Answer:
The C++ statement for the given algebraic expression 5x^2 + 15k + y^-2 is ( ( 5 * ( x * x ) ) + ( 15 * k ) + ( 1 / ( y * y ) ).
Explanation:
To convert the given algebraic expression 5x^2 + 15k + y^-2 into the C++ statement without using the pow function is:
In the given algebraic expression, there are three expressions combined using the + operator.
The first algebraic expression is 5x^2.
Here, x has a power of 2, and 5 is multiplied by the result of x^2. x having the power of 2 means x is multiplied itself twice. The C++ statement for this algebraic expression is (5 * ( x * x)).
The second algebraic expression is 15k.
Here, 15 is multiplied by k. The C++ statement for this algebraic expression is (15 * k).
The third algebraic expression is y^-2.
Here, x has a power of -2. it means [tex]1/y^{2}[/tex]. The C++ statement for this algebraic expression is (1/ (y * y).
The combination of all the three C++ statement is (5 * ( x * x)) + (15 * k) + (1/ (y * y).
who was dobri dobrev?
Answer:
Dobri Dimitrov Dobrev, better known as Grandpa Dobri, Elder Dobri or The Saint of Bailovo, was a Bulgarian ascetic who walked over 20 kilometres each day to sit or stand in front of the Cathedral of Alexander Nevsky in Sofia to collect money for charitable causes.Answer:
He was bulgarian ascetic who walked over 20 kilometres each day to sit or stand in front of the Cathedral of Alexander Nevsky in Sofia to collect money for charitable causes. Elder Dobry has been raising money for decades to restore churches throughout Bulgaria.Dobrev donated all the money he collected to charities, orphanages, churches, and monasteries.
A customer in a store is purchasing five items. Write a program that asks for the price of each item, and then displays the subtotal of the sale, the amount of sales tax, and the total. Assume the sales tax is 7 percent. Display all results, properly labeled, as numbers with two digits after the decimal point.
Answer:
Program approach:-
Using the header file.Using the standard namespace I/O.Define the main function.Display the enter price of 5 terms.Explanation:
Program:-
//header file
#include<iostream>
#include<iomanip>
//using namespace
using namespace std;
//main function
int main(){
const double SALES_TAX=0.07;
double subTotal=0,total=0,taxAmount = 0,x;
cout<<"Enter price of 5 items"<<endl;
for(int j=0;j<5;j++){
cin>>x;
subTotal += x;
}
taxAmount = subTotal * SALES_TAX;
total = taxAmount + subTotal;
cout<<fixed<<setprecision(2)<<endl;
cout<<"Sub total: "<<subTotal<<endl;
cout<<"Sales Tax: "<<taxAmount<<endl;
cout<<"Total: "<<total<<endl;
}
Software specific to user’s needs is referred to as
Answer:
Application software
Explanation:
Application software may be explained as computer programs which are designed to performs specific functions or task or a certain business, educational or social problem. Application softwares are designed to serve end users according to purpose or need. Hence, they are different from system softwares which are required to aid operation of the computer. Application softwares may include ; spreadsheet programs like Microsoft Excel, Chrome browser, Safari, Slack, Gaming softwares and so on.
A channel or path through which the data or information is transferred form one place to another in a computer network is called
Answer: Data Transmission mode defines the direction of the flow of information between two communication devices.
Explanation:
It is also called Data Communication or Directional Mode. It specifies the direction of the flow of information from one place to another in a computer network.
A channel or path through which the data or information is transferred form one place to another in a computer network is called communication channel.
What is communication channel?Information is transported from one network device to another over a communication channel.
Data is transported across wired channels using cables and wires. Without using cables or wires, wireless channels transmit data from one device to another.
Data communication is the process of transferring data from one device to another via a transmission medium of some kind.
The system bus is a network of wires and connectors that carries data between a computer's primary memory and its processors.
For data and control signals travelling between the main parts of the computer system, the bus offers a communication path.
Thus, communication channel is the path for data transfer.
For more details regarding communication channel, visit:
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a diagram of a flow chart to find the average of 10 numbers
Answer:
Kindly check attached picture
Explanation:
Flowchart gives a graphical representation of a steps taken towers the execution of a program.
