The association between tables is referred to as referential integrity. A primary key is required for each table in a database and can appear in other tables as a result of its connection to the data in those other tables. Foreign keys are used when a primary key from one table appears in another table.
Here is the problem specification: An Internet service provider has three different subscription packages for its customers: Package A: For $9.95 per month 10 hours of access are provided. Additional hours are $2.00 per hour. Package B: For $14.95 per month 20 hours of access are provided. Additional hours are $1.00 per hour. Package C: For $19.95 per month unlimited access is provided. Write a program that calculates a customer's monthly bill. It should ask which package the customer has purchased and how many hours were used. It should then display the total amount due. Input Validation: Be sure the user only selects package A, B or C. Also, the number of hours used in a month cannot exceed 744. Use switch.
Answer:
In C++:
#include <iostream>
using namespace std;
int main(){
int hour; char pkg; float bill = 0;
cout<<"Package: "; cin>>pkg;
cout<<"Hour: "; cin>>hour;
if(hour<=744 && hour >=0){
switch (pkg) {
case 'A':
bill = hour * 9.95;
if(hour >10){bill = 10 * 9.95 + (hour - 10) * 2;}
break;
case 'B':
bill = hour * 14.5;
if(hour >10){bill = 20 * 14.5 + (hour - 20) * 1;}
break;
case 'C':
bill = 19.95;
break;
default:
cout << "Package must be A, B or C";}
cout<<"Total Bills: $"<<bill; }
else{ cout<<"Hour must be 0 - 744"; }
return 0;
}
Explanation:
This declares all variables: int hour; char pkg; float bill=0;
This prompts the user for package type: cout<<"Package: "; cin>>pkg;
This prompts the user for number of hours: cout<<"Hour: "; cin>>hour;
This checks if hour is between 0 and 744 (inclusive)
if(hour<=744 && hour >=0){
If true, the following is executed
A switch statement to check valid input for package
switch (pkg) {
For 'A' package
case 'A':
Calculate the bill
bill = hour * 9.95;
if(hour >10){bill = 10 * 9.95 + (hour - 10) * 2;}
End of A package: break;
For 'B' package
case 'B':
Calculate the bill
bill = hour * 14.5;
if(hour >10){bill = 20 * 14.5 + (hour - 20) * 1;}
End of B package: break;
For C package
case 'C':
Calculate bill: bill = 19.95;
End of C package: break;
If package is not A, or B or C
default:
Prompt the user for valid package cout << "Package must be A, B or C";}
Print total bills: cout<<"Total Bills: $"<<bill; }
If hour is not 0 to 744: else{ cout<<"Hour must be 0 - 744"; }
lower cabinet is suitable for storing and stocking pots and pans true or false
One of the following represent class B IP address? A.255.255.255.0 B. 125.123.132 C.24.67.11.8 D.191.23.21.54
Answer:
D.191.23.21.54
Explanation:
Class B networks use a default subnet mask of 255.255. 0.0 and have 128-191 as their first octet. The address 191.23.21.54 is a class B address
(Please heart the answer if you find it helpful, it's a motivation for me to help more people)
identify similarities and differences of hibiscus leaves
Answer:
I'm sorry but I cant answer if it's only one product,it should be two..it's like different to what,or similar to what
what is the file extension if the file editing
Explanation:
"A file extension (or simply "extension") is the suffix at the end of a filename that indicates what type of file it is. For example, in the filename "myreport. txt," the . TXT is the file extension.Sometimes long file extensions are used to more clearly identify the file type."
25 POINTS PLATO
Drag the tiles to the boxes to form correct pairs.
Pat creates a table in a spreadsheet program, starting at cell A1 and ending at cell B4. Column A contains words, while column B contains the words’ meanings. Pat wants to look up the meaning of the word "paramount", which is present in cell A3. How should Pat write the LOOKUP function? Refer to the syntax of the function and match the arguments in the syntax to their values.
Syntax: LOOKUP(lookup value; search table; result table)
B1:B4
"paramount"
A1:A4
lookup value
search table
result table
Answer:
lookup value = "paramount"
Search table = A1:A4
Result table = B1;B4
Explanation:
lookup, what are we looking up.....:::///????Paramount
What is the beginning search table......A1;A4
Column B contains the words meanings.....this is the result we want:
So the Result table......B1:B4
LOOKUP("paramount"; B1:B4; A1:A4) should Pat write the LOOKUP function.
What is a LOOKUP function?Lookup functions entail accessing a cell, comparing its values to those in an adjacent row or column, and then extracting the relevant answers from the associated columns or rows of Excel.
The lookup value, the search table, and indeed the result table are the three inputs required by the LOOKUP function. The value you are searching for, in this case, "paramount," is the lookup value.
The table that contains the lookup value, throughout this example B1:B4, is known as the search table.
