system. Construct an ER diagram for keeping records for exam section of a college.​

Answers

Answer 1
Yes okay i dont know how to do that

Related Questions

why absolute reference is used in spreadsheet

Answers

Answer:

Absolute reference is used especially to keep the value or content of a column or row constant.

Explanation:

Cell referencing is one common and important concept in spreadsheets. A cell reference or cell address is a value, mostly alphanumeric, used to identify a specific cell or cell range in a worksheet.

In spreadsheets such as that of Microsoft - excel - there are basically two types of referencing.

i. relative referencing

ii. absolute referencing

iii. mixed referencing

Relative reference is the default cell reference. When a relative reference is copied and pasted across multiple cells, it changes depending on its relative position. This type of reference is especially useful when there is a need to apply same formula across multiple rows or columns.

Absolute reference, on the other hand, will not change even though it is copied across multiple cells. It is used especially to keep the value or content of a column or row constant.

Mixed reference is a hybrid of the relative and absolute references.

go sub to VolleyBall_chan on y.o.u.t.u.b.e

Answers

okkkkkkkkkkkkkkkkkkk God bless you!

Answer go to y o u t u b e type in volleyball_chan hit the sub button

Explanation:

A Key Factor in Controlling Your Anger Is Using Passive behaviour.T/F

Answers

Answer:

The answer is "True".

Explanation:

Assertiveness means that others are encouraged to be open, honest about their thoughts, wishes and feelings so how they can act properly. Assertive behavior: be open and communicate wishes, ideas and feelings, as well as encourage others to do likewise. Please visit our Emotional Regulation page. A major aspect is the ability to control your anger. Once you are quiet or aggressive, work very hard.

Kesley has been hired to set up a network for a large business with ten employees. Which of the factors below will be
least important to her in designing the company's network?
the tasks performed by each computer on the network
the number of hours each employee works
O the number of computers that will be on the network
the way in which business documents are shared in the organization
TURN IT IN
NEXT QUESTION
ASK FOR HELP

Answers

The way the documents are shared

write short notes about monitor printer and speaker​

Answers

Answer:

A computer monitor is an electronic device that shows pictures for computers. Monitors often look similar to televisions. The main difference between a monitor and a television is that a monitor does not have a television tuner to change channels. Monitors often have higher display resolution than televisions.

A printer is a device that accepts text and graphic output from a computer and transfers the information to paper, usually to standard size sheets of paper. Printers vary in size, speed, sophistication, and cost. In general, more expensive printers are used for higher-resolution color printing.

Speakers receive audio input from the computer's sound card and produce audio output in the form of sound waves. Most computer speakers are active speakers, meaning they have an internal amplifier which allows you to increase the volume, or amplitude, of the sound.

Given the declaration: char a[] = "Hello"; char *p = a, *q; what operations are valid syntactically? Select all that apply. Group of answer choices q = &&a[0]; q = &&a; *q = *(&a[0]); q = &(*p);

Answers

Answer:

The valid operations are:

*q = *(&a[0]);  and q = &(*p);

Explanation:

Given

The above declarations

Required

The valid operations

*q = *(&a[0]);  and q = &(*p); are valid assignment operations.

However, q = &&a[0]; q = &&a; are invalid because:

The assignment operations intend to implicitly cast the char array a to pointer q. C++ does not allow such operation.

Hence, *q = *(&a[0]);  and q = &(*p); are valid

Another way to know the valid operations is to run the program and look out for the syntax errors thrown by the C++ compiler

When an item is gray that means...
A. The item only works with another application
B. The item has been selected
C. The item is unavailable
D. The item has been deleted
A,B,C,orD, can anyone please help?