In the flowchart attached, A variable was initialized and set to 0 ; then a for loop was used to iterate integers 1 up to 10, for each number. It is added to the initialized variable sum until all the 10 integer numbers are added. The the average is obtained by dividing by 10.
For what purpose do the hackers create the zombies army?
A. DDoS Attacks
B. DoS Attacks
C. Warm Attacks
Answer:
A. DDoS Attacks
Explanation:
A zombie, in computer terminology, is a hacker, computer worm, trojan horse, or virus compromised internet connected computer, which can be remotely directed to perform malicious tasks
E-mail spams and denial-of-service, DoS attacks are spread and launched by botnets of zombie computers
Botnets which are also known as "zombie army", are used by hackers mainly for spam and distributed-denial-of-service, DDoS, attacks
While a DoS attack involves one machine, while a DDoS attack consist of multiple computing devices and machines
A botherder is the originator of a botnet and common botnets include Mr Black. Pushdo, and cyclone
A top investment bank is in the process of building a new Forex trading platform. To ensure high availability and scalability, you designed the trading platform to use an Elastic Load Balancer in front of an Auto Scaling group of On-Demand EC2 instances across multiple Availability Zones. For its database tier, you chose to use a single Amazon Aurora instance to take advantage of its distributed, fault-tolerant, and self-healing storage system. In the event of system failure on the primary database instance, what happens to Amazon Aurora during the failove
Answer:
Following are the solution to the given question:
Explanation:
Initially, Aurora will try and establish a new DB instance in the same AZ as the previous example. When Aurora can do it, he will try to create a new DB instance in another AZ.
Aurora will try and construct a new DB instance in the same disponibility zone as the original example if there is not an Amazon Aurora Replica (i.e. single instance) that does not execute Aurora Serverless. The replacement of the original example was better managed and may not work if there is, for example, an issue that impacts broadly the entire Access Service.
complete the sentence: hexadecimal numbers use base ____
Hexadecimal numbers use base-16
State two pieces of information that need to be labeled on the idea development sketch. 1 .________________________________________________. 2 .___________________________________________.
Answer:
Design drawings should show details on layout, measurements, plan, cross-sectional and vertical profiles. This information is prepared as scale drawings of the works to be constructed. they are legible they include all information from previous revisions and updates.
Explanation:
function of Napier bone any five
Answer:
calculation of product
Napier's bones , also called Napier's
rods, are numbered rods which can be
used to perform multiplication of any
number by a number 2-9.
How to turn on my switch control bc it wont let me turn on when i keep on pressing it
Answer:
try triple clicking on the home button and see if it works, if it doesnt try restarting your ipad and try again.
Explanation:
Use the drop-down menus to complete statements about options for inserting video files.
V is a point of interest in a video clip that can trigger animations or provide a location that a user
can jump to quickly.
The Embed Code command will link an online video to a presentation and requires
to work.
Recording mouse actions and audio is done by using the
command.
Answer:
1 book mark
2 internet connection
3 inset screen
Explanation:
because
what is spyware and what is it function?
Explanation:
Spyware is a type of malicious software -- or malware -- that is installed on a computing device without the end user's knowledge. It invades the device, steals sensitive information and internet usage data, and relays it to advertisers, data firms or external users.
A chart is used to represent ______ data in pictorial form
Computer question
From the chapter ms excel pls answer!!
Answer:Pictorial form is also called a pictogram
What is the last phase of the website development process?
O A. development
OB.
maintenance
O c. testing
OD. design
Answer:
OB.
maintenance
Explanation:
The last phase is Maintenance, in this stage, the maintenance of the website is done for a limited time period only. Maintenance means updating the contents & design of the website.
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What is the last phase of the website development process?
B. Maintenance ✔
Explanation:
Maintenance is the last phase of the website development process.
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CorpServ is a small company with 14 client systems and a network printer. Because there are only a limited number of networked systems, you decide to use APIPA addressing for the network. With APIPA configured, all systems are able to communicate with each other, but you are having trouble configuring Internet access. What is the likely cause of the problem
Answer: Private addresses cannot directly communicate to hosts outside the local subnet.
