how many bit strings of length 10 over the alphabet {a,b,c} have either exactly three as or exactly four bs

Answers

Answer 1

The number of bit strings of length 10 over the alphabet {a,b,c} have either exactly three as or exactly four bs is given as follows:

28,800.

How to obtain the number of bit strings?

With three bs, the string is composed as follows:

Three bs from a set of 10 positions. (combination formula).The remaining seven positions each have two possible outcomes, either a or c.

Then the number of strings with three bs is given as follows:

C(10,3) x 2^7 = 10!/(3! x 7!) x 2^7 = 15,360.

With four bs, the string is composed as follows:

Four bs from a set of 10 positions. (combination formula).The remaining six positions each have two possible outcomes, either a or c.

Then the number of strings with four bs is given as follows:

C(10,4) x 2^6 = 10!/(4! x 6!) x 2^6 = 13,440.

Then the total number of strings is calculated as follows:

15,360 + 13,440 = 28,800.

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Related Questions

. An engineer has calculated the list of subnet IDs, in consecutive order, for network
172.30.0.0, assuming that the /22 mask is used throughout the network. Which of the
following are true? (Choose two answers.)
a.
Any two consecutive subnet IDs differ by a value of 22 in the third octet.
b.
Any two consecutive subnet IDs differ by a value of 16 in the fourth octet.
c.
The list contains 64 subnet IDs.
d.
The last subnet ID is 172.30.252.0

Answers

The network as a whole employs the /22 mask. 64 subnet IDs are included in the list. 172.30.252.0 is the last subnet ID shown.

How can you figure out how many subnets there are in a network?

Number of total subnets: The value 248 (11111000) of the subnet mask 255.255.255.248 shows that 5 bits are utilized to identify the network.

How is an ID for a subnet determined?

By counting the subnet bits, also known as the number of bits by which the initial mask was stretched, one can determine the number of subnets. We were first given the IP 192.168.0.0 with the mask 255.255.0.0.

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A network engineer has determined the list of subnet IDs, in chronological order.

A. Any two consecutive subnet IDs differ by a value of 22 in the third octet.

D. The last subnet ID is 172.30.252.0.

What is engineer?

Engineering is the application of scientific principles and practical knowledge to design, create and analyze technological solutions. It is a field of study that combines the use of mathematics, science and technology to solve problems in the real world. Engineers use their knowledge of mathematics, science and engineering principles to create innovative solutions to a wide range of problems. Engineers work in a variety of industries, from aerospace and automotive to biomedical and electrical. They also work in many different settings, from research laboratories to manufacturing facilities. Engineers are responsible for creating products, machines, systems and processes that meet the needs of customers and society.

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the multimedia effect states that we learn better when information is presented both verbally and visually. True or false

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According to the multimedia effect, we retain knowledge better when it is delivered verbally and visually. which is incorrect. When text, drawings, still and moving images (videos), graphics, audio, and animation are combined with computer assistance, this is referred to as multimedia.

What is multimedia ?

false The "multimedia effect," which is supported by research, states that most people digest information more effectively when it is delivered audibly and graphically.Your audience will be able to visually experience your speech through all five of their senses—hearing, vision, smell, taste, and touch—because you are speaking in real time. The audience's overall experience of your topic is enhanced by presentation aids in addition to your vocal and nonverbal embodiment.Charts and graphs called pictograms employ symbols and pictures to represent data.

Pictograms, sometimes referred to as "pictographs," "icon charts," "image charts," and "pictorial unit charts," use a string of recurrent icons to represent straightforward facts.The most popular type of visual assistance today is certainly Microsoft PowerPoint.A presentation can be supported by slides created and displayed using the computer program PowerPoint.

Therefore the correct answer is false .

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A team member who does not feel comfortable disagreeing with someone’s opinion in front of the team would most likely come from a(n) _____ culture.

cooperative
cooperative

individualistic
individualistic

collectivistic
collectivistic

competitive

Answers

A team member who does not feel comfortable disagreeing with someone’s opinion in front of the team would most likely come from a collectivistic culture.

