The answer is (a) To write the sum (-2)5 (-1)5 ⋯ 75 using summation notation, we need to first figure out how many terms are in the sum. We can do this by finding the difference between the first and last terms and adding 1: 7 - (-2) + 1 = 10. So there are 10 terms in the sum. We can then use the index variable k to represent each term in the sum, starting with k = 1 for the first term. The sum can then be written as:
∑k=1^10 (2k-7)5
This says to add up the terms (2k-7)5 for k = 1 to k = 10.
(b) The sum (-2) (-1) 0 1 2 3 4 5 is just a sequence of consecutive integers, so we can use the formula for the sum of an arithmetic sequence to write it using summation notation. The first term is -2, the common difference is 1, and there are 8 terms. We can write the sum as:
∑k=1^8 (-2 + k - 1)
Simplifying this, we get:
∑k=1^8 (k - 3)
(c) The sum 22 23 24 25 26 27 28 is another sequence of consecutive integers, starting with 22 and ending with 28. We can use the formula for the sum of an arithmetic sequence again to write it using summation notation. The first term is 22, the common difference is 1, and there are 7 terms. We can write the sum as:
∑k=1^7 (22 + k - 1)
Simplifying this, we get:
∑k=1^7 (k + 21)
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a presentation is widely used to present ______ and ______ effectively
Answer:
a presentation is widely used to present beautiful and more effectively
Explanation:
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What are the basic parts of sewing machine?
Answer:
1. Spool Pin
Thread usually comes on a spool. That is the wooden thread holder you buy in the store. The spool pin holds the spool of thread for you making it easier for you to thread your machine and keep the thread coming as you want it to. Read about the spool pin felt.
2. Bobbin Binder Spindle
A bobbin is a little cylinder that may come with or without flanges. It holds the thread that is wound around it. The spindle is where the bobbin is placed during winding.
3. Bobbin Winder Stopper
The bobbin is only so large. It cannot always hold the amount of thread you want to put on it. This part stops the bobbin from collecting thread when it has reached full capacity.
4. Stitch Width Dial
On many newer sewing machines, you get a variety of stitch options to use. The purpose of this part is to control the zig-zag stitch option while you are busy concentrating on your sewing.
5. Pattern Selector Dial
This little dial allows you to select one stitch pattern out of the many that come built into your sewing machine. You just turn the dial to get the pattern that you want on your clothes and other fabrics you want to mend or create.
6. Hand Wheel
This is the manual needle control which raises or lowers the needle. It is usually located at the right-hand side of the machine. It shouldn’t be that hard to turn.
7. Stitch Length Dial
More recent sewing machines may have this part attached to them. Its purpose is to control the length of your selected stitch. This helps you stay in control of your sewing duties and make sure you get what you want and need.
8. Reverse Stitch Lever
Once you push this lever, you get to sew in the opposite direction. This function makes your sewing a little easier and faster to do because you can go forward or in reverse when you need to.
9. Power Switch
You already know what this switch does. The key to using it is to make sure you turned your sewing machine off before you walk away. Also, it should be located at the right side of your machine.
10. Bobbin Winder Thread Guide
When you activate this part on your sewing machine, you are guiding the thread towards the bobbin/ This makes winding your thread up a little easier and should prevent twists, tangles or caught thread.
11. Thread Tension Dial
Tension is important when you do your sewing. Too loose can cause you problems and too much tension could snap your thread and make sewing more time consuming as you have to re-thread the machine. This little part simply controls the tension on the thread so be careful when you use it.
12. Thread Take-Up Lever
Your top thread passes through this part as you do your sewing. The lever moves up and down with your needle so do not be alarmed that it is constantly moving.
13. Needle Clamp Screw
Needles do not stay in place by themselves. It would be nice if they did. You need this part to hold your needle where it is supposed to be. It also makes sure your needle is secure as it moves.
14. Presser Foot
This is the part that holds your fabric so it doe snot slip all over the place while you are working. Controlling your fabric is important while you do your sewing.
15. Bobbin Cover
Your sewing machine parts do need some protection to keep them in top working order and to help then last you for years. This is the job of the bobbin cover. It protects the bobbin as it covers it.
16. Bobbin Cover Release Button
Also, you need access to your bobbin when it its filled with thread or there is a problem. This release button helps you to remove the bobbin cover so you have complete access to your bobbin.
