Answer:
Solution
=2±√3
Explanation:
The solution of the given equation x² - 4x + 1 = 0 is;
x = 2 ± √3
We are given;
x² - 4x + 1 = 0
Using quadratic formula we have;
x = [-b ± √b² - 4ac]/2a
where;
a = 1
b = -4
c = 1
Thus;
x = [-(-4) ± √((-4)² - 4(1 * 1)]/2(1)
x = (4 ± √(16 - 4))/2
x = (4 ± √12)/2
x = (4 ± 2√3)/2
x = 2 ± √3
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The graph of ______________________ is called hyperbola.
Answer:
the mix of two parabolas is called graph of hyperbola
Using the equations 2 sr(s) + o₂ (g) → 2 sro (s) ∆h° = -1184 kj/mol co₂ (g) → c (s) + o₂ (g) ∆h° = 394 kj/mol determine the molar enthalpy (in kj/mol) for the reaction c(s) + 2 sro(s) → co₂ (g) + 2 sr(s).
Considering the Hess's Law, the enthalpy change for the reaction is 790 kJ/mol.
Hess's Law indicates that the enthalpy change in a chemical reaction is the sum of the ∆H of each stage of the reaction will give us a value equal to the ∆H of the reaction when it occurs in a single stage.
In this case you want to calculate the enthalpy change of:
C(s) + 2 SrO(s) → CO₂ (g) + 2 Sr(s)
You know the following reactions, with their corresponding enthalpies:
Equation 1: 2 Sr (s) + O₂ (g) → 2 SrO (s) ∆H° = -1184 kJ/mol
Equation 2: CO₂ (g) → C (s) + O₂ (g) ∆H° = 394 kJ/mol
First stepIn this case, first, to obtain the enthalpy of the desired chemical reaction you need 1 mole of C (s) on reactant side and it is present in second equation. But since this equation has 1 mole of C (s) on the product side, it is necessary to locate this on the reactant side (invert the reaction). And when an equation is inverted, the sign of ΔH also changes.
Second stepNow, 2 moles of SrO (s) must be a reactant and is present in the first equation. Since this equation has 2 moles of Sr0 (s) on the product side, it is necessary to locate the O on the reactant side (invert the reaction) and the sign of ΔH changes.
SummaryIn summary, you know that two equations with their corresponding enthalpies are:
Equation 1: 2 SrO (s) → 2 Sr (s) + O₂ (g) ∆H° = 1184 kJ/mol
Equation 2: C (s) + O₂ (g) → CO₂ (g) ∆H° = -394 kJ/mol
Adding or canceling the reactants and products as appropriate, and adding the enthalpies algebraically, you obtain:
C(s) + 2 SrO(s) → CO₂ (g) + 2 Sr(s) ΔH= 790 kJ/mol
Finally, the enthalpy change for the reaction is 790 kJ/mol.
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The following is a chemical reaction for _______ with ozone. Reaction 1: C l O B r O right-arrow C l B r O 2. Reaction 2: C l O 3 right-arrow C l O O 2. Reaction 3: B r O 3 right-arrow B r O O 2. A. Chlorofluorocarbons b. Halons c. UV radiation d. None of the above.
Answer:
B
Explanation:
The ozone is being broken up in the second and third, which indicates halons. Halons destroy ozone and extinguish fires.
Answer:
B
Explanation:
Which is NOT an aspect of individual sports? A. Must recover quickly from mistakes B. Deeper skill set for the game C. Better cardiorespiratory fitness than team sports D. Good cooperation with others.
Answer:Option D on edge just took the quiz
Explanation:
Answer:
D, good cooperation with others
Explanation:
Have the day you deserve :)
Having the ability to read and interpret a variety of visual text is known as.
Answer:
Having the ability to read and interpret a variety of visual text is known as visual literacy.
Hope this helps! :)
Pick one of the body parts shown in Sammi's model. How would a disease or injury to this organ affect the process modeled? How would it affect the body as a whole?.
Answer:
The heart, the heart is what makes every moving part working inside our body even though the brain is the one who tells them or gives them signals to work. the heart is what keeps them alive and if the heart takes any kind of negative damage the would not take care of everything it's supposed to. If the heart starts to fail it will effect the blood suply to all your body parts and blood is what carries the oxygen throughout your body and without getting the proper blood or oxygen supply to those certain body parts will have an effect like you couldn't keep warm or cool off, fight infections, or get rid of our own waste products. Without enough blood, we'd weaken and die.
Explanation: That's my answer
The body part that can be picked in the given model is heart. Any injury can affect the bloop supply throughout the body.
What is circulatory system?Blood vessels in the circulatory system transport blood away from and towards the heart. Arteries transport blood away from the heart, while veins transport blood back to the heart.
