if sin a=-4/5 find cos a​

Answers

Answer 1

Answer:

sin a=-4/5

we have sina=perpendicularp/hypotenuseh=-4/5

let p=-4k

h=5k

by Pythagoras theorem

h²=p²+b²

(5k)²=(-4k)²+b²

25k²-16k²=b²

(3k)²=b²

b=√(3k)²=3k

now

cos a =b/h=3k/5k=3/5


Related Questions

Which activity is an unhealthy way of easing the emotional pain of depression?

Answers

It depends on what activity’s there are to choose from. If from any activities, I would say purposely hurting yourself. It just hurts you emotionally even more and hurts you physically too.
Drugs and alcohol abuse is an healthy way to deal with depression and emotion

Which of these is a risk of speeding.?
A. Tire damage
B. Mechanic failure
C. Less time to react to other drivers’ behavior

Answers

Answer:

C probably

Explanation:

If your speeding there is an increased stopping distance after the driver perceives a danger; and greater potential for loss of vehicle control

Answer: C

Explanation: I’ve taken the test.

Why would it be important for a leader to be open-minded

Answers

Answer:

Being open-minded allows leaders to see things from a different perspective or how things can be applied in new and novel ways.

Eating habits may be influenced by schedule, peers, and weight concerns true or false?

Adults who commute to work often eat at home true or false?

Answers

Answer:

1. True 2. False

Explanation:

1. Your eating habits can be influenced by many things like the reasons shown. If you have weight concerns, that can make you not eat enough or eat too much. If you have a hectic schedule, that can effect the way you eat.

2. I think it's false because a lot of people usually run late to work so they end up not eating at home.

1. True 2. False
I had these questions on my test

Which fitness test tests your heart and lungs

A. Curl-ups
B. Sit and Reach
C. Walk/Run test
D. Push-ups

Answers

Answer:

walk and run test

Explanation:

helps condition your heart so your heart doesn't beat as much when your doing something easy like walking

Hai!

This would be C. Walk/Run Test.

Why?

When you Run & Walk this gets your heart rate up. You also have to breathe more then your are Running/Walking.

Hope I helped! :3

1
Which of the following is an example of physical misconduct?
A. Making an athlete run two extra laps for being late to practice
B. Denying an athlete a water break as punishment
C. Sending an injured athlete back onto the field to play
D. Band C
E. All of the above

Answers

The correct answer is all of the above. They are all examples of physical misconduct.

how do nicotine and tobacco cause cancer?​

Answers

Answer:

Tobacco smoke has at least 70 chemicals that cause cancer, also known as carcinogens. Every time you breathe in that smoke, those chemicals get into your bloodstream, which carries the chemicals to all parts of your body. Many of these chemicals can damage your DNA, which controls how your body makes new cells and directs each kind of cell to do what it is made for. Damaged DNA can make cells grow differently from how they are supposed to. These unusual cells can turn into cancer.

Explanation:

brainliest please

affects the brain with shuts your body down.

Although Laura is working in a group with others, her tendency to engage in social loafing will likely decrease if __________. A. individual productivity of group members is not evaluated by others B. the group encourages task involvement C. the group is large and incohesive D. Laura has low achievement motivatio

Answers

Answer:

The answer is B

Explanation:

Laura's tendency to engage in social loafing will likely decrease if the group encourages task involvement (Option B).

What is social loafing?

The expression 'social loafing' makes reference to a psychological process that occurs when persons work less in a group environment.

This attitude (social loafing) may lead to a significant decrement in productivity.

In conclusion, Laura's tendency to engage in social loafing will likely decrease if the group encourages task involvement (Option B).

Learn more about social loafing here:

https://brainly.com/question/13044384

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What best describes the act of advocacy?

A. Supporting a meaningful action or cause
B. Calling attention to a particular product and Service
C. Reducing internal and external risks
D. Practicing health-enhancing behavior​

Answers

D - you are supporting yourself, I enhancing your behavior
I think the answer is B if you advocate for something you really believe in it and want to help spread the word

The typical dodgeball court measures:
50 ft x 100ft
0 0 0
30 ft x 60 ft
20 ft x 40 Ft
25 ft x 50 ft

Answers

Answer: 30ft by 60ft

Explanation:

A dodgeball team is made up of six players and then there can.bd about four substitutes.