Answers

Answer:

B. The item has been selected

Answer:

C

Explanation:

When an item is unavailable, usually referring to the Technology field, it is gray. Gray items are things that are not created anymore, sold out or not enough supply. The color gray is usually used to symbol something bad, and not having a product is considered bad. Using our background knowledge, we can concude that the answer is option C.

find the summation of even number between (2,n)​

Answers

Answer:

The program in python is as follows:

n = int(input("n: "))

sum = 0

for i in range(2,n+1):

   if i%2 == 0:

       sum+=i

print(sum)

Explanation:

This gets input n

n = int(input("n: "))

This initializes sum to 0

sum = 0

This iterates through n

for i in range(2,n+1):

This checks if current digit is even

   if i%2 == 0:

If yes, take the sum of the digit

       sum+=i

Print the calculated even sum

print(sum)

evaluate (0.999)^8, to six places of decimal​

Answers

Answer:

Here is your answer 0.99202794407

Selecting missing puppies 1 # Select the dogs where Age is greater than 2 2 greater_than_2 = mpr [mpr. Age > 2] 3 print(greater_than_2) Let's return to our DataFrame of missing puppies, which is loaded as mpr. Let's select a few different rows to learn more about the other missing dogs. 5 # Select the dogs whose Status is equal to Still Missing 6 still_missing = mpr[mpr. Status == 'Still Missing'] 7 print (still_missing) Instructions 100 XP • Select the dogs where Age is greater than 2. 9 # Select all dogs whose Dog Breed is not equal to Poodle 10 not-poodle = mpr [mpr.Dog Breed != 'Poodle'] 11 print(not_poodle) • Select the dogs whose Status is equal to Still Missing. • Select all dogs whose Dog Breed is not equal to Poodle. Run Code Submit Answer * Take Hint (-30 XP) IPython Shell Slides Incorrect Submission Did you correctly define the variable not_poodle ? Expected something different. # Select all dogs whose Dog Breed is not equal to Poodle not_poodle = mpr[mpr.Dog Breed != 'Poodle'] print(not_poodle) File "", line 10 not_poodle = mpr [mpr.Dog Breed != 'Poodle'] Did you find this feedback helpful? ✓ Yes x No SyntaxError: invalid syntax

Answers

Answer:

# the dog dataframe has been loaded as mpr

# select the dogs where Age is greater than 2

greater_than_2 = mpr [mpr. age > 2]

print(greater_than_2)

# select the dogs whose status is equal to 'still missing'

still_missing = mpr[mpr. status == 'Still Missing']

print(still_missing)

# select all dogs whose dog breed is not equal to Poodle

not_poodle = mpr [mpr.breed != 'Poodle']

print(not_poodle)

Explanation:

The pandas dataframe is a tabular data structure that holds data in rows and columns like a spreadsheet. It is used for statistical data analysis and visualization.

The three program statements above use python conditional statements and operators to retrieve rows matching a given value or condition.

The first PCI bus has a 32-bit data path, supplied 5 V of power to an adapter card, and operated at what frequency?
a. 88 MHz
b.64 MHz
c. 16 MHz
d. 33 MHz

Answers

Answer:

D. 33mhz

Explanation:

The PCI is short for peripheral component interconnect. This has speed and was made by Intel. At first it was made to be 32 bits and with a speed that 2as up to 33 megahertz. But other versions that followed had 64 bit and 66 megahertz.

This bus can stay with other buses and can work in synchronous or the asynchronous mode.

What are TWO examples of soft skills?
computer programming
o responsibility
certification
communication
troubleshooting

Answers

Computer programming and throubleshooting

The small flash memory used in
protable device like Laptop

Answers

Answer: flash drive

Explanation:

Flash drives are refered to as small, portable storage devices which makes use of a USB interface in order to be connected to a laptop.

Flash cards are removable and rewritable. They are mainly used to store data. Flash cards can be found in computers, laptops, digital cameras etc.

A practice in which eavesdroppers drive by buildings or park outside and try to intercept wireless network traffic is referred to as: Group of answer choices cybervandalism. driveby downloading. war driving. sniffing. driveby tapping.

Answers

Answer:

war driving.

Explanation:

Data theft can be defined as a cyber attack which typically involves an unauthorized access to a user's data with the sole intention to use for fraudulent purposes or illegal operations. There are several methods used by cyber criminals or hackers to obtain user data and these includes DDOS attack, SQL injection, man in the middle, phishing, etc.

