An electrical firm manufactures light bulbs that have a length of life that is approximately normally distributed with mean equal to 800 hours and a standard deviations of 40 hours. Find the probability that, a random sample of 16 bulbs will have an average life of i). Less that 775 hours. Ii) between 775 and 825 hours.

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Answer 1

Answer:

ion know

Explanation:


Related Questions

So just don't get overwhelmed and you'll make it out.

Answers

the answer you have stated is in fact correct, “you will make it out sometimes”

Between ant and grasshopper which would you choose to be why.

Answers

Answer:

ant

Explanation:

way more interesting, can carry objects way heavier than them and if they were to become human size they would pretty much rule the earth whereas a grasshopper is annoyinggggfg and if they were the size of humans we'd probably die of blood loss in the ears.

When it comes to the choice between an ant and a grasshopper, my choice would be an ant because:

Ants are really strong. Ants are farmers. Ants are very resilient as a species.

Ants are known to be really strong such that they can carry things that are 50 times their body weight which allows them to carry a lot of food to their colonies.

Ants are also farmers in that they have been known to protect some other insects so that they can keep getting agricultural produce like honeydew.

Ants are also quite resilient in that they have been around for as long as dinosaurs which means they are some of the oldest species in the world.

In conclusion, ants are preferably to grasshoppers in my opinion.

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The heat required to change 1 gram of a solid at its normal melting point.

Answers

By definition, the heat required to change 1 gram of a solid at its normal melting point is called heat of fusion.

Latent heat is defined as the energy required by a quantity of substance to change state.

When this change consists of changing from a solid to a liquid phase, it is called heat of fusion and when the change occurs from a liquid to a gaseous state, it is called heat of vaporization.

Fusion is the process by which a solid becomes a liquid phase. In this case, the temperature remains constant throughout the time that the solid turns into a liquid.

This occurs because in the solid phase the molecules are held together forming a rigid crystalline structure, in such a way that the substance has a defined shape and volume. As heat is supplied, the energies of the solid's particles gradually increase. After a certain time, this energy becomes so great that some of the particles exceed the force that kept them in their fixed positions.

In this way, the greatest separation between the particles is associated with the liquid phase.

Thus, the energy absorbed by the substance is used to separate the molecules more than in the solid phase, so that the temperature does not increase during the change of state.

In summary, it is called "heat of fusion", the energy required to change 1 gram of substance from a solid state to a liquid state, without changing its temperature.

In others words, the heat required to change 1 gram of a solid at its normal melting point is called heat of fusion.

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Which is the correct translation of the sentence into an equation? four less than a number is 12.

Answers

Answer: 4 - ? = 12

Explanation: maybe

What is the sum of the polynomials (8x2-9y2-4x)+(x2-3y2-7x).

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The answer to your question is: D.) 9x²-11x-12y²

answer:

9x-2-12y-2-11x

explanation:

Remove the parentheses: 8x-2-9y-2-4x-+x-2-3y-2-7x

Combine like terms: 9x-2-12y-2-11x

Answer: 9x-2-12y-2-11x

Imagine that you are a writer for a leading newspaper company in the philippines brainly.

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If I was a writer, the implementation of a 24-hour curfew for minors in time of pandemic is vital in order to keep them safe.

This is an incomplete question. The question is about the implementation of a 24-hour curfew for minors in time of pandemic. A pandemic is an epidemic of an infectious disease which has spread over large regions and has affected several individuals.

During a pandemic, there's an outbreak of diseases that can be transmitted from person-to-person contact. Therefore, it's important for people to be safe.

To address this issue, there should be an implementation of a 24-hour curfew for minors in the time of pandemics. This is vital to keep them safe.

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Pain does all of the following things except.

Answers

Answer:

A. indicate potential danger in environment

Explanation:

Have you ever visited a railway station.

Answers

Answer:

Yeah, so.....

Explanation:

A retailer is able to track which products draw the most attention from its customers through the use of 5g-enabled motion sensors placed around the store. With this knowledge, the retailer can supply the proper amount of products to meet customer demand.

Answers

There is a wide spread of 5g technology. The technology that combines with  5G capabilities and used in the monitoring of the shopping trends is the Internet of Things.

The Internet of things is known to explain real or physical objects that are found along with sensors, processing ability, software, and other technologies.

They act by connecting and exchanging data with other devices and systems through the Internet or other communications networks.

The examples of Internet of Things are:

Connected appliances. Smart home security systems.  Wearable health monitors etc.

See full question below

A retailer is able to track which products draw the most attention from its customers through the use of 5G-enabled motion sensors placed around the store. With this knowledge, the retailer can supply the proper amount of products to meet customer demand.

Which technology combines with 5G capabilities to allow the monitoring of shopping trends in this way?

platooning

network slicing

internet of things

beamforming

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How many differences can you spot candy house.

