How do you remember how to add and subtract negative and positive integers ?
ex. -5-(-7)=
4+(-7)=
Also I don't need any answer to the expressions.

Answers

Answer 1

Answer:

say you have "-5-(-7)". Two negatives create a positive so instead of subtracting, in reality you're adding. whenever you see a "-(-" I tend to automatically know to convert my expression to "-5+7" since -(- looks similar to a + sign.

now say you have "4+(-7)". In reality, you're subtracting. Whenever I see a "+(-" or a "-(+" I am now aware that I'm taking away.


Related Questions

Imagine that you are in charge of a research team. You have been asked to design an experiment to determine the effectiveness of a new drug for decreasing anxiety in adults. In your explanation, describe how you would employ each of the following concepts in your experiment to determine whether the drug is effective:


Sampling

Hypothesis

Operational definitions

Independent variable

Dependent variable

Experimental group

Control group

Answers

The sampling method that can be used on this scenario will be a simple random sampling.

What is a sampling?

It should be noted that sampling simply means a process where a number of observations are taken from a larger population. The simple random sampling can be used where everyone have an equal chance of being selected.

The hypothesis is that the new drug for can decrease anxiety in adults. The operational definition is the procedure that will be used by the researcher.

The dependent variable is anxiety while the independent variable is the drug. The experimental group receives the treatment in an experiment while the control group will be those that didn't use the new drug.

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Consider the following code segment. What is the value of result after the code segment is executed? (WILL GIVE BRAINLIEST IF CORRECT)
A) 6
B) 10
C) 15
D) 21

Answers

Answer:

A) 6

Explanation:

initially x=0,result=0;

the loop executes the first time and changes the values to be 1 and 1

the loop executes the second time and changes the values to be 2 and 2

the loop executes the third time and changes the values to be 3 and 3

the loop executes the fourth time and changes the values to be 4 and 4

the loop executes the fifth time and changes the values to be 5 and 5

and it executes one more time because 5 is not greater than 5

the loop executes the sixth time and changes the values to be 6 and 6

the loop does not execute again because the value of x>5

6 is the value of result after the code segment is executed. Hence, option A is correct.

What is a code segment?

One of the sections of a program in an object file or in memory that contains executable instructions is referred to as a text segment. It can also be referred to as text or a section of code.

In contrast to the code segment, also referred to as the text segment, which is read-only on many architectures, it stores static constants rather than variables. Exons are the coding portions, whereas introns are the non-coding segments. Instead, uninitialized constants and variables are present in the BSS section.

Examples of the four types of segmentation are demographic, psychographic, geographic, and behavioral segmentation. These are typical examples of how businesses could segment their markets according to characteristics like gender, age, and lifestyle.

Thus, option A is correct.

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How did mass destruction of specific populations impact societies after World War 2?

Answers

Answer:

Ignorance.

Explanation:

Ignorance is the one thing leading mankind to destruction.

One way in which the mass destruction of specific populations impacted societies after World War II was by creating a demographic, environmental, psychological, and historical trauma, pain, fear, terror, and instability in people.

What are the consequences of violence?

When a specific group of people is targeted for mass destruction, it can lead to the destruction of their social and cultural values. Which could include damage of their homes and their physical environment, and can take years or even decades to rebuild.

People who experienced such violence and loss of their loved ones may suffer from PTSD and other psychological disorders. This can lead to behavioral changes, such as fear, anger, and even violence. The societal impact of mass destruction can be immense and long-lasting, often leading to generational trauma.

Therefore, One way in which the mass destruction of specific populations impacted societies after World War II was by creating a demographic, environmental, psychological, and historical trauma, pain, fear, terror, and instability in people.

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Your school wants to have 5 computers for every 12 students. There are now 125 computers and 924 students. How many more computers are needed to have a ratio of 5 to 12? whats the anser

Answers

Answer:

You can first set up a ratio to see how many TOTAL computers are needed for a r to 12 ratio.

(5/12) = (x/924) Now cross multiply to solve. 12x = 5(924) 12x = 4620

Divide both sides by 12. x = 385

There are a total of 385 computers needed for the school to have a 5:12 ratio.

Since the school already has 125 computers subtract 385-125 = 260. They need to purchase 260 more computers.

Explanation:

The writer is considering adding the following sentence after sentence 6.

Based on movement tracking, the devices can estimate how long someone is asleep and how often the person wakes up during the night.

Should the writer add this sentence?


Yes, because it provides commentary that helps explain why the details presented in sentence 6 are important to the point the writer is making in the paragraph.

Yes, because it provides commentary that helps explain why the details presented in sentence 6 are important to the point the writer is making in the paragraph.

Yes, because it indicates a shift from the discussion of the benefits of fitness trackers to a recognition that trackers are not perfect.

Yes, because it indicates a shift from the discussion of the benefits of fitness trackers to a recognition that trackers are not perfect.

Yes, because explains the specific effects that result from the cause presented in sentence 6.

Yes, because explains the specific effects that result from the cause presented in sentence 6.

No, because it introduces new evidence without explaining how that evidence affects the central argument.

No, because it introduces new evidence without explaining how that evidence affects the central argument.

No, because it presents evidence that contradicts the claim the writer made in sentence 6.

Answers

Yes, because it provides commentary that helps explain why the details presented in sentence 6 are important to the point the writer is making in the paragraph.

What is a primary goal in psychology and social services?

Answers

The goal of social psychology is to understand cognition and behavior as they naturally occur in a social context
Enhance human well-being and help meet basic and complex needs of all people, therefore understand the cognitive processes and behavior exhibited within a social environment.

Is it all right to use certain types of animals for research but not others For example, is it all right to use rats, but not dogs and cats Why or why not?

