A set of blocks contains blocks of heights 1,2, and 4 centimeters. Imagine constructing towers of piling blocks of different heights directly on top of one another. (A tower of height 6 cm could be obtained using six 1-cm blocks, three 2-cm blocks, one 2-cm block with one 4-cm block on top... etc) Let t be the number of ways to construct a tower of height n cm using blocks from the st ( assume an unlimited supply of blocks of each size).

Required:
Find a recurrence relation for t1,t2,t3...

Answers

Answer 1

Answer:

In studies about new medicines, researchers usually give one group of patients the medicine that is designed to treat an illness. They give another group of patients a placebo, which is taken the same way as the medicine but does not actually contain the ingredients of any medicine. Different medicines are tested in different experiments, but the placebos usually contain the same non-medical ingredients. If both groups of patients are healed, then researchers cannot be sure whether the medicine caused improvement, but if the group given the medicine is healed while the group given the placebo remains ill, researchers can conclude that the medicine causes the illness to go away.

In medical experiments, which group receives placebos?

the experimental group

the control group

both the experimental and control groups

neither the experimental nor control group

Explanation:


Related Questions

What is the importance of using Onedrive in Windows 10 and how knowledge of it will have an impact in today's workplace?

Answers

The importance of one drive in windows 10 is that it helps the user to synchronize files in their computer.

Onedrive is a cloud storage system that is useful for the storage of files in a secured manner. A person can easily access their files whenever they want to.

In todays workplace a knowledge of onedrive has a great impact because

Onedrive offers an unlimited access to files whenever they are neededThe files can be available and accessed from anywhereIt helps with the organization of files in the work place.

One drive allows for this to be done even when offline. When online, there is an automatic synchronization of the made changes.

Read more at https://brainly.com/question/17163678?referrer=searchResults

Windows 10's one drive is useful because it enables users to synchronize information among various computers.Onedrive is indeed a cloud storage solution that can be used to store data in a secure environment.The user gets easy access to their files when their desire.In today's workplace, knowing how to use OneDrive is necessary because it gives unrestricted access to files anytime they're needed.The information can be transferred anywhere at.It assists with the arrangement of files in the workplace.It can be done and if you're not linked to the Network. Once you're online, the modifications you've performed are synchronized immediately.

Learn more:

brainly.com/question/24369537

Write a void function SelectionSortDescendTrace() that takes an integer array and sorts the array into descending order. The function should use nested loops and output the array after each iteration of the outer loop, thus outputting the array N-1 times (where N is the size). Complete main() to read in a list of up to 10 positive integers (ending in -1) and then call the SelectionSortDescendTrace() function. If the input is:

Answers

Answer:

Explanation:

The following program is written in Java. The main method asks the user to enter 10 different integer values. These values are saved to an integer array and passed to the SelectionSortDescendTrace() method. This method sorts the array in descending order while printing the entire array after every outer loop cycle. The program was tested and the output can be seen in the attached image below.

import java.util.*;

class Brainly {

   // Main Method

   public static void main(String[] args)

   {

       Scanner in = new Scanner(System.in);

       int[] myArr = new int[10];

       for (int i = 0; i < 10; i++) {

           System.out.print("Enter an integer: ");

           myArr[i] = in.nextInt();

           System.out.print('\n');

       }

       SelectionSortDescendTrace(myArr);

   }

   public static void SelectionSortDescendTrace(int[] myArr) {

       int temp;

       for (int i = 0; i < myArr.length; i++)

       {

           for (int j = 0; j <myArr.length; j++)

           {

               if (j != myArr.length - 1)

               {

                   if (myArr[j] < myArr[j + 1])

                   {

                       temp = myArr[j];

                       myArr[j] = myArr[j + 1];

                       myArr[j + 1] = temp;

                   }

               }

           }

           System.out.println(Arrays.toString(myArr));

       }

   }

}

What is the importance of planning a web page before starting to create it?

Answers

The importance of planning a web page according to the question is provided below.

A well-designed company's website may contribute to making even your potential consumers a favorable immediate impression.

This might also assist people to cultivate guidelines and make additional transformations. Further significantly, it brings pleasant client interaction as well as allows customers to your website unrestricted access as well as browse easily.

Learn more about the web page here:

https://brainly.com/question/9060926

Is IBM 1041, Minicomputer? Yes or no​

Answers

Answer:

No

Explanation:

Give examples of applications that access files by each of the following methods:
+ Sequentially.
+ Random.

Answers

Answer:

Explanation:

Usually, applications would have the capability of using either one of these options. But for the sake of the question here are some that usually prefer one method over the other.

Any program that targets an API usually uses Sequential access. This is because API's contain all of the data as objects. Therefore, you need to access that object and sequentially navigate that object to the desired information in order to access the data required.