17. Feed Dog
It is an interesting name, but it has a very straightforward function., This part feeds your fabric through the sewing machine while you are sewing. This helps you concentrate on other sewing needs as you work.
18. Needle
Another self-explanatory label that tells you everything you need to know. The needle is an integral part of the sewing machine and without it, the other parts cannot do their job.
19. Needle Plate
This part is located right under the needle and an under the presser foot. Its job is to help move the fabric forward as you sew. It may help help push the fabric back when you use the reverse mode on your sewing machine.
Explanation:
You can use this keyboard shortcut to toggle the visibility of the command line. If for some reason your command line is hidden from the drawing area, then use this keyboard shortcut to bring it back *
Answer:
Ctrl + 9
Explanation:
You can use this keyboard shortcut to toggle the visibility of the command line
Documental acerca de los principales materiales que se emplean en la fabricación de medios técnicos utilizados en una oficina.
Answer:
Los equipos técnicos utilizados en una oficina y los principales materiales utilizados en su fabricación son;
Equipo de oficina [tex]{}[/tex] Material utilizado en la fabricación
1) Impresoras; [tex]{}[/tex] Acero, aluminio, alambres de cobre, plástico, rodillos
2) Monitor de computadora; [tex]{}[/tex] Pantalla de vidrio, plástico, cables, placas de circuito, resortes
3) Escáneres; [tex]{}[/tex] Alfombra compuesta, mesa de vidrio, carcasa de plástico, cables
4) Copiador; [tex]{}[/tex] Carcasa de plástico, contenedor de tóner, placa de vidrio, cables de alimentación
5) Proyector; [tex]{}[/tex] Lente de vidrio y carcasa de metal para lámpara, cables de alimentación
6) Desfibradora; [tex]{}[/tex] Engranajes de plástico, correa de cadena de metal, rodamientos
Explanation:
A client needed a software application to be delivered with a demo of the working software at every stage of development. The project head ensured that all the team members were in the same location. The work was completed in a short duration with minimal documentation and through continuous customer interaction. Which model did the team use? A agile B. spiral C waterfall D. RAD
Answer:
Rapid Application Development (RAD)
Explanation:
Software development life cycle (SDLC) can be defined as a strategic process or methodology that defines the key steps or stages for creating and implementing high quality software applications.
RAD is an acronym for rapid application development and it is a model that is typically based on the concepts of prototyping and iterative development technique with minimal documentation or planning involved.
In the RAD model, more priority is given to the development of the software while minimal attention is given to documentation or planning. Therefore, it focuses on developing softwares within a short period of time and using prototypes (working modules) such as templates, codes, processes, tools, etc.
Basically, the RAD model comprises of five (5) phases and these includes;
I. Business modeling.
II. Data modeling.
III. Process modeling.
IV. Application generation.
V. Testing and turnover.
In conclusion, the RAD model allows software application to be delivered with a demo of the working software at every stage of development for continuous customer interaction.
Answer:
Its rad ladies and gentlemen
Explanation:
who developed vacuum tube and when?
Answer:
In 1904, John Ambrose Fleming invented the first vacuum tube.
Explanation:
Which of these best represents a call to action?
O A. Bright colors on a billboard
O B. "Buy 1 Get One Free!"
O C. Loud background music to a commercial
O D. "Come in today!"
Answer:
d
Explanation:
d just did it
"Come in today!" best represents a call to action. Thus, option D is correct.
What is a call to action?This is an instruction on a webpage or a house call that directs the customer to execute an action. Traditionally, a call to action is expressed as a directive and deed that a person needs to come in soon. Any layout intended to elicit an instant answer or promote an entrepreneurship culture is referred to in promotion as a "call to action."
The shop represents or says that come in today, they were for the customer to come in today and help the people to come in and get the product that is needed.
This suggests that the part there will be a change in the want of the people and the command of the people that the people should immediately want them to come in, it is a strategy to attract the customers. Therefore, option D is the correct option.
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how telecommunications works?
Answer:
Telecommunications are the means of electronic transmission of information over distances. The information may be in the form of voice telephone calls, data, text, images, or video. Today, telecommunications are used to organize more or less remote computer systems into telecommunications networks.