What is collectivistic culture?

In collectivistic cultures, people are considered "good" if they are generous, helpful, dependable, and attentive to the needs of others. This contrasts with individualistic cultures, which often place a greater emphasis on characteristics such as assertiveness and independence. People in collectivist cultures, compared to people in individualist cultures, are likely to define themselves as aspects of groups, to give priority to in-group goals, to focus on context more than the content in making attributions and in communicating, to pay less attention to internal than to external processes. As a result, collectivist cultures value collaboration, communalism, constructive interdependence, and conformity to roles and norms. A collectivist culture is especially likely to emphasize the importance of social harmony, respectfulness, and group needs over individual needs.

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Programs that perform business functions, such as general ledger and accounting, are examples of ________.a) application softwareb) system softwarec) firmwared) operating systems

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Applications software includes, for instance, general ledger and accounting programs that carry out business operations.

What is software for application systems? Examples of application software include programs that carry out administrative tasks like general ledger and accounting.A particular kind of computer program called application software carries out particular professional, academic, and personal tasks.Each program is made to help users of it do a range of tasks, some of which might be connected to productivity, creativity, or communication.Accounting, purchasing, project management, risk management and compliance, and supply chain management are just a few of the everyday business tasks that are managed by firms using enterprise resource planning (ERP) software.An illustration of application software is shown below:Spreadsheet, presentation, word processing, and multimedia software are just a few examples of the types of software available.Business software that is frequently used:Desktop publishing applications, asset management software, billing software, payroll software, asset accounting software, and word processing software.

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In general terms, the cloud refers to high-power, large-capacity physical _____ located in data centers, and each one typically hosts multiple _____.

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A data center's high-power, large-capacity physical servers, each of which often houses several virtual servers, are referred to as the "cloud" in general.

By cloud computing, what do you mean?

A type of abstraction known as "cloud computing" is built on the idea of pooling real resources and presenting them to consumers as virtual resources. In the simplest terms, cloud computing refers to the practise of storing and accessing data and software on remote servers located online rather than a computer's hard drive or local server.

A virtual server: what is it?

In contrast to dedicated servers, virtual servers pool hardware and software resources with other operating systems (OS).

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The default view that PowerPoint opens in is called ____ view.
a. Slide
b. Normal
c. Standard
d. Edit

Answers

Correct answer:- (b) Normal

The default view that PowerPoint opens in is called the normal view.

What is a default view sometimes known as?

The Normal view in PowerPoint is the default view. The normal view is the one in which we may format, add slides, and modify.

Which slide in PowerPoint is the default?

When you create a new presentation, by default, a Title slide will be added since Micro-soft believes that the first slide in your presentation should be for the title. Two text boxes can be included on a title slide.

What makes it a default?

When a borrower ceases making the required payments on a loan, a default happens. Whether the debt is secured, like a mortgage secured by real estate, or unsecured, like credit cards or student loans, defaults can happen.

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a tool preset can be used to store all brush-related settings, such as brush shape, blending mode, and opacity, in a single selection. t/f

Answers

A tool preset can be used to store all brush-related settings, such as brush shape, blending mode, and opacity, in a single selection. This statement is true.

What is meant by single selection ?

An answer option or form control that allows a user to select one from a group of related options is known as a single-select.

Because it chooses or disregards a single action (or, as we'll see in a moment, a single collection of actions), the if statement is a single-selection statement. Because it chooses between two distinct actions, the if... else statement is referred to as a double-selection statement (or groups of actions).

For each characteristic or parameter on a view, selection lists provide the user with a comprehensive list of all possible options. You can choose the suitable property or parameter value from a list using a selection list.

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You’re using last-click attribution, but would like to see how first-click attribution would value channels and campaigns. Which report can you use to find this insight?Conversion paths
Funnel exploration
Segment overlap
Model comparison

Answers

The report that can be used to find this insight is a model comparison. The correct option is c.

