what is purpose of indexing​

Answers

Answer 1
ANSWER:
Indexing is accessing your data faster; readings and updates in the database.

EXPLANATION:
Indexes allow you to look up a small subset of the fields called keys, which are stored in an ordered order, and find the actual data using the key. These keys in the index point to the actual data records.

Indexes also help in sort operations, if the sort is on an indexed field. Also, a single index can be useful in multiple queries.

Indexes take up storage space and, while they are running, memory. When data is created or updated, the indexes need updates, sometimes; that's extra write. Therefore, the use of indices needs careful study.

Related Questions

Which option is used once a sparkline has already been inserted to format it to a particular type and color? Insert tab, Sparklines group Insert tab, Filters group Sparklines Design contextual tab Sparklines Format tab

Answers

Answer:

A. Insert tab, Sparklines group

Explanation:

Answer:

a your welcome

Explanation:

what maybe the possible disadvantage of convergence in our country using technology?​

Answers

Answer:

Advantages of Access

- Inexpensive

- Efficient

- Convenient

- Faster

Disadvantages of Access

- Technology Crashes

- Loss of Memory

- Safety

Advantages of Connectivity

- Staying in Touch

- You Can Work Anywhere

- You Can Never Get Lost

Disadvantages of Connectivity

- Not Safe

- Risk of Hacking

- Detached from Reality

- To Reliant on Technology

Advantages of Convenience

- Don't Have to Carry Lots of Equipment

- Never Bored

- Never Miss a Moment on Camera

Disadvantages of Convenience

- Tech. Break Down

- Addiction

Advantages of Immediacy

- Become Expectant

Disadvantages … (more)

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Zisse Mueller, Marketing Operations Specialist at IT Central Station

Answered April 23, 2019

There are pros and cons when it comes to using converged technologies.

For example, this user writes about FlexPod, a converged infrastructure:

Pro: “It scales well. It allows us to have very flexible architecture but to have the same level of simplicity that we'd normally expect in hyper-converged environments.”

Con: “I'd like to see a little bit simpler management pane. Using UCS Director to front everything is good but for a lot of that upper mid-market, it's probably a little bit of overkill for what they need. They just want a nice, simply portal to go through and see what's going on. So if … (more)

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How does BigCommerce compare to Magento for mid-market and enterprise-level brands?

Victoria Fryer, Content Marketing Manager at BigCommerce (2019-present)

Answered July 23

Magento, an open-source ecommerce software with both on-premise and cloud-hosted options, is often top of mind for businesses seeking an enterprise-grade shopping cart software and content management system (CMS). But it’s definitely not the only option. Many businesses today are looking t

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Related Questions

More Answers Below

What are advantages and disadvantages of converged networks?

What are the five advantages and disadvantages of the use of digital technology?

What are the disadvantages of technology?

Anonymous

Answered October 13, 2016

You have not defined “convergence technologies” and thus this answer cannot be answered.

1.5K viewsView Upvoters

Yasaswi Kompella

Answered June 8, 2016

this is the disadvantage

232 views

Related Questions

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What are the five advantages and disadvantages of the use of digital technology?

What are the disadvantages of technology?

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What is the meaning of Converging technology?

What are the disadvantages of digital technology?

What are some disadvantages modern technology has brought us?

What are the advantages of technological transfers?

What are the disadvantages of technological convergence?

What are the disadvantages of technology nowadays?

What are the pros and cons of technology?

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What are the disadvantages of convergence?

Related Questions

What are advantages and disadvantages of converged networks?

What are the five advantages and disadvantages of the use of digital technology?

What are the disadvantages of technology?

Explanation:

The 2960 switches have been taken out of the box and cabled, and PC2 can communicate through R1 with the rest of the IP network. However, no configuration has been added to either SW1 or SW2. As a result, the network engineers sitting at a management station to the right of R1 cannot ping or telnet to SW2. Required:
What configuration commands, when entered in the correct order on SW2, allow the network engineer to ping or telnet to SW2 from the management station?

Answers

The correct order of configuration commands on switch 2 (SW2) that would allow the network engineer to successfully ping or telnet to SW2 from the management station are:

Enter IP address of switch 2 (SW2).Set IP default-gateway.Configure interface VLAN 1.No shutdown

What is a command?