The typical dodgeball court has a width of 30 feet from one sideline to another and also has a length of 60 feet from one endline to another endline.

Therefore, the correct is option B.

Select the phrase that correctly completes the statement.
An adult woman who has a (an)
v of 27

Answers

No :) 27 I could have a little bit of the green beans and I don’t think I can get it to you tomorrow and I don’t know what I can do for you

Nine-month-old Susan has a fear of sound and a fear of heights. In which domain do these
characteristics belong?

Answers

Answer:

maybe put her down...

Explanation:

end her mysery...

6.
b) cell-tissue-organs-organ systems-organism
What is the correct order of organization
a) tissues-cells-organs-organ systems-
organism
c) organism-cells-tissues-organ systems-
organism
d) tissues-cells-organs-organ sytems-
organism

Answers

Answer:

Cells -> tissues -> organs -> organ systems -> organisms

The correct order of organization is cell-tissue-organs-organ systems-organism.

In biological organization, cells are the basic structural and functional units of life. Cells combine to form tissues, which are groups of similar cells working together to perform specific functions. Tissues then come together to form organs, which are structures made up of different types of tissues performing specialized functions. Organs further integrate and interact to create organ systems, which are groups of organs working together to carry out specific physiological functions. Lastly, all the organ systems combine to form a complete organism, such as a human or an animal. Therefore, the correct order is cell-tissue-organs-organ systems-organism.

learn more about organs here:

https://brainly.com/question/12825206

#SPJ11

do drug addicts need help or punishment? why?​

Answers

Most drug addicts need help, because they have gone trough something that has made them feel that doing drugs is going to make there problems go away. So they should be helped not punished.

Your appetite is learned and shaped by factors in your environment and by your emotions.

True or False?
True
False

Answers

True!

When some people have an environment that makes them upset it is actually very common for them to not want to eat whereas they are not feeling happy. Also I know this is true because the term (stress eating) rises from this, meaning that somebody could literally become hungry just because they are stressed out. It is sadly a very common problem too because it is bad for health and nutrition to just skip out on a meal, of which this same process confuses the bodily system, possibly even resulting in either more stress or even anger.

Hope this helps.

    。 .  .   。  ඞ ඞ ඞ ඞ ඞ ඞ ඞ 。  . • . [Northstar] was ejected. . .   。 .     。      ゚   .     . ,    .  .   ..  。    •   ゚  。   .   .      .     。。    •   ゚  。   .   .      .     。。    •   ゚  。   .   .      .     。。    •   ゚  。   .   .      .     。

the answer is true!!!

physical activity influences the calories in" side of the energy balance equation true or false

People can look for appropriate ways to deal with their emotions while following a nutritious diet true or false?

Answers

Answer:

False

True

Explanation:

The energy balance equation is defined as the equation that involves energy consumed and energy expended. Physical activity highly influence the calories "out" or energy expending and do not influence  the calories "in" . Physical activity burn more calories and if person is having less food or energy "in", it leads to weight loss.

It is true that, nutritious diet can help to deal with emotions. It is recently proven that good food makes good mood, which means a healthy diet keeps a person mentally healthy and strong.

Hence, the correct answer is:

"False

True"

What are 3 major Health Components

Answers

Answer:

Physical, Social, and Mental Health.

Prompt
The unit has several recommendations for organizing and storing food. How could you apply one of these to your family? Or
give examples of how your family organizes your kitchen that works well.
Write at least 80 words please

Answers

Answer:

label cabnits

Explanation:

first first we start by separating everything canned goods we can good separate them down to veggies can meat fruit and stack them neatly on the shelf the label the outside the cabinet then we move on to the cups place balls together put them in one stock all the place together all the bowls together all the cups together label the cabinet then we go over to the upper cabinets and we do all of our bag drives bag beans anything that say if a mouse cut in could get into it we put in the forecast and label them

Answer: bro on top right

Explanation:

:)

Hydra reproduce by ____.

