What are at least two questions that the field of human computer interaction is trying to address

HELP PLEASE

Answers

Answer 1

Answer:

The primary objective of HCI is to design systems that make them accessible, usable, efficient, and safe for anyone and everyone. This implies that people with a wide range of capabilities, expertise, and knowledge can easily use HCI-designed systems. It also encompasses people with disabilities.

Explanation:


Related Questions

During the maintenance phase of the software development life cycle, the information system is ______

Answers

Design

Explanation:

After the maintenance phase, next you need to design or build the information system

During the maintenance phase of the software development , the information system is design.

What is software development?

Software development is the name given to a group of computer science tasks involved in developing, and maintaining software.

The set of instructions or programs that a computer follows are known as software. It makes computers programmable and is independent.

Operating systems, utilities, hardware management, and other fundamental operational functions are all provided by system software.

creating computer programs that provide code-writing tools including text editors, to programmers.

Therefore, During the maintenance phase of the software development life cycle, the information system is design.

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When methods have ____, other programs and methods may use the methods to get access to the private data.

Answers

When methods have public access, other programs and methods may use the methods to get access to the private data.

What do you mean by public access?

The Definition of the term public access is known to be a kind of a television channel where anybody can be able to broadcast a program

An example is the city council meeting can be able to broadcast on public access.

Hence, When methods have public access, other programs and methods may use the methods to get access to the private data.

See full question below

When methods have ____, other programs and methods may use the methods to get access to the private data.

a. private access

b. public access

c. complete access

d. all access

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Design a class named Cake. Data fields include two string fields for cake flavor and icing flavor and numeric fields for diameter in inches and price. Include methods to get and set values for each of these fields. Create the class diagram and write the pseudocode that defines the class. Design an application that declares two Cake objects and sets and displays their values.

Answers

Using the computer language in pseudocode to write a function code that  declares two Cake objects and sets and displays their values.

Writting the code in pseudocode:

- cake flavor: string

- icing flavor: string

-diameter: num

-price: num

+set cake flavor (cake flavor : string) : void

+set icing flavor (icing flavor: string) : void

+set Diameter(size : num) : void

+set Price(price : num) : void

+get cake flavor () : string

+get cing flavor () : string

+get Diameter() : num

+get Price() : num

Answer A=

Pseudocode:

class Cake

Declarations

private string cake flavour

private string icing flavor

private num diameter

private num price

public void set Cake flavour (string Cake flavour)this. Cake flavour = Cake flavour

return

public void set icing flavour (string icing flavour)this. icing flavour = icing flavour

return

public void set Diameter(num size)

diameter = size

return

public void set Price(num price)

this price = price

return

public string get Cake flavour ()

return Cake flavour

public string get icing flavour ()

return icing flavour

public num get Diameter()

return diameter

public num get Price()

return price

end Class

start

Declarations

Cake my Cake

Cake your Cake

myCake.set cake flavour (“chocalate”)

myCake.set icing flavour (“peppermint”)

myCake.setDiameter(15)

myCake.setPrice(18)

myCake.set cake flavour (“pineapple”)

myCake.set icing flavour (“orange ”)

yourCake.setDiameter(20)

yourCake.setPrice(25)

output “Cake 1 info:”

output myCake.get cake flavour ()

output myCake.get icing flavour ()

output myCake.getDiameter()

output myCake.getPrice()

output Cake 2 info:”

output yourCake.get cake flavour ()

output yourCake.get icing flavour ()

output yourCake.getDiameter()

output yourCake.getPrice()stop

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When is it permissible to access non va websites for personal use using va computers?

Answers

It is permissible only during one's break time or after a person is done with their duty hours and it is only for a short time and it is legal and also ethical.

What is a website?

This is known to be a form of is a composition of publicly accessible, interconnected Web pages that is known to often share a one domain name.

Based on the scenario above, It is permissible only during one's break time or after a person is done with their duty hours and it is only for a short time and it is legal and also ethical.

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A customer is trying to configure an 802.11b wireless card in an old laptop to connect to an 802.11g wireless router. When the customer scans for the wireless network's SSID (Dion-Corp), it is not displayed within Windows. What is the MOST likely reason that the SSID is not being displayed

Answers

In the case above, the most likely reason that the SSID is not being displayed is that The broadcast is disabled on the wireless router.

What is disable broadcast in Wi-Fi?