Answers

For scientists, the main thing is to research what they are researching and they choose the most relevant animal. Rat is small and they can fit more in one box to observate. They think founding a cure for humans is the main thing and they kill tons of rats and mouses because of it. Yes, I also think finding a cure is important, but they should find another way of researching, killing these tiny animals shouldn't be legal. They are alive too. Killing lives for saving lives? I don't think so.

Answer:

becouse the research mast be efective so to be that the chromosome mast be closer or near to human chromosome so becouse of chromosomal closeness we envestgat on special species only.

if we do to anmal that is not it is a wast of enrgy

Which country's flag features an eagle eating a snake?

Answers

Answer:

Mexican Flag

Explanation:

Hope the image below helps!

Choose the option that best matches the description given. One of many fieldwork positions in direct services is .

Answers

Answer:

One of many fieldwork positions in direct services is social workers.

Answer:

social workers

Explanation:

edg 2022

Why was the international trade model a logical option for Hong Kong and Singapore? Both were largely dependent on British investment.
Both had some of the lowest labor costs globally.
Both lacked natural resources and open land.
Both benefited from increased demand for electronics. Both were too small to support self-sufficiency.

Answers

The international trade model is the best option for Hong Kong and Singapore because they both have a low labor cost that allows them to hire many people for little money.

What is Hong Kong?

Hong Kong is an administrative region of the Republic of China, which is characterized by having an independent economic system from the rest of China. Hong Kong is important because it has a free market economy focused on the service sector.

A large part of the operations of financial services and telecommunications companies in Asia are carried out from there. In 2019 it was placed in the second position of the Index of Economic Freedom, only surpassed by Singapore.

What is Hong Kong related to Singapore?

Like Singapore, its economy has grown exponentially over the last decade, becoming one of the most important cities for the world economy due to the high incomes there.

A remarkable aspect of these two places is that the cost of labor is low, which is why companies prefer to establish their headquarters there in order to hire all the required employees without spending much.

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Mario has debt on two credit cards, a private student loan, a Federal student loan, and a car loan. His priority is to eliminate some of these debts entirely by the end of the year. Which payoff strategy -- debt snowball or high rate - - do you recommend? Why?

Answers

The payoff strategy that I recommend is debt snowball this is because one can pay down the smallest debt first and later pay as much as they can. not looking at the interest rate.

What is Debt Snowball?

The debt snowball method is known to be the way of paying off the smallest debts at first so as to get them out of one's way before paying for the bigger ones.

Note that this is a type of tackle the easy jobs first approach and it has an ascending order of payment. This will be better for Mario.

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All in a days work Q&A: Francesca Jackson was able to attend a special Health Career Exploration camp and volunteer in a hospital. How could experiences like Francesca’s, help other teens interested in a health career?

Answers

The experience Francesca had will help other teens interested in a health career in areas of telling them what it entails and teaching them what she learnt.

Who is a Volunteer?

This is defined as the act of freely giving time and labour for community service.

She was involved in Health Career Exploration camp and volunteer in a hospital which increased her level of exposure in the field and will be able to tell other tell and teach other teens about what's involved in the field.

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What two numbers multiply to 5 and add to 4

Answers

-1 and 5 are the two numbers

what kind of anime should i watch

Answers

Answer:

Same answer like other person but i would say that you can go look for some action and maybe fun anime movies that are good for your age! I reccomend HXH or Hunter X Hunter TRUST YOU WILL LIKE IT! Its also on netflix if you have netflix!

Explanation:

TRUST YOU WILL LIKE IT! Its also on netflix if you have netflix!

Describe ONE change in political organization necessary to facilitate
urban industrial development in a developing country
Your answer

Answers

Answer:

jgfccccjcfjcf

Explanation:

Which statement best describes how globalization is affecting the world?Globalization is growing less important as time passes.The world is becoming more globalized and connected.Globalization has resulted in fewer connections among countries.Countries are growing less likely to trade with one a

Which consumer protection policy helps protect consumers from having their
shopping habits sold to other companies?

Answers

Answer:

customer privacy

Explanation:

Which of the following best describes how the liberalism that emerged during the 1960s was different from earlier forms of the liberal political philosophy?

Answers

Answer: C. It empathized the government’s responsibility to protect its citizens against discrimination

Explanation: Just took the test

Answer:

It emphasized the government’s responsibility to protect its citizens against discrimination

Explanation:

Do aliens exist?
Where do birds go in the winter?
Why is the ocean blue?
Why is the sun the only star that can be seen during the daytime

Answers

Explanation:

i think aliens do exsist

different birds have different to winter like some hibernate and some migrate

Answer:

aliens do exist noble penguin is one

Explanation:

to get as many scholarships as possible you should?

Answers

Answer:

try your best with everything and do as much as you can

Explanation:

Which of the following explains what likely cause of death of so many bluegills in the lake

Answers

Answer:

Pollution could be the biggest problem; the water that the bluegills might have been in could have been so dirty/toxic due to pollution that some of the bluegills might not have been able to survive.

c) Explain how ONE piece of evidence from the period after 1750 would challenge the author's argument in the passage​

Answers

A piece of evidence from the period after 1750 that could challenge the author's argument in the passage is  the start of the French Revolution.

What is this evidence about?

The French Revolution was said to have began in 5 May 1789. There are a lot of reasons for the revolution.

Note that the piece of evidence from the period before 1750 that would support the author viewpoint  is that the West African and Swahili Coast Empires that is made up of the Timbuktu and Mali are said to be very  powerful, as well as been rich, and prosperous than what they were said to have believed.

Conclusively, The empires were also said to have been involved in  in Maritime and land trade with the other part of Eurasia.

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Why was general pershing critical of the French and the British

Answers

Answer:

they paired up in world war 1 but it would be because they were allied

Explanation:

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