Explanation:
How do computers multitask in an ideal situation?
a. slowly
b. every 30 seconds
c. manually
d.automatically
Answer:
Automatically
Explanation:
In an ideal situation, computers would multitask quickly and without human interference.
A virus which deceive the user by acting as a legitimate file.
Answer:
A Trojan virus
Explanation:
It acts like a bona fide application or file to trick you. It seeks to deceive you into loading and executing the malware on your device
What is the name of tool
Answer:
bro the pic is hazy
Explanation:
but it is looking like octagon
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the guest would like to convert his 100 dollar to peso.How much will the guest receive if the exchange rate is 1 dollar=Php 50.50?
Answer:
the answer is $100
I hope it helps
have a nice day
#Captainpower :~
what is the definition of assiduous?
Answer:
showing great care and perseverance.
Jessica has two pens, one red pen and a black pen. The red pen measures 5 inches while the
black one measures 15.24 cenfimefers.
A) How long is Jessica's red pen in centimeters
B) How long is Jessica's black pen in inches
C) which pen is longer
2) John rode 2 kilometers on his bike. His sister Sally rode 3000 meters on her bike. Who rode the
fasthest and
A) How much did John ride in meters
B) How much did Sally ride in kilometers 2012
C) Who rode the farthesten
D) How much farther did they ride (in kilometers)?
E) How much farther did they ride (in meters)?
3) Faye drew two line segments. The first line segment measures 7 inches while the second measures
10 inches.
A) What is the length of the first line segment in centimeters
B) What is the length of the second line segment in centimeters?
branleast ka sakin pag sinagotan moto promise
pag hindi maayos yan report ka sakin
Answer:
1.
A) 12.7
B) 6
C) The black pen
2.
A) 2000
B) 3
C) Sally
D) They rode 1 kilometers farther
E) They rode 1000 meters farther
3.
A) 17.78
B) 25.4
Explanation:
A=5×2.54=12.7cmB.=15.24/2.54=6inchC.black pencilsalli rode a bike faster thanjohn.A.john ride bike in metre=2×1000=2000m
B.salli ride a bike in kilometre=3000/1000=3 km
C.salli rode a bike fastest.sorry i do not know d,e
3.A=7×2.54=17.78cmB.10×2.54=25.4cm
I charge my stylus 2-3 hours a day. But after all the charging the battery only lasts for 5 minutes. I hope someone can rectify this issue for me. Thank you..
Answer:
Well if your charging it to 100% nd its only lasting 5 minutes it may be because you charger is getting old or is breaking. What model do you have (stylus)
Explanation:
Alice just wrote a new app using Python. She tested her code and noticed some of her lines of code are out of order. Which principal of programing should Alice review?
Hand coding
Line coding
Planning & Analysis
Sequencing
Answer:
Sequencing
Explanation:
I have taken the test
i think i have a virus on my computer what am i supposed to do
Answer:
call like a phone or computer company and ask wjat thry can do
Your task is to identify three or more ways that big data is being collected on a regular basis, including one data collection method for each of the following categories:
Data collection on the internet
Digital data collection from a source other than the internet
Analog (non-digital) data collection being performed in physical places
For each of these data collection practices: Describe how the data collection occurs. Analyze the data collection process by answering the following five questions in complete sentences and to the best of your ability:
What data is being collected?
Why is this data being collected?
What are the likely benefits of this data collection?
How might this data collection cause harm?
How likely is it that this data can be accessed by others?
You may use the internet or any other available resources to identify and analyze these data collection strategies.
Answer:
Data is one of the most valuable resources today's businesses have. ... There are various data-gathering methods you can use with the help of your ... When it comes to data businesses collect about their customers, ... Third-party data offers much more scale than any other type of data, ... Big White Cursor.
Explanation:
The data is one of the most essential and the most important aspects of the modern world and s collected each and every hour. The data forms an essential element of the internet and digital media.
The data is held soly responsible for the generation of numerous possibilities.The data collected can be used for further processing and creation of new contents.Learn more about the tasks to identify.
brainly.com/question/20688743.