A command can be defined as a set of instructions that are typically used to configure a network device such as a switch, so as to make it active on a computer network and enable it perform certain tasks automatically during network communication.

In Computer networking, commands can be used to ensure the interfaces (ports) on a switch are active and open for connections from other network devices such as:

RoutersWorkstations (computers)

In this scenario, the network engineer should use the following configuration commands on switch 2 (SW2), so as to successfully ping or telnet to SW2 from the management station are:

Enter IP address of switch 2 (SW2).Set IP default-gateway.Configure interface VLAN 1.No shutdown

Read more on a switch here: https://brainly.com/question/13243868

Josh's boss asked him to write a letter to their customers explaining some upcoming price increases, but Josh was in a hurry to get off work, so he didn't take the time to get the information he needed to explain the increase. As a result, the e-mail was confusing and disorganized. Josh's e-mail has the characteristics of _____.

ineffective communication
workplace communication
effective communication
barriers to communication

Answers

Answer:

ineffective communication

Explanation:

Please help asap
what does the following statement describe?


a ______ allows you to divide a single system into multiple versions known as guests that run on ______that connect to the physical hardware.

options for the first blank
container
hypervisor
server

options for the second blank

virtual machines
cloud services
host machines

Answers

Answer:

hypervisor and cloud services

Explanation:

could u mark me as brainliest?

Answer:

The correct answers are:

Hypervisor

Virtual Machines

Explanation:

I got it right on the Edmentum test.

Today, there are many computer categories. A(n) ________ is the category for the world's fastest computers. ________ computers are large, expensive devices capable of simultaneously processing data for thousands of users. Computers used by Google and Web service providers are classified as________. Personal computers come in several varieties. A(n)________ computer fits on a desk, runs on power from an electrical wall outlet, and can be housed in a horizontal case or vertical case. Three categories of portable computers include tablets, smartphones, and clam-shell style________ computers. Selecting a digital device requires consumers to select a platform based on form factor and operating system. MacOS is the operating system that runs on Apple laptops and ________ computers. The operating system for iPhones and iPads is ________ . The________ operating system from Microsoft runs on laptop and desktop PCs, whereas a derivative version is designed for tablets and phones. The open source community produces Linux for desktops and servers. This family of operating systems also includes Chrome OS, and________ , which is popular for tablets and smartphones.

Answers

Answer:

Supercomputer

Mainframe

Servers

Desktop

Laptop

Mac

iOS

Windows

Android

Explanation:

Speed is salient characteristic of supercomputers. The Mainframe computers are usually used by large companies and are very expensive with large processing capability. Servers enables thw possibility of establishing connections with service providers such as Google and other related companies. Desktop computers are those which aren't designed for portability or being easily carried around. The Laptops on the other hand are more compact and easily carried around. Mac are operating systems associated with Apple computers and iOS is the operating system used on iPhones and other Apple smart mobile devices. Windows is the me of the operating system used by Microsoft. Android is also a popular operating system used on smartphones.

How would YOU define AI?

Answers

Answer:

If you meant by artificial intelligence then it’s the simulation of human intelligence processes by machines especially computer systems

Explanation:

Hello!

Answer:

An access list (AL) is a list of permissions used in physical and information technology (IT) security to control who is allowed contact with a corporate asset. The asset can be a building, a room or a computer file.

Wish you luck!

List 3 tanks that a computer can perform ​

Answers

Answer:

Input, output, processing, and storage

Explanation:

Computers deal with input, how much information and letters and whatnot is typed or inputted on a computer. They also deal with output, the result of an input value. In between the input and output stages, they process the information before returning the output value. They have storage for history and a short RAM list, so they can remember all the input values inserted recently.

What are some of the challenges of note-taking? Check all that apply.

It can take up a great deal of time in class.
It can lessen preparation time before tests.
It does not support retention for the student.
It can be distracting in the middle of a lecture.
It can cause the student to miss information.

Answers

Explanation:

it can take up a great deal of time in class.

it can be distracting in the middle of a lecture.

it can cause the student to miss information.

These are some of the challenges of note taking:

It can take up a great deal of time in class.It can be distracting in the middle of a lecture. It can cause the student to miss information.

Note-taking can be described as the jotting of important details on a book or notepad during a lecture or class.

Note taking is very important because the student can also refer to it when needed to extract important information.