The term broadcasts is known to be any medium that is often used by organization to share a program.

Note that the act of Disabling the SSID Broadcast is said to  be one of the method of securing a wireless network.

Note also that this procedure will hinder other users from getting or detecting your SSID or one's wireless network name if they ever attempt to see the available wireless networks in one's area.

Therefore, In the case above, the most likely reason that the SSID is not being displayed is that The broadcast is disabled on the wireless router.

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See full question below

A customer is trying to configure an 802.11b wireless card in an old laptop to connect to an 802.11g wireless router. When the customer scans for the wireless network's SSID (Dion-Corp), it is not displayed within Windows. What is the MOST likely reason that the SSID is not being displayed?

Options are :

802.11g and 802.11b use different frequencies

The wireless router is not configured for DHCP support

The broadcast is disabled on the wireless router

The wireless router is configured with WPA2 encryption

To create a datasheet that lists all herbs that are Perennials, Jorge will create a new query. The Perennial field has a data type of Yes/No. Which criterion should Jorge use in the query for the Perennial field

Answers

The criterion that Jorge should use in the query for the Perennial field is Yes

What is a Datasheet?

This refers to the document that summarizes the product specifications and other necessary details of the project.

Hence, we can see that Jorge has created a database for the herb garden he is planting this spring.

The fields in the database include Plant Name, When to Plant, Amount of Sun, Annual, and Perennial.

Therefore, the criterion that Jorge should use in the query for the Perennial field is Yes

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In the case above, to create a datasheet that lists all herbs that are Perennials, Jorge will create a new query. The Perennial field has a data type of Yes.

What means datasheet?

A datasheet is known to be a kind of a document that is known to be often printed or electronic that gives a kind of a details in regards to a product, such as a computer, computer component, and others.

Note that  the datasheet is made up information that can be used to be able to make a buying decision about a product or services by giving technical specifications in regards to the product.

Hence the response is yes, In the case above, to create a datasheet that lists all herbs that are Perennials, Jorge will create a new query. The Perennial field has a data type of Yes.

See full question below

Jorge has created a database for the herb garden he is planting this spring. Fields in the database include: Plant Name, When to Plant, Amount of Sun, Annual, and Perennial. He needs to answer the following questions using his database.Which plants need full sun?Which plants are Perennials? To create a datasheet that lists all herbs that are Perennials, Jorge will create a new query. The Perennial field has a data type of Yes/No. Which criterion should Jorge use in the query for the Perennial field?

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Write a python program that prompts the user to enter 20 numbers, and then calculates and displays the sum of the positive ones.

Coding Assignment

Answers

123456789101112131415161818102

Explanation:

h

The Python program that prompts the user to enter 20 numbers and calculates the sum of the positive ones is given below.

We have,

The Python program that prompts the user to enter 20 numbers and calculates the sum of the positive ones:

def main():

   num_count = 20

   positive_sum = 0

   for i in range(num_count):

       try:

           num = float(input(f"Enter number {i+1}: "))

           if num > 0:

               positive_sum += num

       except ValueError:

           print("Invalid input! Please enter a valid number.")

   print("Sum of positive numbers:", positive_sum)

if __name__ == "__main__":

   main()

In this program, we define a function main() that runs the main logic.

It uses a for loop to prompt the user to enter 20 numbers.

Each input is converted to a floating-point number using float(), and if the number is positive (greater than 0), it adds it to the positive_sum variable.

The program then prints the sum of the positive numbers after all inputs are processed.

Thus,

The Python program is given above.

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You cannot have an invalid entry in the foreign key column; at the same time, you cannot delete a vendor row as long as a product row references that vendor. this is known as:____.

Answers

You cannot have an invalid entry in the foreign key column; at the same time, you cannot delete a vendor row as long as a product row references that vendor. this is known as: referential integrity.

What is the referential integrity?

This is the term that is used to refer to the dependency on a primary key. This is the type of dependency that occurs based on the fact that the foreign key is much more dependent on the primary key.

This terminology is known to be associated with the relationship that is in existent within the given tables. Each of the tables that are of interest have a primary key. These appear based on the given relationships with the other keys in the table.

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According to repko and szostak, what is the term that describes the disagreement among a discipline's practitioner's over the defining elements of the discipline?

Answers

According to repko and szostak,  the term that describes the disagreement among a discipline's practitioner's over the defining elements of the discipline is option D- Cognitive Discord.