The table where the results of the lookup are stored is known as the result table, and in this example, A1:
Pat should use the columns which would have the cell value of B1, B4 as well as A1.
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How is QA done in agile projects
200+300-500.
Explanation:
rjfnvkfjfhfofgfohgighghgiggh
Companies sometimes pay search engine companies to have their websites located at the top of the search results. Do you think this is fair/ethical?
Answer:
I really don't think that it is fair or ethical.
Explanation:
When companies pay to put their websites at the top it is known as an ad. They are in top search engines like the ones we use every day. I believe this is unethical because it often results in confusion and sometimes misleads the user as the titles often use clickbait.
8.15 lab*: Program: Playlist
Answer:
8.15 LAB* Program: Playlist You Will Be Building A Linked List. Make Sure To Keep Track Of Both The Head And Tail Nodes. (1) Create Three Files To Submit • PlaylistNode. h - Struct Definition And Related Function Declarations • PlaylistNode.
why is it important to give files name that are descriptive of their content
Answer:
Provide a descriptive document file name and title
A unique, descriptive file name helps individuals understand the general topic of a document. Include similar information when writing the title of the document, and apply appropriate punctuation, e.g., no underscores.
Explanation:
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What is computer science
Answer:
computer science is the study of computer and computing as well as theoretical and practical applications.
pls give me thanks ☺️☺️
5.18 LAB: Output numbers in reverse Write a program that reads a list of integers, and outputs those integers in reverse. The input begins with an integer indicating the number of integers that follow. For coding simplicity, follow each output integer by a comma, including the last one. Ex: If the input is: 5 2 4 6 8 10 the output is: 10,8,6,4,2, To achieve the above, first read the integers into a vector. Then output the vector in reverse.
Answer:
In C++:
#include<iostream>
#include<vector>
using namespace std;
int main(){
int len, num;
vector<int> vect;
cout<<"Length: ";
cin>>len;
for(int i = 0; i<len;i++){
cin>>num;
vect.push_back(num);}
vector<int>::iterator iter;
for (iter = vect.end() - 1; iter >= vect.begin(); iter--){
cout << *iter << ", ";}
}
Explanation:
This declares the length of vector and input number as integer
int len, num;
This declares an integer vector
vector<int> vect;
This prompts the user for length
cout<<"Length: ";
This gets the input for length
cin>>len;
The following iteration gets input into the vector
for(int i = 0; i<len;i++){
cin>>num;
vect.push_back(num);}
This declares an iterator for the vector
vector<int>::iterator iter;
The following iterates from the end to the beginning and prints the vector in reverse
for (iter = vect.end() - 1; iter >= vect.begin(); iter--){
cout << *iter << ", ";}
An Olympic-size swimming pool is used in the Olympic Games, where the race course is 50 meters (164.0 ft) in length. "In swimming a lap is the same as a length. By definition, a lap means a complete trip around a race track, in swimming, the pool is the race track. Therefore if you swim from one end to the other, you’ve completed the track and thus you’ve completed one lap or one length." (Source: What Is A Lap In Swimming? Lap Vs Length)
Write the function meters_to_laps() that takes a number of meters as an argument and returns the number of laps. Complete the program to output the number of laps.
Output each floating-point value with two digits after the decimal point, which can be achieved as follows:
print('{:.2f}'.format(your_value))
Ex: If the input is:
150
the output is:
3.00
Ex: If the input is:
80
the output is:
1.60
Your program must define and call the following function:
def meters_to_laps (length)
Answer:
In Python:
def meters_to_laps(length):
lap = length/50
print('{:.2f}'.format(lap))
Explanation:
This line defines the function
def meters_to_laps(length):
This calculates the number of laps
lap = length/50
This prints the calculated number of laps
print('{:.2f}'.format(lap))
To call the function from main, use:
meters_to_laps(150)
Define a class named Money that stores a monetary amount. The class should have two private integer variables, one to store the number of dollars and another to store the number of cents. Add accessor and mutator functions to read and set both member variables. Add another function that returns the monetary amount as a double. Write a program that tests all of your functions with at least two different Money objects.
Answer:
#include<iostream>
using namespace std;
class Money{
private:
int dollars;
int cents;
public:
Money(int d=0, int c=0){
setDollar(d);
setCent(c);
}
void setDollar(int d){
dollars = d;
}
void setCent(int c){
cents = c
}
int getDollar() {
return dollars;
}
int getCent() {
return cents;
}
double getMoney(){
return (dollars + (cents/100));
}
};
// testing the program.
int main(){
Money Acc1(3,50);
cout << M.getMoney() << endl;
Money Acc2;
Acc2.setDollars(20);
Acc2.setCents(30);
cout <<"$" << Acc2.getDollars() << "." << Acc2.getCents() << endl;
return 0;
}
Explanation:
The C++ source code defines the Money class and its methods, the class is used in the main function as a test to create the instances of the money class Acc1 and Acc2.