Generally, the two (2) essential privacy concerns in the field of cybersecurity are knowing how personal data are collected and essentially how they're used by the beneficiaries or end users.

War driving can be defined as a form of cyber attack which typically involves having eavesdroppers in a moving vehicle drive by buildings or park outside so as to avail them the opportunity of intercepting a wireless network traffic using a smartphone or laptop computer and illegitimately obtain sensitive user informations for further unauthorized use or to perform other fraudulent activities.

A buffer is filled over a single input channel and emptied by a single channel with a capacity of 64 kbps. Measurements are taken in the steady state for this system with the following results:

Average packet waiting time in the buffer = 0.05 seconds
Average number of packets in residence = 1 packet
Average packet length = 1000 bits

The distributions of the arrival and service processes are unknown and cannot be assumed to be exponential.

Required:
What are the average arrival rate λ in units of packets/second and the average number of packets w waiting to be serviced in the buffer?

Answers

Answer:

a) 15.24 kbps

b) 762 bits

Explanation:

Using little law

a) Determine the average arrival rate (  λ  ) in units of packets/s

λ  = r / Tr  --- 1

where ; r = 1000 bits , Tr = Tw + Ts = 0.05 + (( 1000 / (64 * 1000 ))  = 0.0656

back to equation 1

λ = 1000 / 0.0656 = 15243.9 = 15.24 kbps

b) Determine average number of packets w to be served

w =  λ * Tw =  15243.9 * 0.05 = 762.195 ≈ 762 bits

Horizontal Navigation List Styles
Go to the Horizontal Navigation List Styles section. Karen has added a second navigation list that she wants to display horizontally. For all list items within the horizontal navigation list, create a style rule that displays the items as blocks with a width of 12.5% floated on the left margin.
Here is my code:
/* Horizontal Navigation List Styles */
.horizontal li {
display: block;
width: 12.5%;
float: left;
}
It's coming through as just a line and I have no idea how to fix it, please help!

Answers

Answer:

Explanation:

The best way to do this would be to use the following line of code

clear: left;

This would make sure that there are no floating elements (li's in this scenario) on the left side of each element. Which in this navigation list would be each individual element, causing it to move each element underneath the previous element. Therefore the entire CSS code would be

.horizontal li {

   display: block;

   width: 12.5%;

   float: left;

   clear: left;

   }

An example can be seen in the attached picture below.

Suppose that in a 00-11 knapsack problem, the order of the items when sorted by increasing weight is the same as their order when sorted by decreasing value. Give an efficient algorithm to find an optimal solution to this variant of the knapsack problem, and argue that your algorithm is correct.

Answers

Answer:

Following are the response to the given question:

Explanation:

The glamorous objective is to examine the items (as being the most valuable and "cheapest" items are chosen) while no item is selectable - in other words, the loading can be reached.

Assume that such a strategy also isn't optimum, this is that there is the set of items not including one of the selfish strategy items (say, i-th item), but instead a heavy, less valuable item j, with j > i and is optimal.

As [tex]W_i < w_j[/tex], the i-th item may be substituted by the j-th item, as well as the overall load is still sustainable. Moreover, because [tex]v_i>v_j[/tex] and this strategy is better, our total profit has dropped. Contradiction.

High-level modulation is used: when the intelligence signal is added to the carrier at the last possible point before the transmitting antenna. in high-power applications such as standard radio broadcasting. when the transmitter must be made as power efficient as possible. all of the above.

Answers

Answer:

Option d (all of the above) is the correct answer.

Explanation:

Such High-level modulation has been provided whenever the manipulation or modification of intensity would be performed to something like a radio-frequency amplifier.Throughout the very last phase of transmitting, this then generates an AM waveform having relatively high speeds or velocity.

Thus the above is the correct answer.

NO LINKS
Write a C++ program to accept a 5 digit integer and to validate the input based on the following rules.