With its advantages, it also has some disadvantages for the learner.

The learner may become too engrossed in his note taking and end up missing out on other things that are being done in the classroom.

Also it could cause the student to stop listening further to what is being taught. They may become too engrossed with copying what they had heard earlier.

Read more on note-taking here: https://brainly.com/question/17184401

any two example of numeric​

Answers

Answer:

Numeric is anything of, relating to, or containing numbers. The numbering system consists of ten different digits: 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9. If a value is an alphanumeric, it contains letters and numbers.

Explain the following IT terms Network: Packet: Router: IP address: Server: LAN: WAN: Bus topology: Ring topology: Star topology: Mesh topology: ISP: Dial-up: DSL: Cable Broadband: Fiber Optic: Mobile: explain all pls

Answers

Answer:

IT terms Network:

Networking, also known as computer networking, is the practice of transporting and exchanging data between nodes over a shared medium in an information system.

Packet: Networking, also known as computer networking, is the practice of transporting and exchanging data between nodes over a shared medium in an information system.

Router: A router is a networking device that forwards data packets between computer networks. Routers perform the traffic directing functions on the Internet.

IP address: For the most part, an IP address tells you the city, ZIP code, or area code of your ISP, as well as your ISP's name. What can an IP address tell you? To some degree, your physical location and also the name of your ISP

Server: A server operating system, such as Windows Server or Linux, acts as the platform that enables applications to run. The operating system provides applications access to the hardware resources that they need and enables network connectivity. The application is what enables the server to do its job.

LAN: A local area network (LAN) consists of a series of computers linked together to form a network in a circumscribed location. The computers in a LAN connect to each other via TCP/IP ethernet or Wi-Fi. A LAN is normally exclusive to an organization, such as a school, office, association or church.

WAN: A wide area network (also known as WAN), is a large network of information that is not tied to a single location. WANs can facilitate communication, the sharing of information and much more between devices from around the world through a WAN provider.

Bus topology: also known as line topology, is a type of network topology in which all devices in the network are connected by one central RJ-45 network cable or coaxial cable. The single cable, where all data is transmitted between devices, is referred to as the bus, backbone, or trunk.

A ring topology: is a network configuration where each networked device is connected to two other devices on either side of it to form a circular “ring” data path. When data is transferred in a ring topology, the data is sent in one direction along the single continuous pathway.

Star topology: is a network topology in which each network component is physically connected to a central node such as a router, hub or switch. In a star topology, the central hub acts like a server and the connecting nodes act like clients.

A mesh topology: is a network setup where each computer and network device is interconnected with one another. This topology setup allows for most transmissions to be distributed even if one of the connections goes down. It is a topology commonly used for wireless networks.

Your ISP: is the company that gets you onto the Internet – your home Internet or mobile data provider. If your ISP is spying on you, it means they can use or sell your browsing history to others for things like creepy ads that follow you around the Internet or to junk mail providers.

Dial up: relating to or being a standard telephone line used for computer communications also : accessible via a standard telephone line a dial-up Internet provider.

DSL: DSL stands for Digital Subscriber Line, and describes a family of technologies used for digital data transmission and connection to the Internet. It is a type of broadband communication service available to homes and businesses that uses existing phone lines without interrupting telephone use.

Cable Broadband:  Cable broadband connects your home to a fibre cabinet in your area. However, instead of using copper wires, cable broadband uses coaxial cables to connect to the cabinet, giving you a much faster internet connection than the traditional copper phone line cables used for 'superfast' broadband connections (up to 60Mbps)

Fiber optics: is used for long-distance and high-performance data networking. It is also commonly used in telecommunication services, such as internet, television and telephones.

A mobile network (also wireless network) route's communications in the form of radio waves to and from users. It is composed of base stations that each cover a delimited area or "cell." When joined together these cells provide radio coverage over a wide geographic area.

Explanation:

I’m select circumstances is a permissible character on the Mac operating system

Answers

Answer: /

Explanation: Answer

Describe the big data life cycle. Which step do you think is most useful and why?

Answers

Answer:

Big data lifecycle consists of four phases: data collection, data storage, data analysis, and knowledge creation. Data collection phase consists of collecting data from different sources. In this phase, it is important to collect data from trusted data sources.

