Answer:
The answer is "Option e".
Explanation:
In this question we calculating the volume of a cylinder, that's formula is:
[tex]\boxed{\text{Volume}= \pi \times r^2 \times h}[/tex]
In the above, we use π that's value is 3.14 or [tex]\frac{22}{7}[/tex] and "r and h" is input by the user. In the given choices all were correct it calculates the volume, that can be defined as follows:
In choice 1, The double variable "baseArea" is declared, which first calculates [tex]\pi \cdot r^2[/tex] value then multiply the h value and store it into the "volume" variable.In choice 2, The double variable "volume" is declared, which first calculates [tex]\pi \cdot r^2[/tex] value then multiply the h value and store it into the "volume" variable. In choice 2, The double variable "volume" is declared, which directly calculates the volume value by the above-given formula.how do you think someone has programmed computer calculator?
Answer:
Originally, calculator programming had to be done in the calculator's own command The most basic calculations are addition, subtraction, multiplication, and division. The more transistors an integrated circuit has, the more advanced mathematical functions it can perform.
Robert complains that the cursor on his laptop screen often jumps around unexpectedly when he’s typing. What can he do to solve the problem?
Answer:
Disable the touchpad
Explanation:
Assume the existence of a Window class with a method getClientAreaHeight that returns an integer representing the height of the portion of the window that an application program can use for its display. Assume also, a subclass BorderedWindow with an integer instance variable borderSize, that represents the size of the border around the window.
Required:
Override the getClientAreaHeight in BorderWindowto return the client area height as returned by the superclass minus the border size (taking into account top and bottom borders).
Answer:
Following are the code to this question:
public int getClientAreaHeight() //defining a method getClientAreaHeight
{
return super.getClientAreaHeight() - 2 * borderSize;//using the return keyword with the superkey return value
}
Explanation:
In the above-given java program code, an integer method "getClientAreaHeight" is defined that returns only the integer value.
Inside the method, the return keyword is used with the super key, which calls the "getClientAreaHeight" method, that subtracts with the 2 times of the "borderSize" variable value.
Which among the following is a fraudulent or deceptive act designed to trick individuals into spending time or money for little or no return?
A. Internet scams
B. Data manipulation
C. Theft
D. Malicious programs
Answer:
A. Internet scams.
Explanation:
Internet scams is a fraudulent or deceptive act designed to trick individuals into spending time or money for little or no return through the use of a cloud service or the internet. Some examples of an internet scam are phishing scams, email spams, credit card scam, etc. It is simply centred around the provision of false information or misrepresentation of another party for the sole purpose of theft.
Hence, an internet scam is an illegal means of obtaining things from people and such is a cyber crime that is punishable by law.
A wireless network does not benefit like a wired network does, when it comes to collision reduction. Which device reduces collisions on a wired network
Answer:
Switch
Explanation:
The network switch is an networking hardware also known as a network bridging device used to connect devices on the network together and receives and forward data from source to destination through packet switching.
In order to eliminate or reduce collision within the network, present day wired networks make use of network switches that connects each device to its own port on the switch, making the switch the domain of collision for half duplex links or whereby the link is a full duplex links the collision possibility is completely eliminated.
A computer retail store has 15 personal computers in stock. A buyer wants to purchase 3 of them. Unknown to either the retail store or the buyer, 3 of the computers in stock have defective hard drives. Assume that the computers are selected at random.
(a) In how many different ways can the 4 computers be chosen?
(b) What is the probability that exactly one of the computers will be defective?
(c) What is the probability that at least one of the computers selected is defective?
