X=ab4 and a~y2, b~1/y when y=2 and x=18and when y=1, x=-3 find the value of x when y=4?

Answers

Answer 1

The value of x when we solve the equation using substitution method is 15.375.

Let the value of a = k/y² and b = m/y

Then,

x = k/y² + m/y + 4

18 = k/4 + m/2 + 4

14 = k/4 + m/2

56 = k + 2m ---- (eq 1)

-3 = k + m + 4

-7 = k + m ---- (eq 2)

Subtracting equation 1 from equation 2

56 - (-7) = 2m - m

m = 63  

Substituting the value of m in equation 2

-7 = k + 63

k = -70

Putting the value of k in x = k/y² + m/y + 4

x = -70/16 + 63/4 + 4

x = 91/8 + 32/8

x = 123/8 = 15.375

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Related Questions

What are the factors that affect how much heat is absorbed by a body?

Answers

Heat energy is affected by mass, specific heat, and variations in body temperature.

Exothermic chemical reactions occur in numerous organs of the human body. Heat is produced as a byproduct of those chemical interactions, which the blood absorbs and redistributes around the organs. This spreads the heat evenly and guarantees that the entire body is at the same temperature.

The hypothalamus, a component of the brain, regulates internal body temperature. The hypothalamus compares the present temperature to the typical temperature of around 37°C. If the body's temperature falls too low, the hypothalamus ensures that heat is generated and maintained. Hypothermia is a medical emergency caused by the body losing heat faster than it can create heat, resulting in a dangerously low body temperature.

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How can you prevent food contamination of hot food?

Answers

Preventing food contamination of hot food can be done by maintaining proper temperature, sanitation, and hygiene.

To prevent food contamination of hot food, it is important to maintain proper temperature, sanitation, and hygiene. Hot food should be kept at a temperature of at least 140°F (60°C) to prevent bacterial growth. This can be achieved by using warming trays, chafing dishes, or heat lamps. It's also important to use clean and sanitized utensils and equipment when handling hot food. Additionally, good personal hygiene practices such as frequent hand washing and not handling food when sick are critical in preventing contamination. To avoid cross-contamination, raw meats should be kept separate from other foods and cooked thoroughly. Furthermore, It is also important to use clean and sanitized cutting boards and counters. Proper food storage and labeling should be maintained to prevent contamination and ensure that food is consumed before it goes bad.

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Cultural Diversity 15.7.21 1 2 of 21
A male health care professional is caring for a female patient from the Middle East. Out of respect for the patient's culture, the health care
worker knows:
A. to make sure a female colleague is available as an option for the patient to conduct the exam,
O B. to take off his/her shoes when entering the patient's room.
C. he/she must bow to the patient before leaving the room.
O D. not to smile or touch the patient.
O
OI
USO 10:

Answers

A is the correct answer. If there needs anything that the male doctor need to do that makes the patient uncomfortable, a female doctor would be there to do anything that would be more appropriately done by a doctor with the same gender.


I hope that made sense! Brainliest is appreciated!!

What are some guidelines for staying safe online?

Answers

Answer:

Avoid speaking to people above 18+ if you are a minor to prevent grooming and etc. Report any innapropiate behaviour viewed online. Make sure all of your news sites are up to date and spreading no misinformation.

Can premature deaths occur if the dimensions of health are undeveloped?

Answers

Yes, Premature death can occur if the dimensions of health are underdeveloped.

The aspects of health function independently of one another. Because the media's primary function is entertainment, it has minimal impact on our health. Premature mortality from NCDs result in lost productivity and have an economic impact. This is an issue that must be handled, and this index will represent the situation in individual nations.

Death that happens before the typical death age in a given demographic. The average death age in the United States is around 75 years. Cigarette smoking and secondhand tobacco smoke exposure are the major causes of early mortality in the United States. They have been linked to an increased risk of cancer, heart disease, stroke, lung illness, and a variety of other health issues.

This type of indicator was chosen to eliminate confounding between nations or over time owing to variations or changes in death rates for other competing causes, as well as to account for population age structure disparities.

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A cylindrical grain bin has a radius of 9 feet and a height of 30 feet. What is the surface area of the bin?

Answers

If you look it up, it will give you the approximate value of SA= 2205.4. I really don’t know if this is right because surface area is of a 3D object and area alone is for a 2D object. You may want to look up the proper formula.

Answer:

the answer is 2,204.28ft2 i got it right on my assignment.

Explanation:

What is the BMI of a healthy person?

Answers

The BMI of a healthy person lies in between 18.5 to 24.9.

A person's body mass index is computed using their weight and height. The BMI is calculated by dividing the body mass by the square of the body height and is given in kilograms per square metre (kg/m2).