Answers

Answer:

There no image to reference lol. Can't help you

Explanation:

Solve for x. 9(x + 1) = 25 + x x = 2 x = 3 x = 4 x = 5.

Answers

Answer:

[tex]\boxed{\boxed{\sf x=2}}[/tex]

Explanation:

[tex]\sf 9(x + 1) = 25 + x[/tex]

*Apply Distributive property*

[tex]\leadsto\sf 9x+9=25+x[/tex]

Subtract 9 from both sides:

[tex]\leadsto\sf 9x+9-9=25+x-9[/tex]

[tex]\leadsto\sf 9x=x+16[/tex]

Subtract x from both sides:

[tex]\leadsto\sf 9x-x=x+16-x[/tex]

[tex]\leadsto\sf 8x=16[/tex]

Divide both sides by 8:

[tex]\leadsto\sf \cfrac{8x}{8}=\cfrac{16}{8}[/tex]

[tex]\leadsto\sf x=2[/tex]

_________________________________________

What is the remainder when f(x) = 2x4 + x3 − 8x − 1 is divided by x − 2?.

Answers

The correct answer is 23

I hope this helps and I hope you have an amazing day! :)

Which of the following is not a voluntary activity.

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You didn’t write the following…

A family has two cats named gordo and flaco. Gordo weighs 15 pounds and flaco weighs 8 pounds. A cat’s weight is classified as unhealthy if the weight is located in the top 5% or bottom 5% of all cat weights. The distribution of cat weights is approximately normal with mean 9. 5 pounds and standard deviation 1. 5 pounds. Which of the following is the best description of gordos and flacos weights?.

Answers

Yea I’m going home with you and I don’t have to go to do homework and I’m done ✔️ go to bed early

Scientists discover a new organism. The organism is autotrophic, with membrane-bound organelles. To which of these kingdoms does this organism most likely belong?.

Answers

Protista, would be the answer

Do you think counselors are trustworthy.

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Answer:

Yes.

Explanation:

I feel like they are because of the simple fact they cannot share your information, or anything you have said, with anyone because of confidentiality. The only way they can share anything is if you are going to hurt yourself or others, or if you give them verbal or written permission to do so.

A consumer group is investigating the number of flights.

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Is this all that is there?

Your automatic payment option pays bills of $23. 17, $55. 67, $2,345. 15, $575. 25 and $1. 15. How much was the mean payment?.

Answers

The mean of a set of numbers is the sum divided by the number of terms.

23.17+55.67+2345.15+575.25+1.15= 3000.9

3000.9/5= 600.078

round to $600.08 because money one goes to hundredth

Where are my smart friends?? i had $3. 0. My mom gave $10. 0. My dad gave $30. 0. My aunt and uncle gave me $100. 0. I had another $7. 0. How much did i have?.

Answers

Answer:

150$ you have as you have noticed

I learned that modal adverbs are.

Answers

Answer:

Modal adverbs are used to modify specific verbs that consist of a linking verb (verb of being) and sometimes another verb.

Explanation:

The half-life of protactinium-226 is 2 minutes. If you started with 20 grams of pa-226, how much do you have after 8 minutes?.

Answers

Answer:

28.25

Explanation:

My primary group brainly.

Answers

Answer:

???

Explanation:

A company upgraded production machinery to capture data about the fit tolerance for assembled parts of each unit produced. Before the upgrade, inspectors created the same data by sampling 10 percent of units produced. The upgrade represents an increase in.

Answers

The upgrade in production machinery to capture data about the fit tolerance for assembled parts of each unit produced represents an increase in: data volume.

Big data can be defined as huge collections of data that are typically difficult for users to process, analyze, and manage through the use of conventional data tools.

Basically, big data comprises five (5) "Vs" and these are:

VelocityVeracityValueVarietyVolume

Data volume refers to the amount of data that are stored in a database by an organization for analysis and processing. Thus, data volume represents an organization's data size.

In this scenario, the upgrade in production machinery to capture data about the fit tolerance for assembled parts of each unit produced represents an increase in data volume.

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Hydrogen reacts with chlorine to form hydrogen chloride (HCl (g), Delta. Hf = –92. 3 kJ/mol) according to the reaction below. Upper H subscript 2 (g) plus upper C l subscript 2 (g) right arrow 2 upper H upper C l (g). Which statement is correct? Use Delta H r x n equals the sum of delta H f of all the products minus the sum of delta H f of all the reactants. The enthalpy of the reaction is –184. 6 kJ, and the reaction is exothermic. The enthalpy of the reaction is –184. 6 kJ, and the reaction is endothermic. The enthalpy of the reaction is 184. 6 kJ, and the reaction is endothermic. The enthalpy of the reaction is 184. 6 kJ, and the reaction is exothermic.