Rules

1) The input number is divisible by 2. 2) The sum of the first two digits is less than last two digits. if the input number satisfies all the rules, the system prints valid and invalid, otherwise,

Example 1:

Enter a value: 11222

Output: Input number is valid

Example 2:

Enter a value: 1234

Output: Input number is invalid​

Answers

Answer:

#include <iostream>

#include <string>

#include <regex>

using namespace std;

int main()

{

   cout << "Enter a 5-digit number: ";

   string number;

   cin >> number;

   bool valid = regex_search(number, regex("^\\d{4}[02468]$"));

   if (valid) {

       valid = stoi(number.substr(0, 1)) + stoi(number.substr(1, 1))  

           < stoi(number.substr(3, 1)) + stoi(number.substr(4, 1));

   }

   cout << number << (valid ? " is valid" : " is invalid");

}

Explanation:

Regular expressions can do all of your checking except for the sum of digits check. The checks are i.m.o. easiest if you don't treat the input as a number, but as a string with digits in it.

The regex means:

^ start of string

\d{4} exactly 4 digits

[02468] one of 0, 2, 4, 6 or 8 (this is what makes it even)

$ end of string

how can you explain that algorithm and flowchart are problem solving tools?​

Answers

Answer:

Algorithm and flowchart are the powerful tools for learning programming. An algorithm is a step-by-step analysis of the process, while a flowchart explains the steps of a program in a graphical way. Algorithm and flowcharts helps to clarify all the steps for solving the problem.

In Python, you can specify default arguments by assigning them a value in the function definition.

Answers

Answer:

use the input function to ask them their name like name = input(" enter name?: ") or

def greet(name, msg):

    # This function greets to  the person with the provided message

 print("Hello", name + ', ' + msg)  

greet("Andy", "Good morning!")

def greet(name, msg="Good morning!"):

   # This function greets to

     the person with the

     provided message.  

     If the message is not provided,

     it defaults to "Good

     morning!  

   print("Hello", name + ', ' + msg)

greet("Kate")

greet("Bruce", "How do you do?")

Explanation:

it's one of these three but not sure

C++Assign to maxSum the max of (numA, numB) PLUS the max of (numY, numZ). Use just one statement. Hint: Call FindMax() twice in an expression.#include using namespace std;double FindMax(double num1, double num2) { double maxVal; // Note: if-else statements need not be understood to complete this activity if (num1 > num2) { // if num1 is greater than num2, maxVal = num1; // then num1 is the maxVal. } else { // Otherwise, maxVal = num2; // num2 is the maxVal. } return maxVal;}int main() { double numA; double numB; double numY; double numZ; double maxSum; cin >> numA; cin >> numB; cin >> numY; cin >> numZ; /* Your solution goes here */ cout << "maxSum is: " << maxSum << endl; return 0;}

Answers

Answer:

Replace the comment with:

maxSum =FindMax(numA,numB)+FindMax(numY,numZ);

Explanation:

Required

The statement to add up the two maximum from the functions

To do this, we have to call FindMax for both arguments i.e.

FindMax(numA,numB) and FindMax(numY,numZ) respectively

Next, use the + sign to add up the returned value.

So, the complete statement is:

maxSum =FindMax(numA,numB)+FindMax(numY,numZ);

See attachment for complete program

Use the drop-down menus to complete the steps for rearranging the layout of a form.

1. Open the form in
✔ Design
view.

2.
✔ Press Ctrl+A
to highlight all of the fields.

3. Under Form Design Tools, select the
✔ Arrange
tab.

4. Choose the Remove Layout button.

5. Reorder and arrange the layout as desired.

6. Review the changes in the
✔ Layout
view.

7. Click Save.

Just did it.

Answers

Answer:

1. Open the Form

2. Arrange tabs

3. Layout view

4. Reoder and arrange the Layout as desired

5. Press Ctrl + A

6. Choose the remove Layout button

7. Click Save

I am not sure

The complete steps for rearranging the layout of a form are in the order:

1, 2, 3, 4, 5, 6, and 7.

What is a form layout?

A form layout is the arrangement of all elements, components, and attributes of your form and the placement of the form on a specific page.