A music application would have access to an entire folder of music. If the user chooses to set the application to randomly play music from that folder, then the application will use a Random Access method to randomly choose the music file to load every time that a song finishes.

WHICH PROGRAMMING LANGUAGES ARE THE BEST AND COMPATIBLE FOR 3D PRINTERS?

Answers

Answer:

G-code and C++ can be used

A processor’s speed is measured in (a) or gigahertz. The (b) (higher/lower) the hertz, the faster the processing of instructions.
(a)

(b)

Answers

Answer:

(a) gigahertz(b) higher

Explanation:

As,

The processor's speed measures the number of cycles your CPU executes per second, measured in GHz (gigahertz).The higher the processor's hertz a CPU has, the faster it can process instructions.

Answer:

A) Gigahertz.

B) Higher.

Explanation:

i took the test

, , and angle x and angle y are both in the first quadrant.

Answers

Answer:

[tex]\tan(x+y) = 3.73[/tex]

Explanation:

The missing part of the question are:

[tex]\sin(x) = \frac{1}{2}[/tex]

[tex]\cos(y) = \frac{\sqrt 2}{2}[/tex]

Required

[tex]\tan(x + y)[/tex]

First, we calculate [tex]\sin(y)[/tex] and [tex]\cos(x)[/tex]

We have:

[tex]\sin^2(x) + \cos^2(x) = 1[/tex]

So:

[tex](1/2)^2 + \cos^2(x) = 1[/tex]

Collect like terms

[tex]\cos^2(x) = 1 - (1/2)^2[/tex]

[tex]\cos^2(x) = 1 - \frac{1}{4}[/tex]

Take LCM

[tex]\cos^2(x) = \frac{4-1}{4}[/tex]

[tex]\cos^2(x) = \frac{3}{4}[/tex]

Square roots of both sides

[tex]\cos(x) = \frac{\sqrt 3}{2}[/tex]

Similarly,

[tex]\sin^2(y) + \cos^2(y) = 1[/tex]

So:

[tex]\sin^2(y)+(\sqrt 2/2)^2 = 1[/tex]

[tex]\sin^2(y)+ (2/4) = 1[/tex]

[tex]\sin^2(y)+1/2 = 1[/tex]

Collect like terms

[tex]\sin^2(y) = 1 - 1/2[/tex]

Take LCM

[tex]\sin^2(y) = \frac{2 -1}{2}[/tex]

[tex]\sin^2(y) = \frac{1}{2}[/tex]

Square roots of both sides

[tex]\sin(y) = \frac{1}{\sqrt2}[/tex]

Rationalize

[tex]\sin(y) = \frac{\sqrt2}{2}[/tex]

So, we have:

[tex]\sin(x) = \frac{1}{2}[/tex]           [tex]\cos(x) = \frac{\sqrt 3}{2}[/tex]

[tex]\cos(y) = \frac{\sqrt 2}{2}[/tex]        [tex]\sin(y) = \frac{\sqrt2}{2}[/tex]

[tex]\tan(x) = \sin(x) \div \cos(x)[/tex]

[tex]\tan(x) = \frac{1}{2} \div \frac{\sqrt 3}{2}[/tex]

Rewrite as:

[tex]\tan(x) = \frac{1}{2} * \frac{2}{\sqrt 3}[/tex]

[tex]\tan(x) = \frac{1}{\sqrt 3}[/tex]

Rationalize

[tex]\tan(x) = \frac{\sqrt 3}{3}[/tex]

Similarly

[tex]\tan(y) = \sin(y) \div \cos(y)[/tex]

[tex]\tan(y) = \frac{\sqrt 2}{2} \div \frac{\sqrt 2}{2}[/tex]

[tex]\tan(y) = 1[/tex]

Lastly,

[tex]\tan(x + y)= \frac{\tan(x) + \tan(y)}{1 - \tan(x) \cdot \tan(y)}[/tex]

[tex]\tan(x + y)= \frac{\frac{\sqrt3}{3} + 1}{1 - \frac{\sqrt3}{3} \cdot 1}[/tex]

[tex]\tan(x + y)= \frac{\frac{\sqrt3}{3} + 1}{1 - \frac{\sqrt3}{3}}[/tex]

Combine fractions

[tex]\tan(x + y)= \frac{\frac{\sqrt3+3}{3}}{\frac{3 - \sqrt3}{3}}[/tex]

Cancel out 3

[tex]\tan(x + y)= \frac{\sqrt3+3}{3 - \sqrt3}[/tex]

Using a calculator

[tex]\tan(x+y) = 3.73[/tex]

This method adds newValue to the list at the specified index. If the index is invalid for the list, throw an IndexOutOfBoundsException. Note that the last valid index is the size of the list; this would mean adding to the back of the list. Call any existing methods of LinkedList and LLNode as needed.