What is a model comparison?

The many conventional statistical tests that are frequently taught to students of the social sciences (and others), according to Judd et al. (2008), can all be seen as statistical comparisons of two different models of the data.

They view statistical inference testing as a "model comparison" process within the context of the least-squares criteria. The resulting unified framework offers researchers a great deal of flexibility in terms of altering their statistical tests to concentrate on the specific research issues they wish to address.

Therefore, the correct option is c, Model comparison.

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Which of the following should be selected as X in the given series of clicks to set formulas for manual calculation: File < Options < X < Manual?
a. Proofing
b. Language
c. Formulas
d. Advanced
Formulas

Answers

C. Formulas. Excel is forced to recalculate each and every calculation in every open spreadsheet, including those that have not been altered, by pressing Ctrl + Alt + F9.

How are the automated formula calculation choices set?

Click the Formulas tab in the Excel spreadsheet for the web. Select one of the following choices from the dropdown menu next to Calculation Options: Click Automatic to have all dependent formulae recalculated each time a value, formula, or name is changed. The default setting is this.

Which of the following is a computation tool?

Abacus, sometimes known as abaci or abacuses, is a long-used calculating tool in trade that is likely of Babylonian origin.

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question 2 (10 pts): briefly explain the overall algorithm of afl approach. (hint: see its documentation)

Answers

American Fuzzy Lop, often known as AFL, is a smart fuzzer that generates new test cases by changing the seed input that is supplied at the start of the fuzzing process.

Describe the fuzzing.

Programming and software development use fuzzing, a technique for automated software testing that involves providing random, false, or faulty input into a computer program.

The software is then examined for defects such as crashes, failed in-built code assertions, or potentially dangerous memory leaks.

The majority of the time, fuzzers are used to assess programs that accept structured inputs.

This structure, which distinguishes between acceptable and unacceptable input, is described, for instance, in a file format or protocol.

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a researcher conducted an experiment in whice he compared two methods of teaching if there were 10 people

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A researcher ran an experiment in which he contrasted two teaching strategies for a class of ten students. then using 10 as a teaching strategy.

What is a good number of people for an experiment?

When utilizing qualitative methods, 30 is more than sufficient and a respectable sample size, but when using quantitative methods and analysis, less than 100 is insufficient for even a basic statistical analysis.

It is fairly simple to differentiate instruction and learning. Giving lessons on a specific subject to a group of students is the simple definition of teaching. Learning, on the other hand, is obtaining knowledge through study, instruction, and experience.

Face-to-face lectures involve students and instructors interacting in real time, which is one of the key contrasts between face-to-face and online training. In contrast, online students study at their own pace, going through lectures and other course materials.

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Your friend is trying out your new password generator program. She wants to know how it works. How would you explain it to her? Keep in mind that she does not know Python code. Make sure to use good communication techniques.

k12

Answers

The program generates a password by using a dice. That specific dice is filled with billions of strong password combinations. You roll that die and it would land on a combination with a strong password that is easy to remember and that you can use to safely secure your accounts.

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You can use anything as an example like food, air, etc.

I hope this helps

a error occurs when the program successfully compiles, but halts unexpectedly during runtime.

Answers

Run-time errors are when a software correctly builds, but then unexpectedly crashes during runtime.

What is run-time errors ?

A runtime error is a software or hardware issue that interferes with Internet Explorer's proper operation. When a website employs HTML code that conflicts with a web browser's capability, runtime issues may result. A runtime error happens when a program has a problem that is only discovered during program execution even though it is syntactically sound.

Here are some instances of typical runtime faults you are guaranteed to encounter: The Java compiler is unable to catch these flaws at build time; instead, the Java Virtual Machine (JVM) only notices them when the application is running. Variable and function names that are misspelled or wrongly capitalized. attempts to conduct operations on incorrectly typed data, such as math operations (ex. attempting to subtract two variables that hold string values)

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