I think business cases analysis is the most useful step because (BCA) provides a best-value analysis that considers not only cost but other quantifiable and non-quantifiable factors supporting an investment decision. This can include but is not limited to, performance, producibility, reliability, maintainability, and supportability enhancements

Explanation:

mark me brainliest

List two advantages and disadvantages on conversion of number systems

Answers

Answer:

Look at the explanation!!

Explanation:

Computer number systems are built around the core processor. Most of these are binary, but trinary machines have also been considered.

Working in binary is faster, since one already handles the carry, and there is no weird carry rules like BCD would use. On the other hand, it is possible to implement this in hardware too.

On the other hand, one has to convert stuff from binary to something more readable, like decimal or whatever.

Computers do not store negative numbers as such. Instead, they use a cycle of 256 (or some power), and negative numbers are given as 256-n, for example, -5 would be 251, or worse still 4294967291, that is in hex, FFFFFFFFB, since adding 5 to this would give 0 = (1)00000000, the 1 is lost.

In ternary numbers, the values are different, and a balanced ternary, with digits of -1, 0, 1, would express negative numbers quite easily, eg -5 is 0000000M11, that is -9+3+1 = -5. It’s still possible to determine the sign of this number, but you have to pass it through a special gate to find the first non-zero digit, ie here M.

Select the correct answer.

Which is an attribute of analog communication?

A. Using a cell phone
B. Using cables to transmit data
C. Using binary
D. Using a DVD

ASAP pls! 20 points!​

Answers

Answer:

b

Explanation:

Please explain in 2-4 sentences why diligence is needed and is important in building a pc. Thank you

Answers

Diligence is required for a variety of reasons. I’m going to give you two. Remember, when you’re building a PC, you’re handling hundreds of dollars worth of hardware that are also very fragile (a cord could make all the difference). Two, you need to know and understand how to make a PC. If you have no idea how to build one, RESEARCH FIRST.

Hope this helps.

Use a recursion tree to determine a good asymptotic upper bound on the recurrence T(n) = 4T(n/2 + 2) + n. Use the substitution method to verify your answer.

Answers

Answer:

Follows are the solution to this question:

Explanation:

The scale of the subproblem for a node is [tex]\frac{n}{2^i}[/tex]  at depth.  

The tree then has lg n + 1 and [tex]4^{lg n} = n^2[/tex]leaves.  

Complete costs for all depth I nodes for I = 0. 1 , 2, ......, lg n-1 is:[tex]4^i ( \frac{n}{2^i}+ 2 ) = 2^i n + 2\times 4^i.[/tex]

[tex]T(n)= \sum_{ i = 0}\lg n - 1( 2^i n + 2 . 4^i )+ \Theta (n^2)\\\\[/tex]

        [tex]= \sum_ {i = 0} \lg n - 1 2^i n + \sum_{i = 0} \lg n - 12 \times 4^i + \Theta (n^2)\\\\= [ \frac{ 2\lg n - 1}{ 2 - 1} ]n + 2 \times [ \frac{ 4\lg n - 1}{ 4 - 1} ]n + \Theta (n^2)\\\\= ( 2\lg n - 1) n] + (\frac{2}{3})( 4\lg n - 1)+ \Theta (n^2)\\\\= (n-1)n - \frac{2}{3} (n^2 -1) +\Theta (n^2)\\\\= \Theta (n2)\\[/tex]

verfify the value:

[tex]\to T(n) \leq c (n^2 - dn) \\\\T(n) = T(n) = 4T((\frac{n}{2}) + 2) + n \\\\ \leq 4c [ ((\frac{n}{2}) + 2)2 - d((\frac{n}{2}) + 2) ]+ n \\\\ \leq 4c [ (\frac{n^2}{4} + 2n + 4) - \frac{dn}{2} - 2d)]+ n \\\\\leq cn2 + 8cn + 16c - 2cdn - 8cd + n\\\\\leq cn2 -cdn + 8cn + 16c - cdn - 8cd + n\\\\\leq c(n2 -dn) - (cd- 8c - 1)n - (d - 2). 8c\\\\\leq c(n2 -dn),\\\\[/tex]

Where there is the last stage for  [tex]\to cd - 8c -1 \geq 0[/tex].

Diseconomies of scale are likely to result from which one of the followings?