The object Acc2 is mutated and displayed with the "setDollar and setCent" and "getDollar and getCent" methods respectively.
name 2 kitchen tools equipment or materials you are going to store or stack in the following drawers and cabinet 1.flat drawer 2.upper cabinet 3 . Small drawer near countertops 4.Lower cabinets 5.Lower cabinets under the sink
Answer:
silverware and dishwasher chemicles
Explanation:
3/4+7=
what is the answer
Answer:
7 3/4
Explanation:
3
4
+ 7
= (0 + 7) + (
3
4
+ 0 )
= 7 +
3
4
+ 0 × 4
= 7 +
3
4
+
0
4
= 7 +
3 + 0
4
= 7 +
3
4
=
7 3
4
Checkpoint 4.20 Assume hour is an int variable. Write an if statement that displays the message “Time for lunch” only if hour is equal to 12.
Answer:
if(hour == 12)
{cout << "Time for lunch";}
Explanation:
What is htc one mseven
"AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
You are going on vacation and want to take some work files. You need a storage device that is small enough to fit in your bag and preferably one that does not have plugs. Which device should you bring?
hard drive bus
flash drive
external hard drive
storage card
Answer:
Flash drive
Explanation:
How to write an algorithm to read and print a name?
I want the steps please
Answer:
Step 1: Obtain a description of the problem. This step is much more difficult than it appears. ...
Step 2: Analyze the problem. ...
Step 3: Develop a high-level algorithm. ...
Step 4: Refine the algorithm by adding more detail. ...
Step 5: Review the algorithm.
Explanation:
Online, it is easy to think of communication as “computer to ____________” rather than “_________ to ___________”.
a.
person, computer, person
b.
computer, person, computer
c.
person, person, person
d.
computer, person, person
Online, it is easy to think of communication as “computer to computer” rather than “person to person”. Thus, option D is correct.
What is communication?It is possible to describe communication as the act of passing the information between one person or group of people to the next. Communicating facilitates easy understanding of what a different person is trying to say or convey. There are two forms of communication: both verbal and nonverbal.
With the help of communication the person can tell and feature tthe data between the person and an group. In this, that data is given to the people and the data is not given to the person but it is rather given to the person. As this data is been transferred from one computer to another and then it reaches the people.
Therefore, option D is the correct option.
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What happens when two users attempt to edit a shared presentation in the cloud simultaneously? The second user is unable to open the presentation. When the second user logs on, the first user is locked out. A presentation cannot be shared in the cloud for this reason. A warning notice will alert the users that the presentation is in use.
Answer:
a warning notice will alert the users that the presentation is in use
Explanation:
I did it on edge
Answer:
D; A warning notice will alert the users that the presentation is in use.
Explanation:
Edge
In the central processing unit (CPU).
A) Causes data to be input into the system
B) Responsible for the logical order of processing and converting data.
C) Both
D) None of the above
As i said bro, in CPU there are ALU and CU where ALU is to do mathematics problem and CU where its to processing, converting data. CPU is like the brain of computer. But it can't be the input, the input can get through hardware, not CPU.
2. On the line below, create a bulleted list, using the square bullet option, of the following parks
and recreational areas in the United States: Blue Ridge Parkway, Golden Gate National
Recreation Area, Great Smoky Mountain National Park, Gateway National Recreation Area, and
Lincoln Memorial.
Answer:
Blue Ridge Parkway Golden Gate National Recreation AreaGreat Smoky Mountain National Park Gateway National Recreation Area Lincoln Memorial.
Explanation:
teehee
Answer:
Blue Ridge Parkway
Golden Gate National Recreation Area
Great Smoky Mountain National Park
Gateway National Recreation Area
Lincoln Memorial.
Explanation:
Explanation historical development of computer
Answer:
Brief History Of Computer. The computer as we know it today had its beginning with a 19th century English mathematics professor name Charles Babbage. ... Other developments continued until in 1946 the first general– purpose digital computer, the Electronic Numerical Integrator and Computer (ENIAC) was built.
Explanation:
Computers and electronics play an enormous role in today's society, impacting everything from communication and medicine to science.
Although computers are typically viewed as a modern invention involving electronics, computing predates the use of electrical devices. The ancient abacus was perhaps the first digital computing device. Analog computing dates back several millennia as primitive computing devices were used as early as the ancient Greeks and Romans, the most known complex of which being the Antikythera mechanism. Later devices such as the castle clock (1206), slide rule (c. 1624) and Babbage's Difference Engine (1822) are other examples of early mechanical analog computers.
The introduction of electric power in the 19th century led to the rise of electrical and hybrid electro-mechanical devices to carry out both digital (Hollerith punch-card machine) and analog (Bush’s differential analyzer) calculation. Telephone switching came to be based on this technology, which led to the development of machines that we would recognize as early computers.