Explanation:
Automatic Private IP Addressing (APIPA) allows assigning an IP address by a computer system automatically when there's no availability of a Dynamic Host Configuration Protocol (DHCP) server to perform the function.
Since after the configuration of the APIPA, all systems are able to communicate with each other, but there's trouble configuring Internet access, then private addresses cannot directly communicate to hosts outside the local subnet.
Which method for adding paragraph spaces is the most efficient?
adjusting the Space After setting
adding paragraph breaks where you want spaces
adjusting the Paste Options to match the destination formatting
adding tab stops at the start of each paragraph
Answer:
adjusting the Space After setting
Pre-writing is important for all of the following reasons except?
A) it gets ideas down on paper
B) it forces the writer to be specific early in the process
C) it is the creative stage
D) it is where the ideas are generated
Answer:
B) It forces the writer to be specific early in the process.
Explanation:
Pre-writing is simply just getting down ideas. If you're writing down specific details and information, that's when you're writing the rough draft or the finalized paper.
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Answer:
The answer is "Line 1,4,and 9".
Explanation:
Following are the complete code to the given question:
print ("What is your favourite football team? ")#print message
team = input()#define variable that use input method to input value
#this is the IF statement, If they enter Manchester City
if team == "Manchester City":#use if to check string value
#respond like this
print ("Manchester City is a great team! ")#print message
#alternatively, respond like this
else: #defining else block
print("I don't mind "+ team +", but Manchester City is better !")#print message
#don't forget concatenation!
output:
Please find the code with the output in the attached file.
Please find attached file that will explains errors.
help,any question answer
Answer:
true
false
true
true
Explanation:
I took the paper
the series of instructions that tells the hardware how to perform
Answer:
A Program
Explanation:
Hardwares may be referred to as physical components of a computer system or machine. Hardware components may include processing unit of a machine or equipment. These Hardwares work with according to certain embedded instruction in other to function properly and according to the designers specification. These series of instruction written in other to control the function of the hardware is called the PROGRAM. Hence, the series of instruction which controls the function of the hardware is Called the PROGRAM.
What are water proof cameras?( write in detail)
Answer:
Underwater photography is the process of taking photographs while under water. It is usually done while scuba diving, but can be done while diving on surface supply, snorkeling, swimming, from a submersible or remotely operated underwater vehicle, or from automated cameras lowered from the surface.
Underwater photography can also be categorised as an art form and a method for recording data. Successful underwater imaging is usually done with specialized equipment and techniques. However, it offers exciting and rare photographic opportunities. Animals such as fish and marine mammals are common subjects, but photographers also pursue shipwrecks, submerged cave systems, underwater "landscapes", invertebrates, seaweeds, geological features, and portraits of fellow divers
Some cameras are made for use underwater, including modern waterproof digital cameras. The first amphibious camera was the Calypso, reintroduced as the Nikonos in 1963. The Nikonos range was designed specifically for use underwater. Nikon ended the Nikonos series in 2001[1] and its use has declined, as has that of other 35mm film systems. Sea and Sea USA made the Motor Marine III, an amphibious range-finder camera for 35mm film.[2][3]
Olympus TG-3 camera and its underwater housing front view
A waterproof camera and waterproof light source setup for professional underwater photography
GoPro Hero5 action camera in underwater housing
Seaview SVII Camera using three dome ports for all round view
Cameras made for dry work can also work underwater, protected by add-on housings, which are made for point and shoot cameras, compact cameras with full exposure controls, and single lens reflex cameras (SLRs). Most such housings are specific to the camera. Materials range from relatively inexpensive plastic to high-priced aluminum. Housings allow many options: users can choose housings specific to their everyday "land" cameras and use any lens. Underwater photographers generally use wide-angle lenses or macro lenses, both of which allow close focus and therefore a shorter distance to the subject, which reduces the loss of clarity to scattering. Digital media can hold many more shots than standard film (which rarely has more than 36 frames per roll). This gives digital cameras an advantage, since it is impractical to change film underwater. Other comparisons between digital and film photography also apply, and the use of film under water has declined, as it has on land.
