Answer:
there are many ways that technology has impacted Ghana.
1. The republic of Ghana have been making some plans that can help with economic growth in the last decade.
2. Ghana has a higher productivity rate than the neighboring nations.
3. The republic of Ghana made a shift onto incentive-driven economic policies, so that way it could help improve leadership.
Assume that the speed of new computers costing a certain amount of money grows exponentially over time, with the speed doubling every 18 months. Suppose you need to run a very time consuming program and are allowed to buy a new computer costing a fixed amount on which to run the program. If you start now, the program will take 7 years to finish. How long should you delay buying the computer and starting the program so that it will finish in the shortest amount of time from now
Therefore, in order to run the program in the shortest time, you should delay for 3 years
Given that the speed of new computers costing a certain amount of money grows exponentially over time, with the speed doubling every 18 months.
Exponential equation as a function of time can be expressed as
P(t) = [tex]P_{0}[/tex][tex]R^{t/T}[/tex]
Quantity P will be increasing exponentially when R > 1. And it will decrease exponentially when R < 1.
Suppose you need to run a very time consuming program and are allowed to buy a new computer costing a fixed amount on which to run the program. If you start now, the program will take 7 years to finish.
Let the time required to run and complete a program for time t years be P(t).
If the speed doubling every 18 months, which is 3/2 years. This will eventually cause the running time to decrease by half (0.5)
P(t) = 7[tex](1/2)^{3t/2}[/tex] = 7[tex](2)^{-3t/2}[/tex]
The total time T will be sum of the delay time t and the time of running the program. That is
T(t) = t + P(t)
T(t) = t + 7[tex](2)^{-3t/2}[/tex] .......... (2)
We can calculate the minimum time t by differentiating the above equation and make it equal to zero.
dT/dt = 1 + 14/3[tex](2)^{-3t/2}[/tex](ln0.5) = 0
14/3[tex](2)^{-3t/2}[/tex](ln0.5) = -1
[tex](2)^{-3t/2}[/tex](ln0.5) = -3/14
[tex](2)^{-3t/2}[/tex] = -3/14ln0.5
Log (natural logarithm) both sides
-3t/2ln2 = ln(3/14ln2)
make t the subject of formula
t = - 3ln(3/14ln2) ÷ 2ln2
t = 2.5 approximately
To know how long you should delay buying the computer and starting the program so that it will finish in the shortest amount of time from now, substitute t into equation 2
T(2.5) = 2.5 + (7)[tex]2^{-3(2.5)/2}[/tex]
T(2.5) = 2.5 + 0.5202
T(2.5) = 3.02 years
T (2.5) = 3 years approximately
Therefore, in order to run the program in the shortest time, you should delay for 3 years
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Write the function void sort2(double* p, double* p) that receives two pointers and sorts the values to which they point. To test the function, write the main function that prompts the user to enter two values and then print out the sorted values. If you call sort2(&x, &y) then x <= y after the call.
The function illustrates the use of pointers.
Pointers are used to store address in programming languages such as C and C++.
The program in C language where comments are used to explain each line is as follows:
#include <stdio.h>
//This defines the function
void sort2(double* p1, double* p2){
//This declares a temporary variable t
double t;
//If p2 is less than p1,
if (*p2 < *p1) {
//The next 3 lines swap their values
t = *p2;
*p2 = *p1;
*p1 = t;
}
//This prints p1
printf("%f ", *(p1));
//This prints p2
printf("%f ", *(p2));
}
//The main method to test the function begins here
int main(){
double x = 23.0;
double y = 14.1;
sort2(&x, &y);
return 0;
}
//The program ends here
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Project managers have the overall responsibility for planning, executing, and completing a project. (3 points) True False
identify another natural cyclic event, other than phases and eclipses, that is caused by the moon's gravitational pull on earth
Answer:
TEKS Navigation
Earth Rotation.
Moon Phases.
Tides.
Cyclical events happen in a particular order, one following the other, and are often repeated: Changes in the economy have followed a cyclical pattern. an example would be pamdemic and vircus it is belived that a new pamdemic starts every 100 years.