Answers

In microeconomics, diseconomies of scale are the cost disadvantages that economic actors accrue due to an increase in organizational size or in output, resulting in production of goods and services at increased per-unit costs. The concept of diseconomies of scale is the opposite of economies of scale.

Write a function named `freq(l)` that takes a list `l` of numbers
and returns a tuple of the most frequent number and its frequency.
For example, `freq([1,2,3,4,5,2,3,4,5,3,4,5,4,5,4]) returns (4,5)
because number 4 appears 5 times in this list. If multiple numbers
appear as most frequent, then the first element of the returned
tuple is a list of all those numbers. For example,

freq([1,2,3,1,2,1,2,3,1,2]) will return ([1,2], 4) because both
1 and 2 appear 4 times in the list.

Answers

The function named `freq(l)` that takes a list `l` of numbers and returns a tuple of the most frequent number and its frequency is as follows;

def freq(l):

    s = { x for x in l }  

    lt = [ (x, l.count(x)) for x in s ]

    mn = max(lt,key=lambda item:item[1])[1]

    r = ([ x for (x,v) in lt if v == mn], mn)

    return r

print(freq([1,2,3,4,5,2,3,4,5,3,4,5,4,5,4]))

Code explanation;

The code is written in python.

we defined a function named "freq" and it accept an argument named l. The second line we get the unique values using sets.The variable "lt" is use to store list of tuple containing unique values and their occurrences in the list."mn" is a variable use to store the maximum number of occurrences.Then, the variable r is use to store the resulting tuple, filtering out all the items with less occurrences than the maximum.we returned the variable "r".Then we call our function with the parameter.

learn more on python here: https://brainly.com/question/4503928

How is technology a mode of revealing?​

Answers

Answer: First, the essence of technology is not something they make; it is a mode of being, or of revealing.

Explanation:  This means that technological things have their own novel kind of presence, endurance, and connections among parts and wholes. They have their own way of presenting themselves and the world in which they operate.

what amount of memory enough to store alatter of the alphabet or store a small number​

Answers

Answer:

It can be "ON" or "OFF". So it can store the numbers 1 and 0, but it certainly doesn't have the capacity to store a letter of the alphabet.

Explanation:

How to trigger watchers on initialization in vue.js ?

Answers

Answer:

variable when the component is mounted. This triggers the watchers which then triggers an emit i have in the watcher. I do not want the emit to happen when the variable is only being initialized. The variable is from the data section of the vue component.

Write a program that: program starts; declares and initializes to .06625 constant float variable NJSALES_TAX; declares and initializes to 1000 an integer variable total; declares and initializes to zero a float variable grand_total; prompt and input on new line total; calculate grand_total to equal total plus (total*SALES TAX); if grand_total <= 1000 print on new line "Grand total is less than or equal to 1000 it is $" and the grand_total to two decimal places; else if grand_total between 1000 <= 2000 print on new line "Grand total is more than 1000 less than or equal to 2000 it is $" and the grand_total to two decimal places; else print on new line "Grand total is greater than 2000 it is $" and the grand_total to two decimal places; just before ending print on new line "Program finished!" then terminate program.

Answers

Answer:

Written in C++

#include<iostream>

using namespace std;

int main() {

const float SALES_TAX = 0.06625;

int total = 1000;

cout<<"Total: ";

cin>>total;

float grand_total = 0;

grand_total = total + total * SALES_TAX;

if (grand_total <= 1000) {

cout<<"Grand total is less than or equal to 1000 it is $";

printf("%.2f", grand_total);  

}

else if (grand_total > 1000 && grand_total <= 2000 ) {

cout<<"Grand total is more than 1000 less than or equal to 2000 it is $";

printf("%.2f", grand_total);  

}

else {

cout<<"Grand total is greater than 2000 it is $";

printf("%.2f", grand_total);  

}

cout<<"\nProgram finished!";

return 0;

}

Explanation:

I've added the full source code as an attachment where I use comments to explain difficult lines

What is the fastest internet?

Answers

Answer:

Xfinity

Explanation:

An evaluation of the Best Internet Service Providers found Xfinity offers the fastest internet plan. Its fiber-based Gig Pro plan is the company's quickest, featuring equal download/upload speeds of 2,000 Mbps.

Which term best describes the role of a printer in a network?
O shared resource
O server
O port
O router

Answers

Answer:

Correct answer is Shared Resource.