Answer:
a. 1365 ways
b. Probability = 0.4096
c. Probability = 0.5904
Explanation:
Given
PCs = 15
Purchase = 3
Solving (a): Ways to select 4 computers out of 15, we make use of Combination formula as follows;
[tex]^nC_r = \frac{n!}{(n-r)!r!}[/tex]
Where [tex]n = 15\ and\ r = 4[/tex]
[tex]^{15}C_4 = \frac{15!}{(15-4)!4!}[/tex]
[tex]^{15}C_4 = \frac{15!}{11!4!}[/tex]
[tex]^{15}C_4 = \frac{15 * 14 * 13 * 12 * 11!}{11! * 4 * 3 * 2 * 1}[/tex]
[tex]^{15}C_4 = \frac{15 * 14 * 13 * 12}{4 * 3 * 2 * 1}[/tex]
[tex]^{15}C_4 = \frac{32760}{24}[/tex]
[tex]^{15}C_4 = 1365[/tex]
Hence, there are 1365 ways
Solving (b): The probability that exactly 1 will be defective (from the selected 4)
First, we calculate the probability of a PC being defective (p) and probability of a PC not being defective (q)
From the given parameters; 3 out of 15 is detective;
So;
[tex]p = 3/15[/tex]
[tex]p = 0.2[/tex]
[tex]q = 1 - p[/tex]
[tex]q = 1 - 0.2[/tex]
[tex]q = 0.8[/tex]
Solving further using binomial;
[tex](p + q)^n = p^n + ^nC_1p^{n-1}q + ^nC_2p^{n-2}q^2 + .....+q^n[/tex]
Where n = 4
For the probability that exactly 1 out of 4 will be defective, we make use of
[tex]Probability = ^nC_3pq^3[/tex]
Substitute 4 for n, 0.2 for p and 0.8 for q
[tex]Probability = ^4C_3 * 0.2 * 0.8^3[/tex]
[tex]Probability = \frac{4!}{3!1!} * 0.2 * 0.8^3[/tex]
[tex]Probability = 4 * 0.2 * 0.8^3[/tex]
[tex]Probability = 0.4096[/tex]
Solving (c): Probability that at least one is defective;
In probability, opposite probability sums to 1;
Hence;
Probability that at least one is defective + Probability that at none is defective = 1
Probability that none is defective is calculated as thus;
[tex]Probability = q^n[/tex]
Substitute 4 for n and 0.8 for q
[tex]Probability = 0.8^4[/tex]
[tex]Probability = 0.4096[/tex]
Substitute 0.4096 for Probability that at none is defective
Probability that at least one is defective + 0.4096= 1
Collect Like Terms
Probability = 1 - 0.4096
Probability = 0.5904
What does your digital footprint say about you? Does your digital footprint
align with your purpose?
A person's digital reputation, which is widely regarded as being just as important as their offline reputation, can be determined by their digital footprint. Before making recruiting decisions, employers might look into the digital traces of potential hires, notably on social media.
what is a digital footprint?A digital footprint is the data that users leave behind after using the internet. There are two types of digital footprints: passive and active. A passive footprint is made when a user's data is taken without their knowledge.
This contributes to your deliberate environmental effect. Your conscious digital footprint contains all of your internet assets. It consists of the information you intentionally share about other people and yourself, whether it be in text, images, videos, connections, or other data formats.
Your digital footprint is a representation of your online identity and uniqueness—what makes you unique. Your internet reputation or impression is formed based on what you do.
Thus, A person's digital reputation.
For more information about digital footprint, click here:
https://brainly.com/question/5679893
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A laptop gets recycled by an e-waste recycling company once it can't be used anymore. Which stage of the hardware lifecycle does this scenario belong to
Answer:
Retirement.
Explanation:
When a laptop gets recycled by an e-waste recycling company once it can't be used anymore. This belongs to the retirement stage of the hardware lifecycle.
Hardware lifecycle can be defined as the management of the total or overall useful life of an equipment or device, so as to maximize or enhance the benefits to be derived from its use.
The retirement stage of a hardware represents the stage where the hardware has reached the end of its life-cycle and as such can not be used to perform the task for which it was designed. It is at the retirement stage, that hardwares are written off as scraps and are to be replaced by another because they can't be used anymore, as well as disposal for recycling purposes.