Explanation:
The rise and fall of ocean tides is the natural cyclic event caused by the moon's gravitational pull on earth
The gravitational pull of the moon's causes the two bulges of water on the Earth's oceans:
where ocean waters face the moon and the pull is strongestwhere ocean waters face away from the moon and the pull is weakestIn conclusion, the rise and fall of ocean tides is the natural cyclic event caused by the moon's gravitational pull on earth
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An engine that creates ignites fuel with highly compressed air.
Explanation:
An engine that creates ignites fuel with highly compressed air. air engine
3. Elaborate why and how you use “Output” command in Python Programming Language, write the syntax of output command?
Answer:
Explanation:
you use print() to output something
so it would be like this:
print("What is up, gamer?")
so the syntax is print() with whatever is in the parentheses being what you want to output
what is the difference between software hardware ???
Answer:
Some differences are written below:
Explanation:
Hardware refers to the physical components of the computer. You can see and touch it (keyboard, screen, mouse, monitor..etc..)
Computer Software is a programming code executed on a computer processor.We can see and also use the software but can’t touch them. (Ms Word, Excel, Power Point, Photoshop..etc..)
Hardware can't perform tasks without software. And Software can't be executed without software.
Hardware has four main categories: input device, output devices, storage, and internal components.
Software is divided into System software, Programming software and Application software.
Hardware is not affected by computer viruses. Software is affected by computer viruses.
Create a program that asks the user for the number of male and female students registered in a class/section. The program should display the total number of students and the percentage of male and female in the class.
Sample output
Enter the number of male: 36
Enter the number of female: 17
Number of students = 53
Male = 67.92%
Female = 32.08%
. Question 2 Fill in the blank: R Markdown notebooks can be converted into HTML, PDF, and Word documents, slide presentations, and _____.
R markdown notebook describes a notebook format in R programming which supports R programmers to run codes while also writing documents or explanation alongside. Hence, the missing option is Dashboard.
R markdown may be compared to jupyter notebooks which also supports writing in markdown language. The R markdown notebooks can be created using the R studio, which allows the conversion notebooks of these notebooks into several different formats including the creation of dashboards.Hence, R markdown notebooks can be converted to HTML PDF, word document, slide presentation and dashboards.
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A notebook for R Markdown is required to document, discuss, and justify each stage of your investigation.
R markdown notebook presents a R programming notebook style that enables R programmers to run codes while simultaneously producing papers or explanations. A R Notebook, which is a document written in R Markdown, allows the software components to be run separately and in real-time. Additionally, it does away with the necessity of weaving all of your R Markdown text in order to test the results as you build your website.
Every R Notebook has the ability to be converted into any other R Markdown document type, and every R Markdown document has the ability to be used as a notebook. R Notebooks are thus a special operating option.
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Today we see the advantages as well as disadvantages of a wired network. In comparison what technology would you recommend Wired Ethernet or a Wireless network technology for home and what would you recommend for business? Explain your answer
Answer:
wired network
Explanation:
Wired networks are generally much faster than wireless networks. ... This is mainly because a separate cable is used to connect each device to the network with each cable transmitting data at the same speed. A wired network is also faster since it never is weighed down by unexpected or unnecessary traffic.
hope that helps your welcome
Which invention made it possible to have an entire computer for a single circuit board
Answer:
ok lang
Explanation:
In this paper https://arxiv.org/pdf/2008.10150.pdf, I'm having a hard time understanding how the assignment in the picture is derived, can you please work this out?
Answer:
f*(i,z) = log pxz
Explanation:
they round
What is primary difference between the header section of a document and the body
Answer:
A HTML file has headers and a "body" (payload) — just like a HTTP request. The <body> encapsulates the contents of the document, while the <head> part contains meta elements, i.e., information about the contents. This is (typically) title, encoding, author, styling etc.
Explanation:
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Without proper synchronization, which is possible, a deadlock, corrupted data, neither or both? Give reasons for your answer.
need answer pls
Without proper synchronization, corrupted data is possible due to the fact that a shared datum can be accessible by multiple processes.