The BMI can be calculated using a table or graphic that shows BMI as a function of mass and height, with contour lines or colors for different BMI categories, and that may use alternative units of measurement (converted to metric units for the calculation).

The BMI is commonly used to determine how far an individual's body weight deviates from what is typical for a person's height. The National Institutes of Health revised US standards in line with World Health Organization criteria in 1998, decreasing the normal/overweight cut-off from 27.8 (men) and 27.3 (women) BMI to 25. This had the consequence of redefining nearly 25 million formerly healthy Americans as overweight.

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What U. S. Entity established guidelines that require certain precautions be taken to prevent the transmission of disease through contact with body​ fluids?

Answers

Precautions are made by the Occupational Safety and Health Administration to avoid disease transmission through contact with bodily fluids.

The Centers for Disease Control (CDC) implemented universal precautions in 1985, mostly in response to a human immunodeficiency virus (HIV) epidemic. Universal precautions are a collection of recommendations designed to avoid the spread of bloodborne diseases through contact with blood as well as other potentially infectious materials (OPIM).

Semen, vaginal fluids, cerebrospinal fluid, synovium, pleural fluid, pericardial fluid, peritoneal fluid, amniotic fluid, saliva throughout dental procedures, any body fluid visibly contaminated with blood, and all body fluids in situations where distinguishing between body fluids is difficult or impossible.

Sputum, faces, sweat, vomit, tears, urine, and nasal secretions are not subject to universal precautions unless they are obviously contaminated with blood, because the transmission of Hepatitis B and HIV is extremely low and non-existent.

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Which is a sign that a person in the water is in distress?

Their body is vertical.
They are floating on their back.
They are swimming toward shore.
Their friends are splashing around them.

Answers

Their body is vertical

Explanation:

I believe it's if their body is vertical.

Answer:

verical

Explanation:

im smRT

What is the purpose of the Food Guide Pyramid ?

Answers

Answer: The Food Pyramid shows how much of what you eat overall should come from each shelf to achieve a healthy, balanced diet. The shape of the Food Pyramid shows the types of foods and drinks people need to eat most for healthy eating.

Explanation:

What does the right to pursuit of happiness mean?

Answers

The pursuit of happiness is a fundamental right mentioned in Declaration of Independence to freely pursue joy and live life in a way that makes you happy, as long as you don't do anything illegal or violate other's rights.

What is the meaning of right to pursue Happiness?

"Life, Liberty and the pursuit of Happiness" is a well-known phrase from the United States Declaration of Independence and the phrase gives three examples of the unalienable rights which the Declaration says have been given to all humans by their Creator, and governments are created to protect them.

Thomas Jefferson said that we have the right to the pursuit of happiness.

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Which of the following activities would a person most likely be performing when displaying this EEG pattern?
A. doing some light reading on a Saturday afternoon
B. napping at a hotel resort in the early evening
C. performing yoga in the middle of a garden
D. preparing a presentation for an important executive

Answers

For the given EEG pattern, the person is most likely to get engaged in preparing a presentation for an important executive, which means option D is the right answer.

EEG refers to Electroencephalogram, which shows the electrical signals obtained from the electrodes attached at the brain. Since the image shows that the intensity of electrical signals is high and their frequency (repetition of waves) is also high, this means that the person is involved in some important work which requires the use of brain in regular and continuous manner. During EEG test, some electrodes are inserted into the scalp of the head and then samples are taken for a particular stimulus given to the brain and the electrical activity is recorded in the electroencephalograph, which is the name of the device used. It helps in analysis of brain activity and any diseases related to brain.

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What are lifestyle diseases?

Answers

Answer: heart disease, stroke, diabetes, obesity, metabolic syndrome, chronic obstructive

Explanation: i will edit this if you need a specific answer

how might the breathing patterns change (respiratory areas)

Answers

Breathing patterns can change due to a variety of factors, including changes in the respiratory system, neurological conditions, and psychological states.

What are the steps of changing breathing pattern?

Some examples of changes in breathing patterns include:

Rapid breathing (tachypnea): This can occur due to conditions such as asthma, pneumonia, and heart failure.

Slow breathing (bradypnea): This can occur due to conditions such as hypothyroidism, brain injury, and certain medications.

Shallow breathing: This can occur due to conditions such as anxiety, pain, and lung disease.

Abnormal breathing patterns, such as ataxic breathing and Cheyne-Stokes breathing, can be caused by neurological conditions such as stroke and brain injury.

It is important to note that changes in breathing patterns can also be a symptom of an underlying medical condition and should be evaluated by a healthcare professional.

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Stretches done without bouncing are considered:

Answers

Answer:

Dynamic stretching

Explanation:

Dynamic stretching doesn't push muscles past their normal range of motion and there is no bouncing or jer-king involved.

