Answer:
The program in C++ is as follows:
#include <iostream>
using namespace std;
int main(){
int questions, answer;
cout<<"Questions: ";
cin>>questions;
int answerkey[questions];
cout<<"Enter answer keys: ";
for(int i = 0; i< questions; i++){
cin>>answerkey[i]; }
int correct = 0;
cout<<"Enter answers: ";
for(int i = 0; i< questions; i++){
cin>>answer;
if(answer == answerkey[i]){
correct++; } }
cout<<"Correct answers: "<<correct<<endl;
cout<<"Percentage correct : "<<(100 * correct)/questions<<"%";
return 0;
}
Explanation:
This declares the number of questions and the answers submitted to each equation
int questions, answer;
Prompt to get the number of questions
cout<<"Questions: ";
This gets input for the number of questions
cin>>questions;
This declares the answerkey as an array
int answerkey[questions];
Prompt to get the answer key
cout<<"Enter answer keys: ";
This iteration gets the answer key for each question
for(int i = 0; i< questions; i++){
cin>>answerkey[i]; }
This initializes the number of correct answers to 0
int correct = 0;
Prompt to get the enter the answers
cout<<"Enter answers: ";
This iterates through the answer keys
for(int i = 0; i< questions; i++){
This gets the answer to each question
cin>>answer;
This compares the answer to the answer key of the question
if(answer == answerkey[i]){
If they are the same, correct is incremented by 1
correct++; } }
Print the number of correct answers
cout<<"Correct answers: "<<correct<<endl;
Print the percentage of correct answers
cout<<"Percentage correct : "<<(100 * correct)/questions<<"%";
What protects your computer so that it doesn’t get a computer virus?
Internet Browser
Antivirus Software
Keyboard Protector
My Teacher
Answer:
Antivirus Software
Explanation:
I believe Antivirus Software.
Sorry if I am wrong.
Answer:
Antivirus Software
Explanation:
Antivirus scans the incoming files or code that has been passed through your network traffic. Companies who build these softwares maintain a database of viruses that are already known. That database teaches the antivirus to remove, flag or quarantine any viruses in your computer.
What tasks do date entry macros commonly perform?
Answer:
set a default date
Explanation:
Date entry macros are used to seta default date.
Date macros can be used to create custom date formats.
Software that enables the organization to centralize data is called A. Data Repository B. Data Base Management System C. Data Warehouse D. Data Mart E. Data File
Answer:
B. Data Base Management System
Explanation:
A database management system (DBMS) can be defined as a collection of software applications that typically enables computer users to effectively and efficiently create, store, modify, retrieve, centralize and manage data or informations in a database. Generally, it allows computer users to efficiently retrieve and manage their data with an appropriate level of security.
Generally, a database management system (DBMS) acts as an intermediary between the physical data files stored on a computer system and any software application or program.
A data dictionary can be defined as a centralized collection of information on a specific data such as attributes, names, fields and definitions that are being used in a computer database system.
In a data dictionary, data elements are combined into records, which are meaningful combinations of data elements that are included in data flows or retained in data stores.
This ultimately implies that, a data dictionary found in a computer database system typically contains the records about all the data elements (objects) such as data relationships with other elements, ownership, type, size, primary keys etc. This records are stored and communicated to other data when required or needed.
Hence, a software that enables the organization to centralize data, manage the data efficiently while providing authorized users a significant level of access to the stored data, is called a Data Base Management System (DBMS).
Produce a program using a loop that requests for 8 floating point numbers from a user.once provided the program should calculate the average of all numbers that are less than 10.5
Answer:
The program in Python is as follows:
total = 0
count = 0
for i in range(8):
num = float(input())
if num < 10.5:
total+=num
count+=1
print("Average: ",total/count)
Explanation:
This initializes the total to 0
total = 0
This initializes the count to 0
count = 0
This loop is executed 8 times
for i in range(8):
This request for float number
num = float(input())
If input is less than 10.5
if num < 10.5:
The sum is taken
total+=num
And count is incremented by 1
count+=1
The loop ends here
This calculates and prints the average
print("Average: ",total/count)
write a program to display your name, age and address in c programming
Answer:
The program in C is as follows:
#include <stdio.h>
int main(){
char name[] = "Mr. Royal";
int age = 20;
char address[] = "Lagos, Nigeria";
printf("Your name is %s.\n", name);
printf("You are %d years old\n", age);
printf("Your address is %s.", address);
return 0;
}
Explanation:
This initializes the name
char name[] = "Mr. Royal";
This initializes the age
int age = 20;
This initializes the address
char address[] = "Lagos, Nigeria";
This prints the name
printf("Your name is %s.\n", name);
This prints the age
printf("You are %d years old\n", age);
This prints the address
printf("Your address is %s.", address);
Change the necessary details to yours
A major university develops an assessment that is meant to provide data on whether potential students will be successful at the university level. If there is a relationship between the results of the assessment and student success, that will best indicate that the assessment has:___.
Answer:
Predictive validity.
Explanation:
A correlation can be defined as a numerical measure of the relationship existing between two variables (x and y).
In Mathematics and Statistics, a group of data can either be negatively correlated, positively correlated or not correlated at all.
1. For a negative correlation: a set of values in a data increases, when the other set begins to decrease. Here, the correlation coefficient is less than zero (0).
2. For a positive correlation: a set of values in a data increases, when the other set also increases. Here, the correlation coefficient is greater than zero (0).
3. For no or zero correlation: a set of values in a data has no effect on the other set. Here, the correlation coefficient is equal to zero (0).
A predictive validity can be defined as a measure of the extent to which a test score on a scale is able to predict scores based on certain criteria. Thus, it's a measure of the degree to which a certain criteria can predict future behavior or performance.
One of the most common area in which predictive validity is used is in university or college admissions such as in how scores on an assessment or test are related to performance based on a standard or criterion.
In this scenario, there exists a statistical relationship between the results of the assessment conducted and number of students who were successful. Thus, this will best indicate that the assessment has predictive validity.
3. Why is human resource plan made
Answer: See explanation
Explanation:
Human Resource Planning refers to the process whereby the future human resource requirements of an organization is predicted and how the current human resources that the organization has can be used to fulfill the goals.
Human resources planning is made as it's useful helping an organization meet its future demands by supplying the organization with the appropriate people.
Human resource planning also allows organizations plan ahead in order to have a steady supply of effective and skilled employees. It also brings about efficient utilization of resources. Lastly, it leads to better productivity and organizational goals will be achieved.
Amy’s new summer job at the pool will put $9 per hour. Which term describes this type of hourly income?
A. Salary
B. Take-home pay
C. Wage
D. All of the above
Answer:
d
Explanation:
Precipitation patterns in gulf Mexico
Select statements about Multiprocessors that are FALSE. a. Asymmetric multiprocessors are a popular form of tightly coupled architecture b. Symmetric multiprocessors are a popular form of tightly coupled architecture c. Tightly coupled multiprocessors share a single centralized memory, which requires an operating system to synchronize processes carefully to ensure protection d. Loosely coupled multiprocessors have a physically distributed memory and are also known as distributed systems
Answer:
The statement about Multiprocessors that is FALSE is:
a. Asymmetric multiprocessors are a popular form of tightly coupled architecture
Explanation:
Symmetric multiprocessors house two or more identical processors sharing a single main memory. The multiprocessors are tightly coupled, and all of them can access all the connected devices without any preferential treatment of one over the others. This is unlike asymmetric multiprocessors that do not share a single main memory. Instead, they have distributed memories.
g Write a function named find_min that takes two numbers as arguments and returns the minimum of the two. (Behavior is not specified for which to return, if they are even -- we won't test that case.) For example: Given 2 and 4, the function returns 2 as the minimum.
Answer:
Following are the code to the given question:
#include <iostream>//header file
using namespace std;
void find_min(int x,int y)//defining a method find_min that takes two parameters
{
if(x<y)//use if to check x less than y
{
cout<<x;//print value x
}
else//else block
{
cout<<y;//print value y
}
}
int main()//main method
{
int x,y;//defining integer variable
cout<<"Enter first number: ";//print message
cin>>x;//input value
cout<<"Enter second number: ";//print message
cin>>y;//input value
find_min(x,y);//calling method
return 0;
}
Output:
Enter first number: 4
Enter second number: 2
2
Explanation:
In this code, a method "find_min" that takes two integer variable "x,y" in its parameters and use if block to check its value and print is value.
In the main method, we declared two integer variable "x,y" that takes value from user-end, and pass the value into the method that prints its calculated value.
Scenario: A robot is sitting in a chair with its arms facing down. Write an algorithm, using pseudocode, to make the robot:
1. stand up2. walk forward until it senses a wall3. turn around4. walk back to the chair5. sit down in its original starting positionFinally, output the total number of steps taken.Commands--------In addition to our standard pseudocode commands, you must also use the following robot control commands:sitstandstep (one step forward)raise arms (parallel to floor)lower arms (pointing to floor)sense (only if arms are raised)turn (90 degrees right)Immediately after issuing a sense command, you can check whether the robot is at the wall as follows:if at wallor alternativelyif not at wallAssumptions-----------You must assume the following facts:The robot's initial sitting position is directly facing the target wall.There are no obstacles between the robot and the wall.The wall is 1 or more exact steps from the chair.The wall is sensed when it is less than 1 step from the robot's arms.The length of the robot's arms are slightly less than the length of 1 step.Your solution-------------Your solution must include all of the following:Adequate commentsInitialization and use of at least one variableSequential flow of controlConditional flow of controlIterative flow of controlHandling of any special casesOutput of the total number of steps takenYour solution-------------Your solution must include all of the following:Adequate commentsInitialization and use of at least one variableSequential flow of controlConditional flow of controlIterative flow of controlHandling of any special casesOutput of the total number of steps taken
Solution :
[tex]\text{Algorithm to}[/tex] stand [tex]$\etxt{up:}$[/tex]
step [tex]1[/tex]: [tex]$\text{stand}$[/tex]
step 2: [tex]\text{raise arms}[/tex]
[tex]\text{Algorithm to}[/tex] walk [tex]$\text{until it senses}$[/tex] a wall:
step [tex]1[/tex]: [tex]$\text{stand}$[/tex]
step 2: [tex]\text{raise arms}[/tex]
step 3: [tex]$\text{wallSensed}$[/tex]=false
step 4: [tex]$\text{numberOfSteps}$[/tex] = 0
step 5: if([tex]$\text{wallSensed}$[/tex]==true) then
[tex]\text{lower arms}[/tex]
step
else
if(sense)
[tex]$\text{wallSensed}$[/tex]=true;
else
step
[tex]$\text{numberOfSteps}$[/tex]++;
step 6: display [tex]$\text{numberOfSteps}$[/tex] to reach the wall
[tex]\text{Algorithm to}[/tex] turn around:
Step [tex]1[/tex]: if([tex]$\text{wallSensed}$[/tex]==true) then
turn
[tex]\text{raise arms}[/tex]
turn
[tex]\text{Algorithm to}[/tex] walk back[tex]$\text{ to the chair}$[/tex]:
Step [tex]1[/tex]: [tex]$\text{turn around}$[/tex]
Step 2: for i=[tex]1[/tex] to [tex]$\text{numberOfSteps}$[/tex] do
step
[tex]\text{Algorithm to}[/tex] sit back down:
Step [tex]1[/tex]: sit
Step 2: Lower arms
What is a
a program
Answer:
-a collection of related measures or activities aimed at achieving a specific long-term goal.
-a set of pre-programmed software instructions for controlling the operation of a computer or other machine
-provide (a computer or other machine) with pre-programmed instructions for completing a task automatically
-Organize according to a schedule or plan.
Explanation:
Answer:
A program is an set of instructions given by a computer to perform particular task
how you plan to deal with stress?
list with ecamples five important applications areas of computer today
Answer:
Banking
Education
Business
Engineering and Architectural designs
Health
Explanation:
Banking : Shifting from the manual method of having to input information into hard book ledgers. Data and payment information can now be stored on computers. This may be used to prevent information duplication, forecasting and efficient payment purposes.
Education : With the use of computers today, students can now take computer based tests which are not only easily accessible and curtails geographical issues, they are also faster.
Business : With computers, businesses can now manage and their store customer information, inventory management and sales tracking.
Engineering and Architectural designs : With computers, thesw fields can now boast of computer aided designs which allows experts produce both 2 and 3 - dimensional prototype of equipments, buildings, building plans or other engineering structures.
Health : Adequate health record, patient appointment, digitally monitored pulse rate are some of the uses of computers in medicine.
1 convert (101011)2 ( )10 ? convert(596)10= ( )16 ? convert( 101011101)2 ( )16 ? convert(37)10= ( )2 ?
(a) convert (101011)₂ = ( )₁₀ ?
(b) convert(596)₁₀= ( )₁₆ ?
(c) convert( 101011101)₂ = ( )₁₆ ?
(d) convert(37)₁₀= ( )₂ ?
Answer:(a) (101011)₂ = ( 43)₁₀
(b) (596)₁₀= ( 254)₁₆
(c) ( 101011101)₂ = ( 15D)₁₆
(d) (37)₁₀= ( 100101)₂
Explanation:(a) convert (101011)₂ = ( )₁₀
This means that (101011)₂ be converted to base 10 (decimal).
To convert from binary to decimal, find the sum of the binary digits times their power of 2. i.e
(101011)₂ = 1 x 2⁵ + 0 x 2⁴ + 1 x 2³ + 0 x 2² + 1 x 2¹ + 1 x 2⁰
(101011)₂ = 1 x 32 + 0 x 16 + 1 x 8 + 0 x 4 + 1 x 2 + 1 x 1
(101011)₂ = 32 + 0 + 8 + 0 + 2 + 1
(101011)₂ = 43₁₀
Therefore, (101011)₂ = ( 43)₁₀
(b) convert(596)₁₀= ( )₁₆
This means that (596)₁₀ be converted to base 16 (hexadecimal).
To convert from decimal to hexadecimal,
i. start by dividing the decimal number by 16 taking note of the result and the remainder.
ii. divide the result obtained in (i) by 16 and take note of the new result and the remainder.
iii. repeat steps i and ii until the result is 0.
iv. the result is a combination of the remainders starting from the last.
16 | 596
16 | 37 r 4
16 | 2 r 5
| 0 r 2
Now combine the remainders starting from the bottom up. i.e
254₁₆
Therefore, (596)₁₀= ( 254)₁₆
(c) convert ( 101011101)₂ = ( )₁₆
This means that (101011101)₂ be converted to base 16 (hexadecimal).
To convert from binary to hexadecimal,
i. starting from the rightmost bit, group the binary digits into a group of 4 bits as follows
101011101 => 1 0101 1101
ii. the group that does not contain 4 bits is padded with 0s
101011101 => 0001 0101 1101
iii. using the hexadecimal table, convert each group to hexadecimal as follows.
0001 = 1
0101 = 5
1101 = D
iv. combine the result
15D
Therefore, ( 101011101)₂ = ( 15D)₁₆
(d) convert(37)₁₀= ( )₂
This means that (37)₁₀ be converted to base 2 (binary).
To convert from decimal to binary,
i. start by dividing the decimal number by 2 taking note of the result and the remainder.
ii. divide the result obtained in (i) by 2 and take note of the new result and the remainder.
iii. repeat steps i and ii until the result is 0.
iv. the result is a combination of the remainders starting from the last.
2 | 37
2 | 18 r 1
2 | 9 r 0
2 | 4 r 1
2 | 2 r 0
2 | 1 r 0
| 0 r 1
Now combine the remainders starting from the bottom up. i.e
100101₂
Therefore, (37)₁₀= ( 100101)₂
What most defines a community in the digital age?
Blank Are input instructions you give to a computer
Explanation:
A computer is a machine that can be programmed to accept data (input), process it into useful information (output), and store it away (in a secondary storage device) for safekeeping or later reuse. The processing of input to output is directed by the software but performed by the hardware.
What is congnitive overload
Explanation:
is a situation where the teacher gives too much information or too much many tasks to Learners simmultaneously , resulting in the learner being unable to process this information
Answer:
Cognitive loadLanguageWatchEditIn cognitive psychology, cognitive load refers to the used amount of working memory resources. There are three types of cognitive load: intrinsic cognitive load is the effort associated with a specific topic; extraneous cognitive load refers to the way information or tasks are presented to a learner; and germane cognitive load refers to the work put into creating a permanent store of knowledge (a schema).Cognitive load theory was developed in the late 1980s out of a study of problem solving by John Sweller.[1] Sweller argued that instructional design can be used to reduce cognitive load in learners. Much later, other researchers developed a way to measure perceived mental effort which is indicative of cognitive load.[2][3] Task-invoked pupillary response is a reliable and sensitive measurement of cognitive load that is directly related to working memory.[4] Information may only be stored in long term memory after first being attended to, and processed by, working memory. Working memory, however, is extremely limited in both capacity and duration. These limitations will, under some conditions, impede learning. Heavy cognitive load can have negative effects on task completion, and it is important to note that the experience of cognitive load is not the same in everyone. The elderly, students, and children experience different, and more often higher, amounts of cognitive load.The fundamental tenet of cognitive load theory is that the quality of instructional design will be raised if greater consideration is given to the role and limitations of working memory. With increased distractions, particularly from cell phone use, students are more prone to experiencing high cognitive load which can reduce academic success.[5]Explanation:
Hope it helps ^-^
#CarryOnLearning
What blockchain implementation resulted from bitcoin’s rejection of a recommendation to enhance its scripting language support? Ethereum Hyperledger Fabric Multichain IOTA
Question # 18
Dropdown
A(n)
is the tool that will help you the most when developing the content you will use in your presentation.
Your answer is outline.
An outline is the tool that will help you the most when developing the content you will use in your presentation.
What is presentation?A presentation is a method of communicating information from a speaker to an audience.
Presentations are usually demonstrations, introductions, lectures, or speeches intended to inform, persuade, inspire, motivate, build goodwill, or introduce a new idea/product.
An outline is a list of the main topics and subtopics that you intend to cover in your presentation in a hierarchical order.
It can assist you in ensuring that your ideas flow logically and that no important points are overlooked.
A storyboard, on the other hand, is a visual representation of your presentation that shows the order of your slides, the images or videos you intend to use, and the text that will go with them.
Thus, the answer is outline.
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binary calculation of 1110÷101
If an audio signal is to be coded, either for compression or for digital transmission, it must undergo some form of quantization. Most often, a general technique known as vector quantization is employed for this task, but this technique must be tailored to the specific application so it will not be addressed here. In this assignment, we will observe the effect of uniformly quantizing the samples of two audio signals.
a) Record your voice for 4 seconds and play it again using predefined MATLAB audio functions.
b) Use your Uquant function to quantize each of these signals to 7, 4, 2 and 1 bits/sample.
c) Listen to the original and quantized signals and answer the following questions using the comments in the same MATLAB file:
1- For each signal, describe the change in quality as the number of b/sample is reduced?
