safer. The given statement is true.
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What characteristics should be determined to design a relational database? Check all that apply.
the fields needed
the tables needed
the keys and relationships
the purpose of the database
all of the tables in the database
all of the records in the database
the queries, forms, and reports to generate
Answer: 1,2,3,4,7
Just took it (:
when the tv was created (year)
Answer:
1927
Explanation:
Answer:
1971 is the year
Why is it important to isolate evidence-containing devices from the internet?
To save the battery
To hide their location
Devices can be remotely locked or wiped if connected
It is not important to isolate the devices
Answer:
C.
Devices can be remotely locked or wiped if connected
Explanation:
What does the following code print?
// upload only .txt file ***************************************************** public class { public static void main(String[] args) { int x=5 ,y = 10; if (x>5 && y>=2) System.out.println("Class 1"); else if (x<14 || y>5) System.out.println(" Class 2"); else System.out.println(" Class 3"); }// end of main } // end of class.
Answer:
Error - At least one public class is required in main file
if you change it too:
public class main{
public static void main(String[] args) {
int x=5 ,y = 10;
if (x>5 && y>=2) System.out.println("Class 1");
else if (x<14 || y>5) System.out.println(" Class 2");
else System.out.println(" Class 3"); }
// end of main
}
// end of class.
than it will say Class 2.
Explanation:
Who is MrBeast?
Answer the question correctly and get 10 points!
Answer: MrBeast is a y0utuber who has lots of money
Explanation:
Answer:
He is a You tuber who likes to donate do stunts and best of all spend money.
It's like he never runs out of money.
Explanation: