answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ololo11 [35]
2 years ago
6

There are n coins, each showing either heads or tails. We would like all the coins to show the same face. What is the minimum nu

mber of coins that must be reserved?
Computers and Technology
1 answer:
faust18 [17]2 years ago
6 0

Answer:

Its nCr = n!/(r!.(n-r)! =n!/!!.(n-1)! = n

Explanation:

Here. the arrangement of outcome does not matters, and hence it is a combination. You should know that when arrangement matters then we have to calculate the permutation and its formula is n!/(n-r)!. However, here it is the combination, and hence its nCr or n!/r!. (n-r)!. And here r is 1 as we can have all heads or all tails. And n is n. Hence,

Its nCr = n!/(r!.(n-r)!

           =n!/!!.(n-1)!

           = n

You might be interested in
A user complains that her computer is performing slowly. She tells you the problem started about a week ago when new database so
k0ka [10]

Answer:

Option (B) is the correct of this question.

Explanation:

The performance of a monitor and process counters to observe the performance is the tool or method which determines the new software is hogging the computer resources. So this way the user don't have any problem with computer.

  • You can view log files in Windows Performance Monitor to see a visual representation of the performance counter data.
  • Performance counters are bits of code that log, count, and measure software events that allow a high-level view of user trends.
  • To customize the tracking of AD FS output using the Quality Monitor.
  • Type Output Monitor on Start screen, then click ENTER.
  • Expand Data Collector Sets in the console tree, right-click on User Specified, point to New, then select Data Collector Collection.

Other options are incorrect according to the given scenario.

4 0
2 years ago
This program finds the sum and average of three numbers. What are the proper codes for Lines a and b?
Gennadij [26K]

Answer:

The Proper codes in Line a and Line b is given below

average=Sum/3  

print (" Average is = ", average)

Explanation:

In the given question it calculated the sum but the program does not calculate the average of the 3 numbers.The average of the 3 number is calculated by using average=Sum/3   statement so we add this code in Line a then After that print the value of average by using the print function so we add this code in Line b.

4 0
2 years ago
Read 2 more answers
A company wants to inform a select list of it's regular customers about a flash sale. Which type of platform will it use to send
blondinia [14]
<h2>Answer :</h2>

In case of Flash Sale, usually company uses Instant messages or SMS. As there are chances customer in most of the cases don’t have access to their emails due to internet unavailability. However SMS can be directed towards customers without the requirements of an internet. In case of SMS, there are companies available that can shoot out targeted SMS based on cities or even an entire country at a very minimal price. Company can provided them there contacts as well as they have a list of numbers from different sources to which they can send instant messages.


5 0
2 years ago
A windows host sends a tcp segment with source port number 1200 and destination port number 25. the sending host is a(n) _______
tigry1 [53]
Email client as port 25 is the default port for an email server.
6 0
2 years ago
Susie works for an architectural firm and the partners have always drawn the plans for projects by hand. Though Susie learned ho
lidiya [134]

Answer:

The correct answer to the following question will be CAD.

Explanation:

CAD - It stands for Computer-aided Design. CAD is a software used for creating some 3D designs, creative drawing or some technical illustrations and is basically used by the engineers and artists.

Many projects based on electronic can be designed with the help of this software, electronic parts like circuit boards, etc.

Various types of CAD are as follows :

  • 2D (Two dimensional)
  • 3D (Three dimensional)
  • 3D wire frame
  • Solid modeling

This enables efficiency in design's quality, also increase in engineer and artist's productivity. So, many of the computer programs should recommend the Computer-aided design software to there project partners for some 3D and effective look on their project.

3 0
2 years ago
Other questions:
  • When a machine on the public network wants to reach the server at 172.30.0.10, which ip will it use?
    6·2 answers
  • Jesse would like to modify the table that he has inserted into a Word document by making the first row a single header cell.
    15·2 answers
  • For multicore processors to be used effectively, computers must understand how to divide tasks into parts that can be distribute
    6·1 answer
  • #Imagine you're writing a program to check if a person is
    8·1 answer
  • A company wants to publish Knowledge articles to its Customer Community. The articles should be organized for easy navigation by
    6·1 answer
  • Type two statements that use rand() to print 2 random integers between (and including) 100 and 149. End with a newline. Ex:
    8·2 answers
  • Write a program that reads an integer and displays, using asterisks a filled and hollow square, placed next to each other. for e
    9·1 answer
  • On the Direct Marketing worksheet, create appropriate range names for Design Fee (cell B8), Cost Per Ad (cell B9), Total Clicks
    15·1 answer
  • Write a class named Employee that has private data members for an employee's name, ID_number, salary, and email_address. It shou
    7·1 answer
  • What should businesses do in order to remain competitive under the current Cloud<br> landscape?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!