Explanation:

Answer:

Shared Resource

Explanation: Because multiple clients can use it

A computer can perfome three basic types of operations, mathematical, logical and ...........​

Answers

Answer:

The basic operations performed by a computer are arithmetic operations, logical operations and storage and relative functions.

Explanation:

Answer:

the three basic operations performed by a computer are 1. mathematical or arithmetic operations. 2. logical operations

3 storage and relative operations.

Analyze and interpret this statement "life is not a grand harmony, conflict exist"

Answers

Answer:

Life is not always easy and fair. There will be ups and downs, happy and sad. You have to fight for for everything good in this world because nothing good comes easy.

Microsoft PowerPoint is the best example of Multimedia Presentation Software. *


True or false​

Answers

Answer:

true yes it is a good example

A Software application that access web application and websites

Answers

Answer:

Web Application

Explanation:

#carryonleraning

Your desktop, internet explorer, and the media player can be started from this area on most computers

Answers

The answer is quick launch
Other Questions
Which is of better importance, the benefits that dams bring or the damage they do? Explain your reasoning. A trampoline is shaped like a circle. The radius of the trampoline is 4 feet. Around the edge of the trampoline is 0.75 foot wide padded cover over the springs. This pad looks like a ring around the edge of the trampoline.What is the probability of a student landing on the padded cover over the trampoline springs?Enter the answer, rounded to the nearest hundredth, in the boxes.Probability landing on the padded cover over trampoline springs = Income alone does not give the full picture of standard of living. Why not? 1. What did the Pinckney Treaty do?It established a military alliance between the United States and Spain.It required Spain to evacuate East and West Florida.It allowed Americans to store their trade goods in New Orleans free of charge.It did all of these things. please help me with this question! Felicia brought 5/9 of a gallon of water for the track team. She poured the same amount of water into 10 cups. Then she calculated how much water she poured into each cup.Which expression would you use to find the amount of water in each cup?10 x 5/9 10 divided by 5/9 5/9 divided by 105/9 x 10 whats the biggest thing in the whole universe Sorry that the photo is sideways. What is the product of 4 Over 5 times two-fifths?A model representing 4 Over 5 and two-fifths 6 Over 25 8 Over 25 6 Over 10 20 Over 10 I neeed help please Pillow lavas are ________. andesitic bombs erupted from a cinder cone that accumulate as pillow-like masses around the cone rhyolite glasses that develop a banding that resembles a pillow case with internal snowflake obsidian that looks like feathers basaltic magmas erupted on the seafloor as magma blobs from an explosive, submarine eruption basaltic lava tubes erupted on the seafloor in volcanic piles analogous to toothpaste extruded from a tube Select all the structures that would be typical of a baroque musical composition. Multiple select question. Three consecutive, identical movements of instrumental music An instrumental section followed by a vocal section A fast, energetic movement followed by a slow, solemn movement Alternation between a small group and a large group of instruments Choose the correct graph of the function y=-2(2^x) Several masses m are determined to be equal by comparing them on an equal-arm balance, and a large mass M is found to just balance two of the small ones on a similar balance. The mass M and one of the masses m are each forced to go around a bend of 1.0 m at a constant speed of 1.0 m/s. As they move around the curve their magnitudes of the forces acting on them areQuestion 1 options:a) equal.b) in the ratio of 4:1.c) along the direction of motion.d) in the ratio of 2:1.e) zero. A physics student stands on a bathroom scale in an elevator which is not moving. The scale reads 604 N. The elevator then accelerates downward at 1.98 m/s2. What does the scale read during this acceleration? Find the value of x. Write your anser in simplest form Pls help thank you.. Match to the best answer. You will not use all the options and you cannot use the same option more than once. A. Risk-Return trade-off G. Crony capitalism F. Marginal benefit - Balance of payments H. Lorenz curve E. Scarcity - Marginal cost A. Safe investments make little money B. Change in total revenue C. CA+NX=0 D. Change in total cost E. When demand exceeds our ability to fulfill those demands F. Change in total benefit G. Capitalism characterized by a government-manipulated economy H. Represents actual distribution of income I. Property rights must be clearly defined and strictly enforced How many grams of o2 are needed to produce 45.8 grams of Fe203 in the followingreaction?4Fe(s) + 302(g)2Fe2O3(s) What is 5 divided by 5 I dont know