When rearranging the layout of the form, the steps to take are as follows:

Open the form in Design View (this means that the form needs adjustment and rearrangement.Press Ctrl+A (this control all function) helps to highlight all the features in the form layout fields.Under Form Design Tools, select the Arrange tab.Choose the Remove Layout button.Reorder and arrange the layout as desired.Review the changes in the Layout view.Click Save.

Learn more about form layout arrangement here:

https://brainly.com/question/9759966

#SPJ2

Write a program that accepts a date in the form month/day/year and outputs whether or not the date is valid. For example, 5/24/1962 is valid, but 9/31/2000 is not. (September has only 30 days.)

Answers

Answer:

Here is the code.

Explanation:

#include <stdlib.h>

#include <stdio.h>

int check_month(int month);

int check_date(int year, int month, int day);

void display_date(int year, int month, int day);

int check_year(int year);

int main (void)

{

int year, month, day;

int valid;

printf("\t\t\t\tEnter Date \n");

printf("\nyear (yyyy): ");

scanf("%d",&year);

printf("month: ");

scanf("%d",&month);

printf("day: ");

scanf("%d", &day);

valid = check_month(month);

if (valid)

{

valid = check_date(year, month, day);

}

if (valid)

{

display_date(year, month, day);

printf("is a valid date. \n");

}

else

{

display_date(year, month, day);

printf("is a illegal date. \n");

}

system ("pause");

return 0;

}

int check_month(int month)

{

int flag;

if (month>=1 && month<=12)

flag = 1;

else

flag = 0;

return flag;

}

int check_date(int year, int month, int day)

{

int valid;

int leep_year;

switch (month)

{

case 1:

case 3:

case 5:

case 7:

case 8:

case 10:

case 12:

if (day>=1 && day<=31)

valid = 1;

else

valid = 0;

break;

case 2:

leep_year = check_year(year);

if (leep_year)

{ if (day>=1 && day<=29)

valid = 1;

else

valid = 0;

}

else

{ if (day>=1 && day<=28)

valid = 1;

else

valid = 0;

}

break;

case 4:

case 6:

case 9:

case 11:

if (day>=1 && day<=30)

valid = 1;

else

valid = 0;

break;

}

return valid;

}

int check_year(int year)

{

int leep_year;

if (year%4==0)

{

if (year%100==0)

{

if (year%400==0)

leep_year = 1; // 1600, 2000

else

leep_year = 0; // 1700, 1800, 1900, 2100

}

else

{

leep_year = 1; // 2004, 1996

}

}

else

{

leep_year = 0; // 2003, 2011

}

return leep_year;

}

void display_date(int year, int month, int day)

{

if (month == 1)

printf("January");

else if (month == 2)

printf("February");

else if (month == 3)

printf("March");

else if (month == 4)

printf("April");

else if (month == 5)

printf("May");

else if (month == 6)

printf("June");

else if (month == 7)

printf("July");

else if (month == 8)

printf("August");

else if (month == 9)

printf("September");

else if (month == 10)

printf("October");

else if (month == 11)

printf("November");

else if (month == 12)

printf("December");

else

printf("The Month enter is not valid.\n");

printf(" %d, %d ",day,year);

}

Consider the following class, which uses the instance variable balance to represent a bank account balance.

public class BankAccount {

private double balance;


public double deposit(double amount) {

/* missing code */

}

}
The deposit method is intended to increase the account balance by the deposit amount and then return the updated balance. Which of the following code segments should replace /* missing code */ so that the deposit method will work as intended?
a.
amount = balance + amount;
return amount;
b.
balance = amount;
return amount;
c.
balance = amount;
return balance;
d.
balance = amount;, , return balance;,
balance = balance + amount;
return amount;
e.
balance = balance + amount;
return balance;

Answers

Answer:

e.

balance = balance + amount;

return balance;

Explanation:

Required

Code to update account balance and return the updated balance

The code that does this task is (e).