If you were doing a regular expression inside a Linux command line, which special character on the keyboard would give you two possible matches using the example below: car ____ truck
Answer: car | truck
Explanation: The pipe (|) symbol used can be used in regular expression to simply imply OR. This means when used in between expression, can be used to search for all matches of the strings in which it stands in between. In the scenario above, If the pipe symbol is located in between the two strings, such as [ cars | trucks], the expression returns possible occurrence of the strings cars and trucks. It may also be used to locate and return the occurrences of more than 2 strings, such as; string1 | string2 | string3
Help please!! I want to make an account on Brainly for my math work but it keeps giving me the same error message: "Sorry, we were not able to complete you registration at this time." I have tried multiple usernames, emails, ages, browsers, and N O T H I N G works. Please help :,(
Answer:
You can contact the brainly support team on this one and be rest assured help is on it way brainly.com/contact/index
Explanation:
Hey there?,
I understand how bad things can get when you cant make headway and the help needed is very urgent.
Now on this issues kindly contact via brainly.com/contact/index and you will get help on whatever problems you are faced with.
Furthermore, whenever you are challenged with any online technical issues, kindly lookup for the contact detail of their support team and mail them directly and be sure to get direct response soonest.
Should you need further assistance you can ask and I will guide you.
what is an email account
Answer:
an email account acts as a virtual address for email messages
my I phone is in recovery mode and when I connect to my PC the I device is not connected to iTunes although i have the latest version of iTunes. and the device is also unspecified in the devices. How to fix this problem?
Answer:
Your best bet is to put ur phone in recovery mode again and use ur computer to reset it.
If all else fails contact your phone company.
Explanation:
put your phone on recovery mode and connect to your computer or you go to where they can fix the phone
technician is dispatched to troubleshoot a user's computer. After performing diagnostics, the technician determines that drive thrashing is occurring. What are the factors that can affect this?
Answer:
Factors that can affect drive thrashing are;
The computer memory modules
Hard drives
Running processes
Paging file
Explanation:
Drive thrashing also known as disk thrashing occurs due to over stressing the hard drives by moving data from the from virtual memory,(paging file) to system memory,(RAM) and back again such that the memory becomes exhausted resulting in slow performance or system halting.
Factors that can affect drive thrashing are the computer memory modules, hard drives, running processes, and paging file
When thrashing occurs, the computer performance is slowed down or halts as the hard drives resources has reached close to capacity.
Choose the wrong statement. Proper pagination is required for the overall good performance of a domain in search results Pagination is extremely important in e-commerce and editorial websites It is important to have all sub-pages of a category being indexed rel=next and rel=prev attributes explain to Google which page in the chain comes next or appeared before it
Answer:
The wrong statement in this question is "It's important to have all sub-pages of a category being indexed".
Explanation:
In the given-question, the above choice is incorrect because all subpages in such a segment are not important to also be indexed, and the other correct choice can be defined as follows:
For both the total good performance of even an area in search engine results, acceptable pagination is required. rel = next and prev, values are an attribute, that describes its page throughout the chain next to it and originally shown by Google. Throughout e-commerce as well as publishing internet sites, scrollbars are extremely important.Vivian wants to increase the storage capacity of her computer. Which components should she upgrade?
Answer:
Hard drive
Explanation:
The hard drive is where the operating system, programs and data reside on (unless the data is saved and backed up elsewhere). An older hard drive that uses platters for reading and writing data to it will be slower than a later model solid state device. Newer hard drives have very fast access speeds compared to older units.
Answer:
I'm pretty sure it's Hard Drive and RAM
Explanation:
Once you have a listing of every unique combination of salesperson, product and location, what Excel function would you use to compute the total sales for each combination of salesperson, product and location
Answer:
SUMIFS
Explanation:
As we know that the excel is used to present the data in a very attractive way by applying the formulas, pie charts, functions as a pivot table, goal seeking, macros, etc
In order to determine the total sales for each and every sales person, production and location combination we use the SUMIFS function so that the total of each column could come in an easiest and better way
Productivity software has been used for a number of years. Recent advancements in productivity software technology have made _____ among multiple users all over the world a possibility.