Explanation:
QUESTION 10
Twenty first century learning environments promote:
O A. effective learning
B. continuous learning
O c. positive human relationships
OD. all of the above
O E. integration of formal and informal learning
Answer:
D
Experts say 21st century learning must take place in contexts that “promote interaction and a sense of community [that] enable formal and informal learning.”i Thus, this paper will address the relationship of physical spaces and technological systems to learning, but more importantly, it will also consider how those
Explanation:
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Bluetooth headphones does or do not use wireless data transmission
Answer:
To put it simply: no, using Bluetooth won't affect your cellular data in any way. Bluetooth works using short-range radio waves, not an internet connection. This means that Bluetooth will work anywhere you have two compatible devices — you don't need any sort of data plan, or even a cellular connection.
some does some does not
"queries are questions", true or false?
Answer:
they are similar so I think it is true
Explanation:
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Selma writes the following four answers in her Computer Science examination.
State which computer terms she is describing.
“It is a signal. When the signal is received it tells the operating system that an event has occurred.”
Selma is describing
Answer:
Interrupts.
Explanation:
A software can be defined as a set of executable instructions (codes) or collection of data that is used typically to instruct a computer on how to perform a specific task and solve a particular problem.
The four (4) input-output (I/O) software layers includes the following;
I. User level software: it provides user programs with a simple user interface to perform input and output functions.
II. Device drivers: it controls the input-output (I/O) devices that are connected to a computer system through a wired or wireless connection.
III. Device-independent OS software: it allows for uniform interfacing and buffering for device drivers.
IV. Interrupt drivers (handlers): it is responsible for handling interruptions that occur while using a software on a computer system.
An interrupt is a signal from a program or device connected to a computer and it's typically designed to instruct the operating system (OS) that an event has occurred and requires an attention such as stopping its current activities or processes.
In conclusion, the computer term that Selma is describing is interrupts.
Answer:
Interrupts
Explanation:
Dr Martin Luther King and his followers go to Selma, Alabama to attempt to achieve, through non-violent protest, equal voting rights and abilities for black people. In 1964, Dr. Martin Luther King Jr. of the Southern Christian Leadership Conference (SCLC) accepts his Nobel Peace Prize.
A small business utilizes a SOHO router and wishes to secure its existing wireless infrastructure. The business has fewer than ten devices, which are a mixture of old and new machines. Due to the varying ages of the machines, the latest wireless encryption methods may not be supported on all devices. Which of the following would be the MOST cost-effective method to add a layer of security while allowing all machines to connect?
A. MAC filtering
B. 802.1X
C. WPA2
D. EAP-FAST
Answer:
C
Explanation:
WPA2 builds on its predecessor, WPA, and is specifically designed to meet the most demanding enterprise security needs. ... Furthermore, because WPA2 is backwards- compatible with WPA, organizations that have already implemented the WPA standard can migrate to WPA2 at their own pace.
Carlos, a network technician, replaces a failed switch with a new switch. Carlos informs the users on the subnet served by the switch that they can reconnect to the network. One user calls to report that she is still unable to access any resources on the network. Carlos checks the indicator light for the switch port to which that user is connected. The LED light is not lit. What action should Carlos take next to resolve this problem
Answer:
Explanation:
If the indicated network switch port has no glowing green LED then that switch port is either off or failing. This can sometimes happen even with newly replaced switches. In this case Carlos should first check to make sure that the switch port is properly installed. If so, then he should switch the port for a new one. If the LED light turns on and is still not green, then it may be an error with a faulty cable, and in this case Carlos should replace the cable with a new one, which should solve the issue.
what is the basic unit of measuring storage capacity of computer?
Answer:
All data are stored on 1s and 0s computers (bits). We explain how much data we store using conditions such as kilobytes and megabytes.
Explanation:
Storage devicesAll are stored in 1s and 0s on a computer. One of only 1 0 is called 'bit' in a computer. It takes 8 1s and 0s if we save a character in a computer, so we could say it needs 8 bits to store a character.
Computer and memory storage is frequently measured in megabytes and gigabytes (GB). A medium-sized novel includes approximately 1 MB of information. One MB is 1024 kilobytes, not a million bytes, or 1,048,576 bytes (1024x1024).
Similarly 1 GB is 1.024 MB (1024x1024x1024) bytes, or 1.073.741.824 bytes.