The heart in the body is analogous to a car's engine in that it pumps oxygen carrying blood cells into all organs, and without these oxygen carrying blood cells, the entire body will stop functioning.
An injury or disease to the heart will have a negative impact on the rate of blood distribution to all parts of the body, which will have a negative impact on the overall wellbeing of the body and will also have a negative impact on the process being modeled.
Thus, the heart is the body part shown here.
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A city's population is represented by the function P=25,000(1. 0095)t , where t is time in years. How could the function be rewritten to identify the daily growth rate of the population? What is the approximate daily growth rate? Drag and drop the choices into the boxes to correctly complete the table. If a value does not match, do not drag it to the table. Function Daily growth rate.
Answer:
The yearly growth rate is 0.95%. For the daily growth rate, change t, to t/365/
Explanation:
Jacob wants to be a steamfitter. He just finished his associate’s degree. Which best describes what he should do next?.
Answer:
I did this so the answer is A. Get a bachelor's degree.
Explanation:
Jacob has likely developed strong study skill while pursuing his associate degree. Earning his Bachelor’s degree may help him prepare to pursue his career path and achieve sustainable employment opportunities. Earning a higher education degree continues to be a popular option than the option of doing an apprenticeship.
Answer:
a
Explanation:
the guy above was right
You have a friend who lost 15 pounds of fat while on a diet. Where did the fat/mass go?.
Brea and colin do business as dig excavators. In acting on the firm’s behalf, brea makes an honest error in underestimating the cost of a certain project. In this situation, to her firm, brea is liable for a breach of the duty of.
People often breach duty as a result of some factors. In this situation, to her firm, Brea is liable for one of the choices of breach of the duty.
There are times, the court will say that a breach of duty of care is due to the existence of certain factors. When an individual is injured, the defendant is said to have breached the duty of care.
Breach of duty often takes place when an individual's conduct fails to meet an applicable standard of care.
As the error was due to a honest mistake, she will be ask to make appropriate corrections.
See full question below
Brea and Colin do business as Dig Excavators. In acting on the firm's behalf, Brea makes an honest error in underestimating the cost of a certain project. In this situation, to her firm, Brea is liable for a breach of the duty of
Loyalty.
accounting
care.
none of the choices.
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Is 5/16 bigger than 1/2.
Answer: No
Explanation:
1/2|
8/16
So
8/16 is a larger than 5/16
Which letter shows the type of wave that can be seen by humans.
Maria, a u. S. Psychologist uses the dsm-5 in her practice, but her cousin, ava, lives in spain and often uses the ________ for clinical diagnosis.
Answer:
B. International Classification of Diseases
Explanation:
Which equation is equivalent to StartRoot x EndRoot 11 = 15? x 11 = 225 x 121 = 225 StartRoot x EndRoot = 15 11 StartRoot x EndRoot = 15 minus 11.
Answer:
Answer is shown in the image! (D)
Explanation:
Emily, an 11-year-old girl, wants to sign-up for a fashion newsletter and sweepstakes. In order to do so, the website wants to know emily's name, address, phone number, and email address. Which of the following is correct?.
Answer:
Emily must have permission from her parents in order to furnish the information to the website.
Explanation:
She's underaged
Which of the following is not a traditional food found in Uruguay?.
Answer:
Gnocchi is not a traditional food found in Uruguay.
Explanation:
Have you ever written a bio data or an application letter.
Los verbos recíprocos solamente funcionan cuando hay por lo menos _____ personas que hacen la cosa a la otra.
Answer:
2
Explanation:
Answer: 2
Explanation:
just took test
Find the measure of a negative angle coterminal with 95°.
The measure of a negative angle coterminal with 95° are for any integer n 95° – (1,080n)°. Thus, option (b) is correct.
What is coterminal?Angles in common position (angles with the starting side on the positive x-axis) that have a shared terminal side are referred to as coterminal angles. It's as easy as subtracting or adding 360° or 2 to each inclination, depending on whether it's measured in degrees or trigonometric functions. There are an endless amount of coterminal angles to be discovered.
The measure of a negative angle coterminal with 95°
Ф + 360 n
n is any integer (negative or positive)
Ф = 95°,
- 3n is an integer,
The co-terminal angles of 95° are,
= 95° + 360° (-3n)
= 95° - (1080 n)° ; for any integer n.
As a result, the measure of a negative angle coterminal with 95° are for any integer n 95° – (1,080n)°. Therefore, option (b) is correct.
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Your question is incomplete, but most probably the full question was.
for any integer n 95° – (1,450n)°, for any integer n 95° – (1,080n)°, for any integer n 95° – (780n)°, for any integer n 95° – (340n)°,Which of the following best describes metal prices?.