2- For each signal, is there a point at which the signal quality deteriorates drastically?
3- At what point (if any) does it become incomprehensible?
4- Which signal's quality deteriorates faster as the number of levels decreases?
5. Do you think 4 b/sample is acceptable for telephone systems? ... 2 b/sample?
d) Use subplot to plot in the same figure, the four quantized speech signals over the index range 7201:7400.
Answer:
bakakkallalalnabzjs d bannn my account pls
What is a word processing program? Give examples of word processing programs.
Answer:
A word processor, or word processing program, does exactly what the name implies. It processes words. It also processes paragraphs, pages, and entire papers. Some examples of word processing programs include Microsoft Word, WordPerfect (Windows only), AppleWorks (Mac only), and OpenOffice.org.
How can a DevOps team take advantage of Artificial Intelligence (AI)?
Answer:
AI/ML can help DevOps teams focus on creativity and innovation by eliminating inefficiencies across the operational life cycle, enabling teams to manage the amount, speed and variability of data. This, in turn, can result in automated enhancement and an increase in DevOps team's efficiency.
Explanation:
Suppose a class Car and its subclass Honda both have a method called speed as part of the class definition. rentalH refers to an object of the type Honda and the following statements are found in the code: rentalh.cost(); super.speed(); what will the first statement do?
A. Nothing will be called since the code will not compile as a result of multiple definitions of speed.
B. The cost method in Car will be called.
C. The cost method in Honda will be called.
D. Overloading will be used to determine which cost method to use.
Answer:
C. The cost method in Honda will be called.
Explanation:
The first statement will cause the cost method in Honda to be called. This is because rentalh is a object of the subclass Honda. Therefore, any method that is called using this object variable will target the elements within the Honda subclass. In this case, the cost() method is being called using the rentalh variable which will look for the cost() method within the scope of the Honda subclass. In order to target the parent class Car it would need to be called using the super variable as in statement 2.
Which avenue may utilize video streaming, audio narration, print designs and animation?
The (blank) may utilize video streaming, audio narration, print designs and animation.
Answer:
Explanation:
Multimedia medium may utilize video streaming, audio narration, print designs and animation as they are all part of it.
Answer:
Explanation:
ans is multimedia as it contains all of 'em
What tells the hardware what to do and how to do it?
Central Processing Unit (CPU)
Software
Hardware
Hard Drive (HDD)
Answer:
Software
Explanation:
Software directs a set of instructions to computer hardware and tell them what to do and how to do it.
What security weaknesses/vulnerabilities exist in Wireless local area network device hardware and software?
Answer:
Explanation:
There are many weaknesses/vulnerabilities, some of which are the following...
Default Network Hardware, many individuals will go out and buy a new router and install it in their home. These devices come with a preset configuration including a preset security password which is many times a default password used for every router of the same model. This can be easily obtained by anyone who can then access the network.
Access Point hacking, an experienced individual can use a packet sniffer to detect the SSID that is frequently sent from the router in order to create an access point to be able to access the network.
WEP encryption is another vulnerability. These are very low security passwords that can be cracked using different software in a short period of time.
These are some of many vulnerabilities that wireless local networks have, but there are also many precautions and security measures that can be taken to prevent them.
What is edge computing?
Answer:
I basically means something like the cloud, where your data is uploaded to servers and is then processed and transferred back to you when you need it.
Explanation:
Hope this helps :)
A de-centrally-powered, fully accessible IT architecture that always enables mobile computer technology as well as internet technologies, is determined as Edge computing.
Processing is done through edge computing, instead of sent off to the server farm, either by the equipment rather than via a localized server computer system.
Examples of edge computing include:
Smart grid excellent analysis.Oilfield rigs security monitoring.Video streaming.Drone-enabled agricultural management.
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