What is the relationship between interdisciplinarity and the disciplines?

Based on the words of Quoting Jantsch, “Interdisciplinarity is known to be a well used axiomatics for a set of disciplines is seen at a higher level and  this concept is one that can be used to co-ordinate or handle the disciplines.”

Note that Mono or multi - interdisciplinarity is one that is aim at role or duties concerning one or a lot of concrete cases.

Hence, According to repko and szostak,  the term that describes the disagreement among a discipline's practitioner's over the defining elements of the discipline is option D- Cognitive Discord.

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See options below

A- Metanarrative

B- Perspective taking

C- Epistemic norms of a discipline

D- Cognitive Discord

Refer to the film, actor, and film_actor tables of the Sakila database. The tables in this lab have the same columns and data types but fewer rows. Write a query that: Computes the average length of all films that each actor appears in. Rounds average length to the nearest minute and renames the result column "average". Displays last name, first name, and average, in that order, for each actor. Sorts the result in descending order by average, then ascending order by last name. The query should exclude films with no actors and actors that do not appear in films. Hint: Use the ROUND() and AVG() functions.

Answers

Using the knowledge of computational language in python it is possible to write a code that organizes film, actor and film and actor at the same time.

Writting the code:

SELECT a.last_name, a.first_name, ROUND(AVG(f.length)) AS 'average'

FROM film f

INNER JOIN film_actor fa ON f.film_id = fa.film_id

INNER JOIN actor a ON a.actor_id = fa.actor_id

GROUP BY a.last_name, a.first_name

ORDER BY average DESC, last_name ASC;

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Today, the standard term for placing telephone calls over the Internet or any other type of data network is ____.

Answers

Answer:

VOIP (voice over internet protocol )

Which methods or commands provide access to superuser privileges for authorized users?

Answers

In Linux computer systems, the methods and commands that provide access to superuser privileges for authorized end users are:

The su command.Logging into the root account.The sudo command.

What is a Linux command?

A Linux command can be defined as a software program that is designed and developed to run on the command line, in order to enable an administrator (end user) of a Linux network perform both basic and advanced tasks by entering a line of text.

In Linux computer systems, some examples of the methods and commands that provide access to superuser privileges for authorized administrators (end users) include the following:

The su command.Logging into the root account.The sudo command.

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As a member of the help desk administration team, you've been assigned to update the driver for the network adapter that is installed on most of the machines in your department. You have a copy of the latest driver on a USB flash drive. Which Windows utility will allow you to manually update this new driver?

Answers

The Windows utility that will allow you to manually update this new driver is called the Device Manager.

What is a Device Manager?

This is known to be a form of Computer program or a kind of a component of  a Microsoft Windows operating system that is said to give room for one to be able to see and control the hardware that is said to be attached to the computer.

Hence, The Windows utility that will allow you to manually update this new driver is called the Device Manager.

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The application that Scott is writing has a flaw that occurs when two operations are attempted at the same time, resulting in unexpected results when the two actions do not occur in the expected order. What type of flaw does the application have

Answers

The type of flaw that the application is said to  have is known to be called race condition.

What is meant by race condition?

A race condition is known to be a form of unwanted situation that takes place when a device or system tries to carry out two or more operations at the same given time, but due to the nature of the device or system, the operations had to b be done in the right sequence to be carried out correctly.

Therefore, The type of flaw that the application is said to  have is known to be called race condition.

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This flaw is called a race condition.

What is a race condition?

The term race condition in this context refers to an error that occurs when a program attempts to perform two operations simultaneously. In other words, when two operations are attempted at the same time, this leads to a failure in execution since the two operations do not occur in the expected order.

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The residual volume can be measured directly with: Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a digital spirometer b wet spirometer c both digital and wet spirometers d it can not be measured directly

Answers

The residual volume can not be measured directly.

How is residual volume measured?

Residual volume is known to be measured by what we call a gas dilution test.

Note that this test often  measures how the concentration of the gases in the container changes.

What is residual volume?

This is known to be the Volume of air that is left over after a FORCED EXPIRATION. Note that it is one that cannot be measured by a spirometer.

Hence, The residual volume can not be measured directly.

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Question 3 Fill in the blank: Curiosity, understanding context, having a technical mindset, data design, and data strategy are _____. They enable data analysts to solve problems using facts.

Answers

Curiosity, understanding context, having a technical mindset, data design, and data strategy are data driven.