What are the 5 lifestyle habits?

Answers

The five common lifestyle habits that impact health are diet and nutrition, exercise, sleep, smoking and alcohol consumption, and stress management.

There are many different lifestyle habits that can impact a person's health, but five common ones include:

Diet and nutrition: Eating a balanced and varied diet that includes plenty of fruits, vegetables, and whole grains can help maintain a healthy weight and reduce the risk of chronic diseases.Exercise: Regular physical activity can improve cardiovascular health, strengthen muscles and bones, and improve mental health.Sleep: Getting enough good-quality sleep is essential for physical and mental well-being.Smoking and alcohol consumption: Avoiding smoking and limiting alcohol consumption can reduce the risk of many chronic diseases.Stress management: Finding healthy ways to manage stress, such as through meditation, yoga, or exercise, can help improve overall well-being and reduce the risk of stress-related illnesses.

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How do physical activities help you in your daily life since we are still in the pandemic?

Answers

Answer:

The average person is fatbdwbqb

Explanation:

.

what does TCS food
mean?
O Time Control for Sanitizing
Temperature Control for Sanitiation
O Time/Temperature Control for Safety
O/TimeTemperature Control for Salmonella

Answers

Answer: TCS means Time/Temperature Control for Safety

Explanation:

Time/Temperature Control for Safety (TCS) is one guidance to prevent foodborne illness. There are many foods that easily become unsafe to consume. TCS use time and temperature as control units to limit the growth of hazardous bacteria.

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Anxiety disorders are a class of disorders marked by feelings of excessive apprehension or fear.
Please select the best answer from the choices provided

A) TRUE

B) FALSE

Answers

Answer:

True

Explanation:

Anxiety disorders are a class of disorders marked by feelings of excessive apprehension or fear is true.

What are symptoms of anxiety?Feeling nervous.Having a feeling of upcoming danger, panic or doom.Having an raised heart rate.Breathing fastly SweatingFeeling weak or tired.

Thus, the statement is true, Anxiety disorders are a class of messes marked by feelings of bloated apprehension or fear.

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What is the definition of behavior in fitness?

Answers

Behavior in fitness refers to actions or habits related to physical activity, exercise, and overall well-being.

These behaviors include things like regular exercise, healthy eating, maintaining a balanced lifestyle, and making positive choices that support overall health and fitness goals. These behaviors can be influenced by a variety of factors such as personal motivation, social support, and environmental factors. It's important to note that the behaviors are not only restricted to physical activity but also mental health, and overall well-being. Changing or adopting healthy behaviors can lead to positive outcomes such as improved cardiovascular health, better weight management, stronger bones and muscles, and reduced risk of chronic diseases. These behaviors can have a significant impact on an individual's overall physical and mental health. Therefore, having a good understanding of fitness behavior is important for promoting health and fitness among individuals.

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please help

Describe the data you found. Explain what you learned from your community’s or a nearby community’s Community Health Improvement Plan. Explain what you learned from the data you found on the state department of health’s webpage for health behaviors. Describe general trends and also give specific information and numbers. Refer to the notes you took for lesson 8.03.

Answers

A Community Health Improvement Plan is a document that outlines the specific health needs and goals of a community and identifies strategies and actions to address those needs.

What is the Community Health Improvement Plan?

It is typically developed through a community engagement process involving input from a diverse group of stakeholders, including community members, healthcare providers, and local government officials.

The data found on a state department of health's webpage for health behaviors typically includes information on various health indicators such as rates of chronic diseases, health behaviors such as smoking and physical activity, and access to healthcare. This data can be used to identify health disparities and inform the development of public health policies and programs.

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How painful is heat stroke?

Answers

Confusion, changed mental state, slurred speech, loss of consciousness (coma), and hot, dry skin or copious perspiration are all symptoms of heat stroke.

Heat stroke is induced by high outdoor temperatures and/or physical exertion. It usually occurs as a result of unavoidable prolonged exposure to extreme ambient or exertional heat. Specific medical illnesses, on the other hand, can increase the risk of heat stroke, and persons, particularly children, with specific genetic predispositions are vulnerable to heatstroke even under mild conditions.

Exertional heat stroke can occur in young people who do not have any health problems or drugs, most typically among athletes, outdoor labourers, or military personnel participating in strenuous hot-weather activity, or first responders wearing heavy personal protection equipment. It is vital to understand that humidity restricts the body's ability to cool itself through sweat and evaporation in both hot and humid circumstances. Excessive body temperature in humans and other warm-blooded species has been shown to disrupt enzymes that control biochemical pathways required for cellular respiration and organ function.