Hard substances that conduct heat and electricity and have a characteristic lustre or shine
Which method of choosing teams would be most hurtful to lower skilled players? A. Having team captains pick one player at a time B. Having people count off C. Having people team up according to birthdays D. Having people draw numbers.
Answer:
The answer has to be A
Explanation:
Cause that has to down grade one's skill
Answer:
Which method of choosing teams would be most hurtful to lower skilled players?
A. Having team captains pick one player at a time <<<------ CorrectB. Having people count off
C. Having people team up according to birthdays
D. Having people draw numbers.
Explanation:
Edge 2022 100% on unit test
What is the combined length of all the buttons longer.
Answer:
4 leght the button is 3 length
Explanation:
if you don't understand here's my link
https//com. ph
Read this sentence from an informative essay. After the Civil War, the amount of counterfeit money in circulation was a big problem for the government. The sources for this fact are an article entitled "Know Your Money" from the US Secret Service website and an encyclopedia article entitled "United States Secret Service" by Michael Ray. How should the sources be listed in a parenthetical citation? (Know Your Money; Ray) (US Secret Service; Michael Ray) (Know Your Money; United States Secret Service) ("Know Your Money," US Secret Service; Michael Ray, "United States Secret Service").
Answer:(know your money ray )
Explanation:
I just took the test on edg good luck
The sources should be listed in a parenthetical citation as: A. (Know Your Money; Ray).
What is a parenthetical citation?A parenthetical citation can be defined as a type of citation that is used as a reference of the original sources used in a literary work, so as to immediately inform readers where the data were obtained from.
In this scenario, we can infer and logically deduce that the sources should be listed in a parenthetical citation as (Know Your Money; Ray).
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Alicia refused to take that job so that she had more time on her studies.
In order for Alicia to prepare for the meeting with her boss, it's important that she should plan to discuss the ways attending college is helping her to be better at her job.
From the complete information, Alicia is going to college and working. Her employer wants to give her more roles. An effective way to communicate with her employer is to prepare a list of suggestions on how her workload might be reassigned.
She can also sign a contract to stay with the company for a period of time in order to show her commitment and thereby reach a mutually agreeable resolution.
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Which list includes only bulk properties of matter.
The list which includes only bulk properties of matter is: C. boiling point, surface tension, vapor pressure.
What is matter?
Matter can be defined as anything that has mass and occupies space.
Hence, all the physical objects or substances that are found on planet Earth are typically composed of matter.
The three (3) states of matter:
Since all matter are made up of atoms, they have a property of existing in three (3) distinct states and these are;
GasSolidLiquidA bulk property of matter refers to the property that affects matter as a whole and they are listed as follows:
1. Boiling point
2. Elasticity
3. Strain
4. Stress
5. Surface tension
6. Vapor pressure
In conclusion, boiling point, vapor pressure and surface tension are considered as a bulk property of matter.
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Your question is lacking the necessary answer options, so I will be adding them here:
A. boiling point, strength of electrical forces, vapor pressure.
B. kinetic energy, strength of electrical forces, vapor pressure.
C. boiling point, surface tension, vapor pressure.
D. boiling point, kinetic energy, surface tension.
Your 15-year-old brother comes home with the great news that he has decided to buy his first car and has just agreed to give $10,000 to someone on craig's list. He signed the contract and just needs to pay the seller and pick up the car. Your dad is upset and calls the seller to tell him your brother will not be buying the car. What can the seller do?.
Parallel lines cut by a transversal coloring activity.
Answer:
this is the answer
Explanation:
hope it will help you
Global competition accelerated product development by competitors.
Answer:
its b
Explanation:
Once you identify a potential conflict of interest which questions should you ask yourself next.
Once you have identified a potential conflict of interest, the question you should ask yourself next is: Have I disclosed the matter to the appropriate parties?
A conflict of interest can be defined as a situation in which the aims, objectives, and concerns of two (2) or more parties do not align or are completely incompatible. Thus, a conflict of interest leads to an unreliable and compromised decision-making process.
The first step in the conflict of interest is identifying the purpose of the conflict and the last step is the management of this conflict by an appropriate party or authority.
Hence, after the identification of potential conflict of interest, the question you should ask yourself next is; have I disclosed the matter to the appropriate parties?
In conclusion, a potential conflict of interest should be disclosed to the appropriate parties as soon as it is identified.
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Answer:
Are threats to compliance with the code at an acceptable level?
Explanation:
According to AICPA Professional Code of Conduct: "When an actual conflict of interest has been identified, the member should evaluate the significance of the threat created by the conflict of interest to determine if the threat is at an acceptable level."