What are data driven skills?

Data-driven decision-making is known to be one that entails the five analytical skills which are:

curiosity, understanding context, having a technical mindset, data design, data strategy.

Hence,  Curiosity, understanding context, having a technical mindset, data design, and data strategy are data driven.

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________ tells users how to use software and what to do if software problems occur.

Answers

Answer:

Documentation tells users how to use software and what to do if software problems occur.

Explanation:

Documents and Standard Operating Procedures (SOPs) help users use the software that they want to use. This is an advantage to whoever is selling the software so that they don't receive customer complaints and people continue to buy their product.

In operant conditioning, the reduced frequency of behavior when it is no longer reinforced is known as:_______

Answers

In operant conditioning, the reduced frequency of a person's behavior when it's no longer reinforced is referred to as extinction.

The types of reinforcement.

In operant conditioning, there are four (4) main types of reinforcement and these include the following:

PunishmentNegative reinforcementPositive reinforcementExtinction

In operant conditioning, extinction refers to the reduced frequency of a person's behavior when it's no longer reinforced.

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Joe has been issued a company-owned tablet. He finds that the performance decreases after a few hours of use. After he power-cycles the tablet, performance returns, but the tablet begins to slow again after an hour of use. Which of the following is the BEST action to troubleshoot the problem

Answers

The best  action to troubleshoot the problem is Airplane mode has been set on the tablet.

What does airplane mode do?

Airplane mode is known as “flight mode” as it is said to be a setting that can be seen on a  smartphone that temporarily hinders signals and Wi-Fi.

Note that The best  action to troubleshoot the problem is Airplane mode has been set on the tablet.

See options below

Which of the following is the MOST likely cause of this issue?

MAC filtering has been enabled on the branch office wireless access point.

Joe's tablet has been configured with full device encryption.

Airplane mode has been set on the tablet.

The connection between the branch office router and internet service provider is down.

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Question 5 options: The description of ________ can be given by a lexical specification, which is usually separate from the syntactic description of the language

Answers

The description of LEXEMES can be given by a lexical specification, which is usually separate from the syntactic description of the language.

What is  syntactic structure of language?

Syntactic structure is known to be a form of an alphabet that are known to be legal characters.

Note that The description of LEXEMES can be given by a lexical specification, which is usually separate from the syntactic description of the language.

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In the u. S. , what are the privacy rights that workers have with respect to emails sent or received in the workplace?

Answers

In the U. S. , what are the privacy rights that workers have with respect to emails sent or received in the workplace is that:

Workers have a little privacy protections in regards to workplace emails.

What is the above case about?

Email are known to be often used to send or transmit a one-way messages or be involved in two-way communication and as such;

In the U. S. , what are the privacy rights that workers have with respect to emails sent or received in the workplace is that:

Workers have a little privacy protections in regards to workplace emails.

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Mel is a research scientist at a health sciences center. His job requires him to analyze large amounts of data in short periods of time. Select the best computer for me?

Answers

In the case above, Mel needs a  desktop computer with a fast processor.

What is data for a computer?

Computer data is known to be a form of information processed or saved by a computer. This information is saved as text documents, images, audio clips, software programs and others.

Hence due to the volume of work and in In the case above, Mel needs a  desktop computer with a fast processor.

See options below

23

Mel is a research scientist at a health sciences center. His job requires him to analyze large amounts of data in short periods of time.

Select the best computer for Mel.

A handheld tablet computer

A desktop computer with two screens

A desktop computer with a fast processor

A portable laptop computer

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Submit a report outlining the steps you will take to obtain digital evidence. In your report you must include the legal requirements, ethical considerations, and the digital sources you will be investigating in hopes of recovering data and collecting evidence to determine who was responsible for the data exfiltration.


For all assignments, remember the following important elements:

Proofread for spelling, grammar, and punctuation.
You may respond in bullet form for this project, but use standard written English. Do not use texting abbreviations or other similar shortcuts.

Answers

The steps you will take to obtain digital evidence.

One has to Respond First. Then a Search and Seizure is ordered.There is the Evidence Collection. There is the Securing of the Evidence. There is Data Acquisition stage.Then there is Data Analysis. Then there is Evidence Assessment. Then there is  Documentation and Reporting.The last is expert witness testimony.What is Digital evidence?

Digital evidence is known to be a kind of information that is often saved or transmitted in a method that uses binary form that can be relied on in case of court.