Assume the following:

[tex]balance = 5000; amount = 2000;[/tex]

So, code (e) is as follows:

balance = balance + amount; [tex]\to[/tex]

[tex]balance = 5000 + 2000[/tex] [tex]\to[/tex]

[tex]balance = 7000[/tex]

Here, the updated value of balance is 7000

So: return balance

will return 7000 as the updated account balance

Other options are incorrect

Which statement describes what happens when a user configures No Automatic Filtering in Junk Mail Options?
O No messages will ever be blocked from the user's mailbox.
O Messages can still be blocked at the server level
O Messages cannot be blocked at the network firewall
O Most obvious spam messages will still reach the client computer
ANSWER IM TIMED

Answers

Answer: Most obvious spam messages will still reach the client computer

Explanation:

It should be noted that by default, usually the junk email filter is already set to No Automatic Filtering.

When a user configures No Automatic Filtering in Junk Mail Options, it should be noted that most obvious spam messages will still reach the client computer.

Therefore, the correct option is D.

A wireless router is what kind of networking device?
Select one
a. End device
b. Intermediary device
c Peripheral Device
d. Connecting Device​

Answers

Answer:

D, routers enable us to connect to the internet.

space bar in computer​

Answers

Answer: Its the one in the middle the really long thingy it looks like a rectangle

Explanation:

ITS IN THE MIDDLE

asdcvnmn bvcdxszasdfghjk.

Answers

Answer:

fewrugbrubpwerivrib

Explanation:

vbhresibvhresiupvkbjriururbvurfiuibvuefsbiuiuvuib

explain about primary memory?​

Answers

Answer:

Primary memory is computer memory that a processor or computer accesses first or directly. It allows a processor to access running execution applications and services that are temporarily stored in a specific memory location. Primary memory is also known as primary storage or main memory.

Explanation:

Other Questions
a) Qu son las enzimas y por qu se las denomina catalizadores biolgicos? Which three sentences in this excerpt from Edgar Allan Poes The Tell-Tale Heart show that the narrator feels his crime will not be discovered? (y-4)^0 - 3y^0 for y = 1 Brayden says that the probability of catching a cold is 1/2 because there are two possible outcomes, catching a cold and not catching a cold. Is he correct? Explain. A six sided number cube is rolled twice. What is probability of rolling a 5 and then an even number? PLEASE HELP ME PLEASE AS SOON AS YOU CANEXPLAINATION = BRAINLIESTTHANK YOU SO MUCH If the activation energy required for a chemical reaction were reduced, what would happen to the rate of the reaction?O The rate would increase.The rate would decrease.O The rate would remain the same.O The rate would be zero 2. What is the best estimate of the value of In 16? I need help with this question in Spanish, please. Kumar bought some mangoes. The price of each mango () is found to be 6 more than the total number of mangoes bought by him and the total amount paid for all the mangoes is 280. Represent the situation mathematically and find the total number of mangoes bought by Kumar. Which ordered pairs are solutions to the equation 5x+12y=12? What is the answer? To this question? Which of the following lists the relative strengths of the fundamental forces from strongest to weakest?A. Strong nuclear force weak nuclear force, gravitational force, electrostatic forceB. Gravitational force, strong nuclear force electrostatic force, weak nuclear forceC. Electrostatic force, gravitational force, weak nuclear force, strong nuclear forceD. Strong nuclear force, electrostatic force, weak nuclear force, gravitational force Helpppp does anyone know Find the center and radius of x^2 + y^2 +6x - 7=0 The diagram below indicates the nucleus of an animal cell. nucleus Image courtesy of NIGUSNIH How does the nucleus of the cell contribute to the overall function of the cell? A. The nucleus changes sunlight to cellular food. B. The nucleus makes energy for the cell. C. The nucleus provides structural support for the cell. D. The nucleus regulates all cellular activity. Provide a 3 to 4 sentence overview of the Microsoft Windows features. What are the effect of gaming in the hospitality industry. The function f(t)=5600(1.006)^{10t}f(t)=5600(1.006) 10t represents the change in a quantity over decades. What does the constant 1.006 reveal about the rate of change of the quantity? Round 263.492 to the nearest tenth.