Data synchronization simply means the idea of keeping multiple copies of dataset in coherence with one another in order to maintain data integrity. It's the process of having the same data in two or more locations.
Without proper synchronization, corrupted data is possible because a shared datum could be accessed by multiple processes without mutual exclusive access.
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What is ligma? please someone answers ill give the brainliest.
Answer:
Ligma is just a made-up disease, its not real. Tons of people use that word now for a inappropriate joke, don't fall for it!
Explanation:
The sugma and ligma are the rare diseases cause by the bofa family viruses.
What Sugma and Ligma are related?Sugma and Ligma are both diseases and are related to each other where LIGMA is also known as loose internal gene miaasintits and this is the second stage od BOFA which is biologically offset farkowonian asintits and this diseases interferes with the immune system and it increases the risk of having tuberculosis and if in LIGMA a person enter the BOFA stage.
It is considered as last treatable stage and due to highly weakened immune system the people are most likely to die at this stage but still there is one treatment suggested n this case called as LIGMA balls where as SUGMA is the rarest antibiotic strain resistant of LIGMA virus.
The sugma is non lethal but is contagious and can spread very fast and its great prevention is by awareness of BOFA family viruses s sugma strain can be transferred via both verbal and virtual communication and as it is a rare disease.
Therefore, The sugma and ligma are the rare diseases cause by the bofa family viruses.
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Ruzwana is a system administrator at an organization that has over 1000 employees. Each of the employees brings their own devices to work. She wants to find an efficient method that will allow her to make the various devices meet organizational standards. In addition, she would like to deploy various universal applications such as the VPN client, meeting software, and productivity software to these systems. Which of the following options should Ruzwana use to achieve the desired outcome in this scenario?
a. A provisioning package.
b. A catalog file.
c. A configuration set.
d. An answer filE.
In this scenario, the option which Ruzwana should use to ensure that the various devices meet organizational standards and for the deployment of various universal applications is: d. An answer file
An answer file can be defined as an XML-based file which contains the configuration settings and values that should be used during the installation of a software program on one or more devices in accordance with specific standards. Thus, each and every device using the same answer file would have the same configuration setting.
Additionally, an answer file allows a system administrator to automatically deploy various software programs such as meeting software and productivity software to a particular system or network.
In this context, the most appropriate option which Ruzwana should use to ensure that the various devices meet organizational standards and for the deployment of various universal applications is an answer file.
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The web design teams of a company are working on designing websites for various companies, Pick the ideas that employ proper use of
metaphor.
Danny is creating a website for senior citizens that uses large fonts to improve accessibility. Keenan is working on a website for school children
learning chemistry that is designed to look like a chemistry lab. Justin has created a website for a flower bouquet manufacturer that shows all
the available types of bouquets. Adam has designed a website for viewing movie trailers for the local cinema that display the video on a screen
made to look like a drive-in theater. Paul has created a website for pre-school children to learn English using very simple language and small
words.
Answer:
C
Explanation:
I KNOW ITS RIHGHT
Answer:
1. Keenan is working on a website for school children learning chemistry that is designed to look like a chemistry lab. 2. Adam has designed a website for viewing movie trailers for the local cinema that display the video on a screen made to look like a drive-in theater
Explanation: 5/5 on the test
Describe the two problems that appear in the construction of large programs that led to the development of encapsulation constructs.
Two problems that can lead to the development of encapsulation constructs when creating large programs are the complexity of data and the lack of security in sensitive data.
We can arrive at this answer because:
Encapsulation constructs are designed to prevent data from being invaded by unauthorized person.These constructions must be done without causing inconsistencies in the system, interfering with codes, and increasing the complexity of data. For this reason, large programs that present high complexity and difficult codes, demand the use of encapsulation constructs, so that their data does not become more complex.Encapsulation constructs are also necessary when there are flaws in data security and it is not possible to keep them away from the attack by intruders.Although there are other ways to accomplish these goals, encapsulation constructs are widely used because of their simplicity and efficiency.