Note that it is one that can be found on a computer hard drive, a mobile device such as phone, among other means.

Hence, The steps you will take to obtain digital evidence.

One has to Respond First. Then a Search and Seizure is ordered.There is the Evidence Collection. There is the Securing of the Evidence. There is Data Acquisition stage.Then there is Data Analysis. Then there is Evidence Assessment. Then there is  Documentation and Reporting.The last is expert witness testimony.

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Developers found a "time of check to time of use" (TOCTTOU) vulnerability in their application. The vulnerability made it possible to change temporary data created within the app before the app uses the data later. This vulnerability is taking advantage of what process in the application?

Answers

This vulnerability above is taking advantage of the race condition process in the application.

What is race condition?

This race condition is said to be in the critical section or one that is a part of the program and it is a place where shared memory is accessed and it is concurrently worked on or executed by two or more threads.

Hence,  This vulnerability above is taking advantage of the race condition process in the application.

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_______________ is a technology system requiring the driver to maintain constant control of the vehicle.

Answers

The technology system requiring the driver to maintain constant control of the vehicle are:

 Forward collision avoidance Automatic emergency braking Lane keeping assist

What is technology?

Technology can be regarded as the application of science to bring improvement to mankind at large.

It should be noted that The technology system requiring the driver to maintain constant control of the vehicle includes  Forward collision avoidance as well as Automatic emergency braking and Lane keeping assist .

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If a user has a low level of digital literacy, what might they have trouble interpreting?

Answers

If a user has a low level of digital literacy,  they might have trouble interpreting:

Calls to action IconsDesign patterns

What is digital literacy?

Digital literacy  can be regarded as the  an individual's ability in finding the evaluation, and communication of  information through typing and other media on various digital platforms.

It can be evaluated with  individual's grammar as well as the composition and  typing skills and ability to produce text, with technology.

It should be noted that If a user has a low level of digital literacy,  they might have trouble interpreting Calls to action and  Icons and Design patterns.

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COMPLETE QUESTION:

If a user has a low level of digital literacy, what might they have trouble interpreting? Select all that apply.

a. Calls to action

b. Words

c. Icons

d. Design patterns

In fedora 20, the logging system used to record the messages normally stored within the boot.log, messages, and syslog files has been replaced by a journaling database system called?

Answers

The logging system which has replaced the journaling database system for use in recording messages that are normally stored within the boot.log is Journald.

What is Journald?

Journald refers to a logging system service which allows for messages to be stored and does so in an easier way so that system administrators can find relevant and interesting information when they look through log messages.

In the past, these messages that Journald now stores would have been stored in boot.log, messages, and syslog files but thanks to Journald using the special file format which is made especially for log messages, this has changed.

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Class ____________ allow you to create one version of a class, without having to replicate code to handle multiple data types.

Answers

Class templates allow you to create one version of a class, without having to replicate code to handle multiple data types.

Answer:

Class templates allow you to create one version of a class, without having to replicate code to handle multiple data types.

Explanation:

A template is a general and already formatted standard that many people can use and customize on their own. For example, a PowerPoint template already has the font size, font, and background already picked, and you can put what you want on it.

One difference between a switch and a router is that a router will only process messages addressed to the router (at layer 2), while a switch processes all messages.

Answers

Answer: True

Explanation:

A coworker is exploring virtualization for some development projects, and is trying to decide between a bare metal hypervisor and a hosted one. Which of the following pieces of advice should you give

Answers

The pieces of advice that one should give are:

A hosted hypervisor will be easier to set up and maintain if you're new to virtualization.Bare metal hypervisors can run more VMs on the same hardware

What is virtualization?

Virtualization is one that depends on software so as to be able to simulate hardware functionality and make a kind of a virtual computer system.

Hence, The pieces of advice that one should give are:

A hosted hypervisor will be easier to set up and maintain if you're new to virtualization.Bare metal hypervisors can run more VMs on the same hardware

See full question below

A coworker is exploring virtualization for some development projects and is trying to decide between a bare metal hypervisor and a hosted one. Which of the following pieces of advice should you give? Choose all that apply

answer choices

A hosted hypervisor will be easier to set up and maintain if you're new to virtualization.

Bare metal hypervisors can run more VMs on the same hardware

You can run a bare metal hypervisor within your existing operating system.