Answer:
The best and most correct answer among the choices provided by the question is the second choice.
Explanation:
Recent advancements in productivity software technology have made e-mailing among multiple users all over the world. I hope my answer has come to your help. God bless and have a nice day ahead!
Select the correct navigational path to freeze the top row of your worksheet. Select the panes you wish to freeze. Click the tab on the ribbon to enter the gallery. Then, select the drop-down menu to freeze the panes.
Yeah, Your steps ar correct. Let's analyse those steps more easily by the following steps:
[tex] \Large{ \boxed{ \bf{ \color{aqua}{Freeze \: panes:}}}}[/tex]
Freeze panes is a feature in spreadsheet applications, such as Microsoft Excel, LibreOffice Calc, and Google Sheets. It "freezes" a row or column, so that it is always displayed, even as you navigate the spreadsheet.
❍ Freezing panes is especially useful if your spreadsheet has a header row, that you want to always be visible.
Select the row below the row(s) you want to freeze. In our example, we want to freeze rows 1 and 2, so we'll select row.Click the View tab on the Ribbon.Select the Freeze Panes command, then choose Freeze Panes from the drop-down menu. ...The rows will be frozen in place, as indicated by the gray line.━━━━━━━━━━━━━━━━━━━━
Answer:
Select the correct navigational path to freeze the top row of your worksheet.
Select the panes you wish to freeze.
Click the ✔ View tab on the ribbon to enter the ✔ Window gallery.
Then, select the drop-down menu ✔ Freeze Panes
to freeze the panes.
Explanation:
List some good names for devices on your home network or on the network in your school's lab. Demonstrate the use of best practices when creating a naming scheme for devices on a computer network.
Answer:
Following are the answer to this question:
Explanation:
The following is the list of name devices, which is used home network or the school lab.
hrtr01(home router 1). schadmrtr02(school building router 2). clpc01, and clpc02 (computer laboratory pc 1 and 2) .Uses:
Its use as descriptive names as necessary without gives potential hacks much more relevant data. It provides only areas that are essential for both device identification. It allows the name for irrelevant or redundant information doesn't over-complicated.Sometimes an expansion board may have an extra PCIe power connector. This connector comes in what two different pin configurations?
Answer:
6-pin and 8-pin
Explanation:
The PCle power connector also known as PEG cables, makes extra power available to PCI Express cards. Mid power to high power graphic cards get their power to function from the PSU through the 6-pin and 8-pin PCI-Express PEG cables.
The 6-pin PEG cable graphics card supply capacity is 75 Watt such that a graphics card that requires 75 Watt will have a 6-pin PEG cable to supply its power needs
The 8-pin PEG cable graphics card supply capacity is 150 Watt such that a graphics card that requires 150 Watt will have an 8-pin PEG cable to supply its power needs.
Distinguish between the savings and investment options.
Savings
Investments
mutual hd
money market
gold
certificate of deposit
account
Answer:
Savings, Investments
[tex]{}[/tex]Certificate of deposit Mutual fund
[tex]{}[/tex]Account Money Market
[tex]{}[/tex] Gold
Explanation:
Savings is the term used to describe the proportion of ones income not spent or kept for spending at a much later date;
Saving methods includes saving money in deposit accounts, pension savings, and cash savings as well as reducing expenditures
Savings differs from investment in the sense that investments involves more risks than savings
Mutual fund
Mutual fund is a financial resource type involving the bringing together of funds gathered from several investors for investment
Money market
The money market involves buying and selling debt investments that are short terms
Gold
Gold investment is a way of diversifying risk through futures and derivatives and futures contracts
Certificate Deposit
Certificate deposit is a fixed term deposit form of savings that provides an interest on the deposit
Account
Savings and current account are meant for saving funds
A Transmission Control Protocol (TCP) connection is established and two devices ensure that they're speaking the same protocol. What has occured?