The presentation of the Edison Effect in 1885 provided the theoretical background for electronic devices. Originally in the form of vacuum tubes, electronic components were rapidly integrated into electric devices, revolutionizing radio and later television. It was in computers however, where the full impact of electronics was felt. Analog computers used to calculate ballistics were crucial to the outcome of World War II, and the Colossus and the ENIAC, the two earliest electronic digital computers, were developed during the war.
With the invention of solid-state electronics, the transistor and ultimately the integrated circuit, computers would become much smaller and eventually affordable for the average consumer. Today “computers” are present in nearly every aspect of everyday life, from watches to automobiles.
The history of computers is one that began far back 2000 years ago in the city of Babylonia where there was the use of abacus and it has grown to now the use of digital computer as it start in 1642.
What is the history of computer?The history of computers is one that is more than 200 years but in the 19th century, there was the invention of mechanical calculating machines.
Note that the The 1st generation of computers was said to have existed from the year 1940 to 1955 and now it has grown to a whole new level.
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Create the HTML code for this
1.Font size for the text is 20px2.Background color for table dataiscyan and table headeris lightgrey.3.Text is center aligned.4.Height of the table is 200px andwidth is 500px.5.Border thickness 2px,colour black and collapsed
Answer:
index.html:
<!DOCTYPE html>
<html>
<head>
<title>Brainly</title>
<link href="style.css" rel="stylesheet" type="text/css" />
</head>
<body>
<table id="myTable">
<caption>Duty Roster for last two days</caption>
<tr><th>Day</th><th>Morning</th><th>Afternoon</th></tr>
<tr><td>Monday</td><td colspan="2">John</td></tr>
<tr><td>Tuesday</td><td rowspan="2">Tom</td><td>Peter</td></tr>
<tr><td>Wednesday</td><td>simon</td></tr>
</table>
</body>
</html>
style.css:
#myTable {
background-color: Cyan;
border-collapse: collapse;
height: 200px;
width: 500px;
font-size: 20px;
}
#myTable td,th {
border: 2px black solid;
text-align: center;
}
#myTable td:first-child, th {
background-color: lightgray;
font-weight: bold;
}
Convert (24) 10 to binary
Answer:
Decimal 24 to Binary Conversion
The base-10 value of 24 10 is equal to base-2 value of 110002.
I hope it's helpful!
Answer:
The binary of 24 is 11000
Your friend really likes talking about owls. Write a function owl_count that takes a block of text and counts how many words they say have word “owl” in them. Any word with “owl” in it should count, so “owls,” “owlette,” and “howl” should all count.
Here’s what an example run of your program might look like:
text = "I really like owls. Did you know that an owl's eyes are more than twice as big as the eyes of other birds of comparable weight? And that when an owl partially closes its eyes during the day, it is just blocking out light? Sometimes I wish I could be an owl."
owl_count(text)
# => 4
Hints
You will need to use the split method!
Here is what I have so far, it doesn not like count = 0 and i keep getting an error.
def owl_count(text):
count = 0
word = 'owl'
text = text.lower()
owlist = list(text.split())
count = text.count(word)
text = "I really like owls. Did you know that an owl's eyes are more than twice as big as the eyes of other birds of comparable weight? And that when an owl partially closes its eyes during the day, it is just blocking out light? Sometimes I wish I could be an owl."
print (count)
In this exercise we have to use the knowledge of computational language in python, so we find the code like:
The code can be found attached.
So let's write a code that will be a recognition function, like this:
def owl_count(text):"I really like owls. Did you know that an owls eyes are more than twice as big as the eyes of other birds of comparable weight?"
word = "owl"
texts = text.lower()
owlist = list(texts.split())
count = text.count(word)
num = [owlist, count] #num has no meaning just random var
print(num)
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Select the correct answer from each drop-down menu.
translate the entire program source code at once to produce object code, so a program written in
runs faster than an equivalent program written in
Answer:
A compiler translates a program written in a high level language
A compiler translate the entire program source code at once to produce object code, so a program written in low-level language runs faster than an equivalent program written in high-level language.
What is a compiler?A compiler can be defined as a software program that is designed and developed to translate the entire source code of program at once, so as to produce object code, especially a software program that is written in a high-level language into low-level language (machine language).
In conclusion, we can deduce that a compiler translate the entire program source code at once to produce object code, so a program written in low-level language runs faster than an equivalent program written in high-level language.
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Difference between a port and a connector
Explanation:
A connector is the unique end of a plug, jack, or the edge of a card that connects into a port. Port: The port has either holes or a slot that matches the plug or card being connected into the port. For example: cables are plugged into Ethernet ports, and cables and flash drives are plugged into USB ports.