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Please describe how you can use the login page to get the server run two SQL statements. Try the attack to delete a record from the database, and describe your observation.
Given an array of String objects, use streams to count how many have a length less than or equal to three. StringLengthDemo.java
The array of String objects, use to count how many have a length less than
or equal to three is as follows:
string_object = ["brainly", "mathematics", "boy", "girl", "us", "joy", "key"]
x = []
for i in string_object:
if len(i) <= 3:
x.append(i)
print(len(x))
The code is written in python
The string array is declared.
Then an empty variable array is declared.
Then we loop through the array.
If any of the string length in the array is less than or equals to 3 , we append it to the empty array.
Then finally, we print the counted number of strings
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How does tracking changes relate to sharing a workbook in Excel?
Answer:When you highlight changes as you work, Excel outlines any revisions (such as changes, insertions, and deletions) with a highlighting color. On the Review tab, click Track Changes, and then click Highlight Changes. Select the Track changes while editing. This also shares your workbook check box.
Explanation:
A workbook in excel is a file that contains one or more worksheets to assist you with data organization.
What is a workbook?A workbook in excel is a file that contains one or more worksheets to assist you with data organization. A blank workbook or a template can be used to build a new workbook.
The Advanced tab of the Share Workbook dialogue box gives further choices for changing how Excel records change. For example, you may choose the "Automatically Every" radio option and enter a value in the "Minutes" text box. If you enter 10, Excel will store changes made by users every 10 minutes.
When you highlight changes while you work, Excel highlights any modifications (such as updates, insertions, and deletions) with a highlighting colour. Track Changes and Highlight Changes may be found on the Review tab. Select the Track changes while editing.
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A machine that converts energy to useful work.
Answer:
heat engine
A heat engine is any machine which converts heat into useful work for example, a steam engine or a car engine. Real heat engines are complex and there are many ways of converting heat energy into useful work. We can abstract and generalise the workings of any heat engine into three parts:
Explanation:
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Keisha needs to connect to the Internet, but no wireless networks or Wi-Fi hotspots are available. What can she use instead to make the connection
There are several ways of connecting to the internet aside the use of WiFi Hotspot. Hence, Keisha could make use of Bluetooth or a modem.
Bluetooth tethering allows users to establish internet connection between smart devices such as a smartphone and a computer by using the Bluetooth functionality of the devices. Similarly, modems can be used to establish a connection by inserting a data Sim into the USB modem and Inputting it into the port of the computer.Learn more : https://brainly.com/question/25698028
Differentiate between patent and copyright.
Answer: Patent - securing an invention
Copyrights - securing original ideas
Both are governed by different rules and regulations and both are for different purposes.
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The system tray contains _____.
A. the battery life
B. the computer's hard drive
C. the operating system
D. Quick Launch
The notification area (also called the "system tray") is located in the Windows Taskbar, usually at the bottom right corner. It contains miniature icons for easy access to system functions such as antivirus settings, printer, modem, sound volume, battery status, and more.
Answer:
A BATTERY LIFEExplanation: The person said it and it was right I believed them, and they made me get a 100% thank you sir/madam and as you can see, I have proof so your welcome and thank you.I Wouldn't just say the letter like A or C because everyone's quiz is different, and it changes but either way whatever your welcome and again thank you.what don't you like about creating a new document using Microsoft office button
Write a program that, given a file name typed by the user, reads the content of the file and determines the highest salary, lowest salary and average salary. The file contains employee records, and each record consists of the hours worked and the hourly rate. The salary is calculated as the product of the hours worked and the hourly rate.