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Culinary (Creative foods) questions:

1.Raw or undercooked eggs, poultry, or meat can cause illness because they often carry ____?
A.Botulism
B.Salmonella Bacteria
C.Perfringens Poisoning
D.Staph Bacteria

2.An appetizer or Hors d'oeuvres can be described as "usually served as the first course in a meal?"
A.True
B.False

3.Rice cooked with the ________ method is when hot stock is slowly added a little at a time until the rice is tender.
A.Pilaf
B.Risotto
C.Absorption
D.Steaming

Answers

1. B, Salmonella Bacteria
2. False? (I don’t think they are considered part of the meals)
3. B, Risotto

I was wondering is ur hair part of you I will give brainlist whoever answers

Answers

Hello, yes my hair is a part of myself! :)
Yes your hair is part of you lol

What are the benefits of maintaining a healthy weight?

Answers

Maintaining a healthy weight has many benefits both physically and emotionally. Physically, it can reduce the risk of developing serious health conditions such as heart disease, stroke, type 2 diabetes, high blood pressure and some cancers.

Being at a healthy weight also improves general body strength and stamina which can lead to an improved ability to carry out physical tasks other than just daily activities like walking or going up stairs more easily. The emotional benefits are no less important. Feeling more confident about one’s appearance can lead to greater self-esteem and better overall mental health.

Studies suggest that people who maintain a healthy weight often have higher levels of energy, enthusiasm, motivation and enjoyment of everyday life. All these effects combine to give us an increased quality of life and better overall wellbeing.

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Why is it important to include flexibility in a workout exercise plan?

Answers

Flexibility development is a key objective of every training program. By enabling joints to freely move over their full range of motion (ROM), optimal flexibility helps avoid awkward and inefficient movement.

Define flexibility and provide instances.

Joints are able to maintain the range of motion needed for daily tasks and physical activity with the aid of exercises that promote flexibility. Stretching, yoga, and tai chi are a few examples of flexibility exercises.

Why is adaptability a virtue?

Every training program should have flexibility development as a primary goal. By allowing joints to move smoothly across their complete range of motion, optimal flexibility helps reduce uncomfortable and inefficient movement and may also increase resistance to muscle injury (3, 22, 23, 24, 32, 36).

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What do you call to the adaptations of exercise in the heat and allow the body to better cope with heat stress?

Answers

Acclimatization refers to the advantageous physiological changes that emerge as a result of frequent exposure to a hot environment. Increased sweating efficiency, earlier beginning of sweating, increased sweat output, and decreased electrolyte loss in sweat are examples of these physiological adaptations.

Heat acclimatisation is an increase in heat tolerance caused by progressively increasing the intensity or length of work done in a hot environment. The easiest strategy to acclimatise to heat is to progressively increase the effort done in a hot atmosphere over a duration of 1-2 weeks.

Increased perspiration, improved skin blood flow, lower body temperatures, less cardiovascular strain, better fluid balance, changed metabolism, and greater cellular protection are among the changes. Acclimation is the synchronized phenotypic response of an animal to a single stressor in the environment, whereas acclimatisation is the coordinated response to several distinct stressors at the same time (e.g., temperature, humidity, and photoperiod).

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What characteristics of the face and body show good health?What characteristics show bad health?

Answers

Answer:Drooping eyelids

Explanation:

Doctors call it ptosis or blepharoptosis. It can happen in one or both eyes -- in severe cases, your eyelid may block your vision. You may be born with it or get it over decades. It’s often harmless, but it can be a sign of problems with your brain, nerves, or eye socket. See your doctor if it happens in days or hours, or if you have double vision, weak muscles, trouble swallowing, or a bad headache -- those can be signs of a stroke.

The finding that syphilis causes general paresis is important because it supports the idea that:
a. dysfunction
b. problems in living
c. organic factors can cause mental illness
d. practitioner

Answers

The finding that syphilis causes general paresis is important because it supports the idea that: organic factors can cause mental illness.

General paresis is a form of neurosyphilis. It usually occurs in people who have not been treated for syphilis in years. Syphilis is a bacterial infection most commonly transmitted through sexual or non-sexual contact. Today, neurosyphilis is extremely rare.

People who have had syphilis for a long time have serious health problems. Late-stage syphilis can cause tumors, blindness, and paralysis. It damages the nervous system, brain, other organs, and can even lead to death. In the early stages, syphilis can be cured with antibiotics.

Neurosyphilis is a disease of the brain membranes, the brain itself, or the spinal cord. It can occur in people with syphilis, especially if left untreated.

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Suppose a friend is always tired because she stays up late watching television. Which factor is having a negative influence on her health?

Answers

Answer:

lack of sleep

Explanation:

she is not getting enough sleep which should be to 6-8 hours in order to fulfill you needs

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