A. Three-way handshake
B. Two-way handshake
C. Handshake
D. Four-way handshake
Answer:
The correct option is;
A. Three-way handshake
Explanation:
For establishment of connection within Transmission Control Protocol, (T. C. P.), involves a three-way way handshake. Prior to attempting a server connection, the server to which connection is sought passively opens a port by listening at the port. Upon establishment of passive open, active open by the client can then be initiated by the client. A connection establishment requires a three-way handshake as follows;
1. The client sends a SYN to the server
2. The server responds by sending a SYN-ACK
3. The client further responds sending ACK back to the server.
A _______ is conducted to determine the adequacy of system controls, ensure compliance with established security policy and procedures, detect breaches in security services, and recommend any changes that are indicated for countermeasures.
Answer:
security audit
Explanation:
What is a command-line interactive scripting environment that provides the commands for almost any management task in a Windows Server 2016 environment?
Answer:
kqwbxskwsxe
Explanation:
menb dhj
After performing several upgrades on a computer, the user reports that he is having trouble with an overheating problem. You want to make recommendations to help prevent the computer from overheating during use. What should you recommend?
Complete Question:
After performing several upgrades on a computer, the user reports that he is having trouble with an overheating problem. You want to make recommendations to help prevent the computer from overheating during use. What should you recommend?
Group of answer choices
A. Apply a higher voltage to the cooling fans.
B. Use an installed video card rather than a built-in video chip on the system board.
C. Use a blank-screen screen saver.
D. Keep the computer cover closed and secured.
Answer:
D. Keep the computer cover closed and secured.
Explanation:
Assuming that after performing several upgrades on a computer, the user reports that he is having trouble with an overheating problem. The recommendation to help prevent the computer from overheating during use is to keep the computer cover (tower case) closed and secured.
All computer covers (tower cases) have an opened designed by the manufacturer which allows uniform dissipation of heat through the use of an airflow cooling system. Hence, it is very important that the computer cover is closed and secured in order to maintain an effective and efficient cooling system.
Additionally, you should ensure the cooling fan or case fan is working properly and a heat sink is installed.
give brainliest if you tell me the can tell me the most random thing
Mood
Explanation:
Because it gets changed by the time you are happy or sad. Same that while you are reading if you like your. mood gets good but if you dont find this ans satisfied your mood gets changed.
Your friend called and told you that he saw information about the classified XYZ program on the Internet. As a cleared employee who does not work on the XYZ program, is it okay for you to view that information on the Internet since it's already in the public domain?
Answer:
Yes
Explanation:
Based on this scenario it can be said that Yes, it is ok for you to view this information. The main reason for this being that the information is already in the public domain. Even though you are cleared you still do not have the authority to view private information from the companies projects because you do no longer work for the company but since it has been leaked and already viewed by the entire world then it is ok for you to view as well. Anything made public on the internet can be viewed by anyone around the world.
A feature on a new computer with Windows preinstalled. When you take it out of the box and turn it on, you will be greeted with this last phase of Windows installation where you personalize the GUI and configure. How you will sign in?
Answer:
Explanation:
In the newer versions of windows, there are a variety of sign-in methods, these include facial recognition, fingerprint scanner, username & password, or Microsoft email sign in. The choice is yours at the end of the Out-of-box experience which is the entire setup experience that the consumer has when first preparing the new windows installation on the computer that they have. Some of the options may require additional hardware on your PC such as a fingerprint scanner or a webcam for facial recognition.
Which access control principle limits a user's access to the specific information required to perform the currently assigned task
Answer:
The answer is "Need-To-Know Access Control Principle"
Explanation:
There are three types of access control methods such as Role-Based Access Control, Discretionary Access Control and Mandatory Access Control.
The access control principle that limits/blocks the user from gaining access to a folder/information/procedure within the system is called "Need-To-Know Access Control Principle".
I hope this answer helps.
As the head of IT for MTS, you're explaining some security concerns to a junior administrator who has just been hired. You're trying to emphasize the need to know what is important and what isn't. Which of the following is not a consideration in key storage?
A. Environmental controls
B. Physical security
C. Hardened servers
D. Administrative controls