An example of file containing three records is as follows:
10.5 25.0
40.0 30.0
30.9 26.5
Using the pandas packge in python, the program which performs the required calculation goes thus :
file_name = input()
#user types the filename
df = pd.read_csv(file_name, names=['hours_worked', 'rate']
#file is read into a pandas dataframe
df['salary'] = df['hours_worked'] * df['rate']
#salary column is created using the product of rate and hours worked
highest_salary = df['salary'].max()
#the max method returns the maximum value of a series
print('highest_salary)
lowest_salary = df['salary'].min()
#the min method returns the minimum value of a series
print('lowest_salary)
avg_salary = df['salary'].mean()
#the mean method returns the average value of a series
print('avg_salary)
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In the EXPLORE online library, the ratio of the number of novels to that of dictionaries is 2:3 and the total number of novels is 624. If Joe buys more novels and the ratio becomes 7:3, then how many novels have been bought in total?
Answer:
Answer is 2184
Explanation:
1st of all we need to know the total number of novels in the library if I have it with a ratio of one meaning:
2---------624
1----------???
(1×624)÷2 =312
Meaning with a ratio of 1 I'll have 312
Take the 312 and multiply with 7
It will give you 2184
That's the number of Novels which were bought by joe
Write an inheritance hierarchy for classes Quadrilateral, Trapezoid, Parallelogram, Rectangle and Square. Use Quadrilateral as the superclass of the hierarchy. Create and use a Point class to represent the points in each shape. Make the hierarchy as deep (i.e., as many levels) as possible. Specify the instance variables and methods for each class. The private instance variables of Quadrilateral should be the x-y coordinate pairs for the four endpoints of the Quadrilateral. Write a program that instantiates objects of your classes and outputs each object‟s area (except Quadrilateral
Answer:
CODE:
public class QuadrilateralTest {
public static void main(String[] args) {
// NOTE: All coordinates are assumed to form the proper shapes
// A quadrilateral is a four-sided polygon
Quadrilateral quadrilateral =
new Quadrilateral(1.1, 1.2, 6.6, 2.8, 6.2, 9.9, 2.2, 7.4);
// A parallelogram is a quadrilateral with opposite sides parallel
Parallelogram parallelogram =
new Parallelogram(5.0, 5.0, 11.0, 5.0, 12.0, 20.0, 6.0, 20.0);
// A rectangle is an equiangular parallelogram
Rectangle rectangle =
new Rectangle(17.0, 14.0, 30.0, 14.0, 30.0, 28.0, 17.0, 28.0);
// A square is an equiangular and equilateral parallelogram
Square square =
new Square(4.0, 0.0, 8.0, 0.0, 8.0, 4.0, 4.0, 4.0);
System.out.printf(
"%s %s %s %s\n", quadrilateral, parallelogram,
rectangle, square);
}
}
RESULT:
Coordinates of Quadrilateral are:
2 (1.1, 1.2), (6.6, 2.8), (6.2, 9.9), (2.2, 7.4)
3
4 Coordinates of Parallelogram are:
5 (5.0, 5.0), (11.0, 5.0), (12.0, 20.0), (6.0, 20.0)
6 Width is: 6.0
7 Height is: 15.0
8 Area is: 90.0
9
10 Coordinates of Rectangle are:
11 (17.0, 14.0), (30.0, 14.0), (30.0, 28.0), (17.0, 28.0)
12 Width is: 13.0
13 Height is: 14.0
14 Area is: 182.0
15
16 Coordinates of Square are:
17 (4.0, 0.0), (8.0, 0.0), (8.0, 4.0), (4.0, 4.0)
18 Side is: 4.0
19 Area is: 16.0
Explanation:
In this exercise we have to use the knowledge of computational language in JAVA, so we have that code is:
It can be found in the attached image.
So, to make it easier, the code in JAVA can be found below:
public class QuadrilateralTest {
public static void main(String[] args) {
new Quadrilateral(1.1, 1.2, 6.6, 2.8, 6.2, 9.9, 2.2, 7.4);
new Parallelogram(5.0, 5.0, 11.0, 5.0, 12.0, 20.0, 6.0, 20.0);
new Rectangle(17.0, 14.0, 30.0, 14.0, 30.0, 28.0, 17.0, 28.0);
new Square(4.0, 0.0, 8.0, 0.0, 8.0, 4.0, 4.0, 4.0);
System.out.printf(
"%s %s %s %s\n", quadrilateral, parallelogram,rectangle, square);
}
}
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