Please answer these computer fill in the blanks
1) operators are the _______________ used in formulas to perform a particular calculation
2) the____________feature of Excelhelps to copy the formula quickly
3) Excel provides over ________________used to perform calculations
4) ____________ category of functions includes functions for calculation, and tracking principal and interest
5) ___________ functions returns one of two results you specify based on whether the value is TRUE or FALSE
Answer:
best
cool
Explanation:
3.1.2 Quiz: What Can Information Technology Do for You? Question 8 of 10 What is one reason why a business may want to move entirely online? A. To double the number of employees B. To avoid paying state and local taxes C. To focus on a global market D. To limit the number of items in its inventory
Answer:
C. To focus on a global market
Explanation:
Information technology can be defined as a set of components or computer systems, which is used to collect, store, and process data, as well as dissemination of information, knowledge, and distribution of digital products.
An information technology interacts with its environment by receiving data in its raw forms and information in a usable format.
Generally, it is an integral part of human life because individuals, organizations, and institutions rely on information technology and systems in order to perform their duties, functions or tasks and to manage their operations effectively. For example, all organizations make use of information technology and systems for supply chain management, process financial accounts, manage their workforce, and as a marketing channels to reach their customers or potential customers.
Additionally, an information system or technology comprises of five (5) main components;
1. Hardware.
2. Software.
3. Database.
4. Human resources.
5. Telecommunications.
Hence, information technology or system relies on the data it receives from its environment, processes this data into formats that are usable by the end users.
One reason why a business may want to move entirely online is to focus on a global market through the use of social media platforms and networks to reach out to customers in various geographical location.
a c program to check the greaster number among the two entered number using if else statement
Answer:
#include <stdio.h>
int main(void) {
int number1, number2;
printf("Enter first number: ");
scanf("%d", &number1);
printf("Enter second number: ");
scanf("%d", &number2);
if (number1 > number2) {
printf("%d is greater than %d!", number1, number2);
} else if (number2 > number1) {
printf("%d is greater than %d!", number2, number1);
} else {
printf("%d is equal to %d!", number1, number2);
}
}
PLS HELP ASAP Which is NOT a component of a packet?
trailer (footer)
protocol
body (payload)
header
what is processing unit?
Answer:
A central processing unit, also called a central processor, main processor or just processor, is the electronic circuitry within a computer that executes instructions that make up a computer program.
Explanation:
Answer:
CPU is processing unit.
The main computer case containing the central components of a personal computer is central processing unit.
8.
Which of the following text pieces can be easily typed using right hand?
A. stewardess
B. lillipop
C. typewriter
D. FACE
Answer:
Lillipop
Explanation:
If you have your hands correctly placed on the keyboard, the only hand needed to type the word, "lillipop", is the left hand!
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time to throw poggers xqc time to throw pogchamp time to throw pogchamp time to throw pogchamp time to throw pogchamp time to throw houhouhouhou time to throw poogcham
Answer:
yep
Explanation:
Internet and global communication came with challenges and opportunities, give example of opportunities from real life?
Answer:
Employment - The internet has allowed for people to be able to hire others from all over the globe instead of just in the country that they are based. The employers get access to skilled manpower from more than one place and more often than not, this kind of hiring reduces labor costs. Access to more markets - The internet and global communication have led to prosperity for a lot of people as they are now able to buy and/ or sell goods to many more markets. Think for instance, about the Chinese vendors selling on eBay or Amazon. The internet has allowed them to b able to sell to people all over the world instead of just China. Education : The internet also benefits education as students are now able to get help from other people by logging onto the net. People are also able to study in Universities that are far away from where they are based thanks to the internet allowing for instantaneous communication.What are the main purposes of an operating system?
Answer:
An operating system has three main functions: (1) manage the computer's resources, such as the central processing unit, memory, disk drives, and printers, (2) establish a user interface, and (3) execute and provide services for applications software.
guys do you know any websites that rewrites you text so you don’t get plagiarism?
What are the three components of the fire triangle
Answer:
Fuel, oxygen, and heat.
Explanation:
Select all the correct answers.
Daniel is an app developer. He is working on an app for a retail store selling sports goods. The store manager explains that he would like customers to be alerted whenever there is a sale at the store. Interested customers would also be able to send an immediate response and book items they like from their mobile devices. Which statements about the use of the app are true?
It will make shopping easy.
It will enable quick transactions.
It will enable safety.
It will manage health.
It will save time.
Please I really need it because it will decides my grade.
Answer:
it will make shopping easy
Explanation:
The app will allow customers to shop with their phone instead of locating to the store. It also keeps the customers informed of events and sales for shopping.