A. budding
B. fission
C. regeneration
D. sexual reproduction

Answers

A, hydra is reproduced by budding
I think budding is the answer

This isn't a normal school question, but could be considered health. I walked 2 miles to school just a few minutes ago and on the way here my chest cramped and my heart starting hurting and still is, what is wrong and what do I do?​

Answers

Answer:I think that’s heart burn

Explanation: you should be perfectly fine in a couple of minutes, as to why it’s happening I’m not entirely sure.

Describe the kinds of peer pressure likely to most strongly influence your decisions about substance abuse

Answers

unspoken peer pressure because teens who are friends with the wrong crowd tend to make the same decisions as they do because they think it’s the right thing to do or they want validation from them
Direct peer pressure is likely to strongly influence your decision in substance abuse because you have to make an on the spot decision

Explain how the respiratory system and the circulatory system work together to keep the body alive and well. Must be at least 3 sentences.

Answers

Answer:

The human respiratory and circulatory systems work together to supply the body with oxygen and get rid of waste carbon dioxide. While the former deals with air and the latter with blood, they work together seamlessly by coordinating the functions of the many parts of each system. Other systems in the body, such as the digestive system and the nervous system, are important too, but the circulatory and respiratory systems have to work continuously, usually without pausing even for a few minutes.

Explanation:

an active lifestyle can lead to an energy excess and unwanted weight gain true or false

Answers

Answer:

False

Explanation:

Active life style would mean they are exercising and being healthy. Exercise would in fact cause you to use up more of your energy instead of gaining more, and you would also lose more weight.  

The lifestyle describe may describe a sedentary life style, but for sure not active.

false.

It actually does the opposite!



One of the differences between labeling an individual with a medical disease or labeling them with a mental illness is that
A. many mental illnesses are used to define an individual
B. many medical diseases are seen as patient caused
C. there are no known cures for mental illnesses
D. there are more cures for medical diseases
Please select the best answer from the choices provided

Answers

Answer:

I think c because there aren't any cures for mental illnesses, but diseases there are

Explanation:

The differences between labeling an individual with a medical disease should be that various mental illness should be used for defining an individual.

What is mental illness?

The mental illness should refer to the health condition that include the changes in emotion, thinking or the behavior, It should be associated with the distress or the problem where it should be functioned in the social work or even the family activities.

Therefore, based on the above explanation, we can say that the first option is correct.

learn more about illness here: https://brainly.com/question/13371930

Individuals with hypertension should moderate their intake of which of the following?

Answers

Salt/sodium should be moderated

______ are even smaller then bacteria​

Answers

Answer:

Virus

Explanation:

Viruses are even smaller than bacteria and require living hosts — such as people, plants or animals — to multiply. Otherwise, they can't survive. When a virus enters your body, it invades some of your cells and takes over the cell machinery, redirecting it to produce the virus.

Answer:

Virus

Explanation:

Viruses are even smaller than bacteria

Sexual reproduction happens when the __ material from two different sex cells combine.

A. offspring
B. Mutations
C. Genetic

Answers

B .offspring (the product of the reproductive processes of an animal or plant : young, progeny The disease can be transmitted from parent to offspring. b : child a mother of numerous offspring.)

Your weight should be on the heels of your feet.
A. true
B. false

Answers

Answer/Explanation: true

Answer:

A. true

Explanation:

Yes, our weight should be on the heels and the toes of your feet.

How long should a typical warm-up last
05 to 7 minutes
05 to 15 minutes
10 to 25 minutes
15 to 45 minutes

Answers

I think 10-25 but I m not sure

Answer:

10-25 minutes

Explanation:

I think this is a healthy amount of time to get all the exercise you need in, it may also depend on the types of exersices you are doing. Some exersices you may want to take more time on because they are more effective than others.


4. Which of the following is a temporary feeding assistant NOT
permitted to do?
cation fo
skforce
O a. Take a resident to the dining room
ection Pre
O b. Give a resident a tube feeding
O c. Cut up meat for a resident
wality Imp!
O
d. Serve a meal

Answers

B) give a resident a tube feeding
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