Answers

Answer:

a

Explanation:

aaa

The statement which is correct about the reaction of hydrogen with chlorine is used Delta H r x n equals the sum of delta H f of all the products minus the sum of delta H f of all the reactants. The correct option is A.

What is a chemical reaction?

A chemical reaction is a transformation of one or more chemicals (the reactants) into one or more distinct compounds (the products). Chemical elements or chemical compounds make up substances.

When a chemical reaction occurs, the reactance responds by rupturing the bonds in the energy and forming new compounds. Breaking chemical bonds between reactant molecules (particles) and creating new bonds between atoms in product particles are two aspects of chemical reactions (molecules).

Therefore, the correct option is A, Use Delta H r x n equals the sum of delta H f of all the products minus the sum of delta H f of all the reactants.

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A hunter carries a firearm while climbing into and out of a tree stand. What is the proper way to get the firearm into and down from the stand?.

Answers

Considering the situation described above, the proper way to get the firearm into and down from the stand is to use the "haul line like strong rope, strap or commercially made line to carry the firearms."

This is because carrying firearms to climb a tree is dangerous. It is believed that the additional weight of the gun can lead to loss of balance, thereby making the hunter fall.

In some cases, following the hunter's fall, there may be an accidental discharge which may eventually injure or kill the hunter.

Also, when using a haul line to carry the firearms, the hunter still needs to follow certain precautions to avoid accidental discharge, such as unloading of weapons and turning the muzzle upside down.

Hence, in this case, it is concluded that the correct answer is "haul line like strong rope, strap or commercially made line to carry the firearms."

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Identify the type of bonding within each substance.

Answers

Answer:

1. Co ( s ) - metallic bonding

2. CoCl₂ ( s ) - ionic bonding

3. CCl₄ ( l ) - covalent bonding

Explanation:

Metallic bonding -

It is the type of bonding present between the atoms of the metals , via the electrostatic interaction between the metal and the delocalized electrons , is known as metallic bonding .

For example ,

Mostly metals show metallic bonding .

Ionic bonding -

It is the type of bonding present between the ions i.e. , the cation and the anion is known as ionic bonding .

For example ,

Mostly ionic compound , like salts show ionic bonding .

Covalent bonding -

It is the type of bonding which is present between shared pair of electrons , is known as covalent bonding .

For example ,

Most of the carbon compounds are capable to show covalent bonding .

Hence , from the question ,

1. Co ( s ) - metallic bonding

2. CoCl₂ ( s ) - ionic bonding

3. CCl₄ ( l ) - covalent bonding  

To what extent do covalent compounds conduct electricity?.

Answers

Answer:

A covalent bond is formed between non metal atoms, which combine together by sharing electrons. Covalent compounds have no free electrons and no ions so they don't conduct electricity

Explanation:

Answer:

the answer is never

Explanation:

i did the test :)

Ryan invests a sum of money in a savings account with a fixed annual interest rate of 4. 31.

Answers

The amount of his initial investment is $8361

The complete question says:

Ryan invests a sum of money in a savings account with a fixed annual interest rate of 4.31% compounded 12 times per year. After 10 years, the balance reaches $12,855.94. What was the amount of the initial investment?

The initial investment is the amount required to start a particular project,  and the amount of the initial investment can be calculated by using the compound interest formula:

[tex]\mathbf{A = P(1 + \dfrac{r}{n})^{nt}}[/tex]

where;

A = amountP = Principalr = interest rate n = number of months

[tex]\mathbf{12855.94 = P(1 + \dfrac{0.0431}{12})^{12 \times 10}}[/tex]

[tex]\mathbf{12855.94 = P(1 +0.003591666667)^{120}}[/tex]

[tex]\mathbf{12855.94 = P(1.53760)}[/tex]

[tex]\mathbf{P= \dfrac{12855.94}{(1.53760)} }[/tex]

P = $8361.043

P ≅ $8361

Therefore, we can conclude that the amount of the initial investment is $8361

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Erikah has just arrived at the funeral.

Answers

Answer:

Is this real?

Explanation:

Answer : Who’s funeral?

What term best describes region ""b"" of the phospholipid model above?.

Answers

The term which best describes the region "b" of the phospholipid model in the attached image (below) is: Hydrophobic.

Phospholipids are also referred to as phosphatides and they are a type of lipid whose molecule comprises the following:

A hydrophilic "head" that contains a phosphate group.Two (2) hydrophobic "tails" joined by an alcohol residue and that are mainly derived from fatty acids.

This ultimately implies that, a large potion of the cell (plasma) membrane is made up of lipids, which are mainly phospholipids and they control the movement of large hydrophilic molecules such as alkanes, oils, and fats.

In conclusion, hydrophobic is a term that is used to describe the tail or lower part of a phospholipid model, which is the "b" region in the image attached below.

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