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the solubility of agcl is 0.008 grams/100 grams of water. what is this concentration in ppm The rational expectations theory states that individuals and firms make decisions by taking everything into account. Thus:A) if it's clear that the government intends to trade off higher inflation for lowerunemployment, the public will understand this and help the government achieve itsgoal.B) if it's clear that the government intends to trade off higher inflation for lowerunemployment, the public will understand this and inflation expectations willimmediately rise.C) a government attempt to trade off higher inflation for lower unemployment wouldnot work in the short run but would be fine in the long run.D) if people are not expecting inflation and are unaware of government policies,inflation expectations are not going to be embedded. by entering a projects limiting factors into a project management software system, a manager can receive ________ recommendations. express force f in cartesian vector notation, given: f = 480 lbs, = 25, = 30 do you think we are tough enough on juveniles who commit crimes? how would you change it? the position of a particle moving in the xy plane is given by the parametric equations x(t)=cos(2^t) and y(t)=sin(2^t) if a 5.00 f capacitor and a 3.50 mq resistor form a series rc circuit, what is the rc time constant? give proper units for rc and show your work. rc= Vaughn Church Furniture manufactures custom pews, altars, and pulpits for churches across the southern United States. Since each order is unique, Vaughn uses a job order costing system. During the month of June, Vaughn worked on orders for three churches: Faith Church, Grace Church, and Hope Church. Production on the Faith and Grace orders began in May, and the Faith job was completed in June. Production on the Hope order began in June and was incomplete at the end of the month. Vaughn applies overhead to each job based on machine hours. Prior to the year, managers had estimated manufacturing overhead at $693,000, along with 21,000 machine hours. Additional cost information related to the three orders is as follows: Using the t-tables, software, or a calculator, estimate the critical value of t for the given confidence interval and degrees of freedom.90% confidence interval with df = 4.a4.604b2.353c1.533d1.645e2.132 The magnitude of the crystal field splitting energy is dependent on the size of P, which is the spin pairing energy.a. Trueb. False Write a recursive method that will print 5 consecutive numbers exactly divisible by 3 beginning with and including the number 30. The method should print the following.30 33 36 39 42Hint: a number n is exactly divisible by 3 if n%3==0Want extra credit? Six more points if you write another method to do the same but backwards. It should print the following42 39 36 33 30 in a tree based replication with n locations registers what is the worst case update cost a force of magnitude 112lb and one of 84lb are applied to an object at the same point, and the resultant force has magnitude 162 lb. You are in a browser-like environment, where you have access to the window object, the document object, and also $ the jQuery library. Thedocument contains a two-dimensional table. Each cell of the table has an upper-case letter in it and has its background color and text color set.Your task is simply to read the letters in row-major order (top to bottom, left to right), concatenate them into a single string and return it. However,you need to skip the letters that cannot be seen by the human eye. These are the ones whose colour is exactly the same as their background (thatis, even marginal difference can be distinguished by a human eye).The table is created using "table", "tbody", "tr" and "td" tags. Each "td" tag has a "style" attribute with its CSS "background-color" and"color" attributes set. There is the same number of cells in each row.Write a functionfunction solution();that, given a DOM tree representing an HTML document, returns a string containing all visible letters, read in row-major order.For example, given a document which has the following table in its body: A 64.0-kg skier starts from rest at the top of a ski slope of height 62.0 m.A)If frictional forces do -1.10104 J of work on her as she descends, how fast is she going at the bottom of the slope?Take free fall acceleration to be g = 9.80 m/s^2. A Local Area Network (LAN) uses Category 6 cabling. An issue with a connection results in a network link degradation and only one device can communicate at a time. What is the connection operating at?Full DuplexHalf DuplexSimplexPartial A vortex and a uniform flow are superposed. These elements are described by: vortex: u, = 0 Ug = -40/ uniform flow: u = 15 V = 40 What is the x-component of the resulting velocity V at the point (7,0) =(2,30)? each parking spot is 8 feet wide a parking lot has 24 parking spot side by side, what is the the width (measured yard) of the parking lot Construct a single state machine C representing the composition. Which states of the composition are unreachable?input: a: pure output: b: pure a alb a/b a/ input: b: pure output: c: pure -b/c b/c 16 b b/ s1 52 $4 B the estimated change in mean salary (in thousands of dollars) as a result of spending an extra hour per day studying is 1) $979.5. O2) $0.9795. 3) $335.0473 4) -1.8940.