Answers

Answer:

i dont know

Explanation:

6. Where all controls are lie
a) Properties b) Toolbox c) Solution Explorer d) Files

Answers

Answer:

I think b is correct answer.

Consider a DataFrame named df with columns named P2010, P2011, P2012, P2013, 2014 and P2015 containing float values. We want to use the apply method to get a new DataFrame named result_df with a new column AVG. The AVG column should average the float values across P2010 to P2015. The apply method should also remove the 6 original columns (P2010 to P2015). For that, what should be the value of x and y in the given code?

Answers

Answer:

x = 1

y = 1

Explanation:

The apply method has the axis argument which enables it to use the applied function either across the rows or columns, by passing the value 1 to the axis argument, the mean of at each index is calculated, (across the column) such that the length of the AVG column is equal to the lengtb of the original dataframe.

The drop method is used in pandas to remove row or column entry from a dataframe. To remove columns from a data table, the value 1 is passed to the axis argument of the drop method. Hence, passing 1 to the axis argument removes all 6 columns leaving only the AVG column in result_df.

Write a pseudocode For loop that displays all the numbers from 0 to 5, one at a time. We have the following pseudocode so far. Declare Integer number Write this statement Display number End For Type the exact text for the line of pseudocode that should replace Write this statement shown above.

Answers

Answer:

The statement is:

For number = 0 to 5

Explanation:

Given

The incomplete pseudocode

Required

The loop statement to complete the pseudocode

To loop from 0 to 5, we make use of:

For number = 0 to 5

Where:

number is the integer variable declared on line 1

So, the complete pseudocode is:

Declare Integer number

For number = 0 to 5

Display number

End For

In order to print multiple worksheets, what needs to happen before printing?

Answers

Answer:

Explanation:

Click the File tab.

Click Print, or press the control p keyboard command.

On the Print screen, select the printer and other settings.

Click Print.

explain computer coding in an understandable manner​

Answers

Answer:

Coding is simply how we communicate with computers. Code tells a computer what actions to take, and writing code is like creating a set of instructions

Explanation:

Computer coding empowers kids to not only consume digital media and technology, but to create it. Instead of simply playing videogame or envision what their own website, or app might look like and they'll have the outlet for the expression

26. The
operator will cause a record to
be selected only if two or more
conditions are satisfied
In MS access

Answers

Answer:

AND

The  AND operator will cause a record to  be selected only if two or more

conditions are satisfied.

In database a record is also called a

Answers

Explanation:

hope it helps you

pls mark this ans brainlist ans

What is true about the pivot in Quicksort? Group of answer choices After partitioning, the pivot will always be in the center of the list. After partitioning, the pivot will never move again. Before partitioning, it is always the smallest element in the list. A random choice of pivot is always the optimal choice, regardless of input.

Answers

Answer:

The pivot is selected randomly in quick sort.

How to overcome software quality dilemma

Answers

Explanation:

anytime software and business come together there is an inherent conflict between get it done fast and do a good job

will social media lose its relevance?​

Answers

Judging from it's prevalence and popularity, there will be a long way to go until people start to lose interest with expressing themselves online. So no, social media will not lose its relevance, but maybe when technology is dead, then it will.

You have n warehouses and n shops. At each warehouse, a truck is loaded with enough goods to supply one shop. There are m roads, each going from a warehouse to a shop, and driving along the ith road takes d i hours, where d i is an integer. Design a polynomial time algorithm to send the trucks to the shops, minimising the time until all shops are supplied.

Answers

Following are the steps of the polynomial-time algorithm:

Split the routes according to their categorizationAssuming that mid = di of the middle road, low = road with the least di, and high = road with the highest di, we may do a binary search on the sorted list.All shops must be approachable only using these roads for every road, from low to mid.Check if all shops can be reached from[tex]\bold{ low \ to\ mid+1}[/tex] using only these roads.There is a solution if every shop can be reached by road only up to [tex]\bold{mid+1}[/tex], but not up to mid.You can [tex]\bold{set \ low = mid+1}[/tex] if all businesses aren't accessible using both [tex]\bold{mid\ and\ mid+1}[/tex] roads.If every shop could be reached using both mid and mid+1, then set high to mid-1.With these layouts of businesses and roads, no response can be given because [tex]\bold{ low > high}[/tex]You can do this by [tex]\bold{set\ mid = \frac{(low + high)}{2}}[/tex]The new low, mid, and high numbers are used in step (a).

In a minimum amount of time, this algorithm will determine the best strategy to supply all shops.

Learn more:

polynomial-time algorithm: brainly.com/question/20261998

explain the working principle of computer? can anyone tell​

Answers

Answer:

input process and output hehe

Mobile computing is growing in importance each and every day, and the IT manager must take that into account. Do some web research and develop a one-page description of the five most important things about HCI of mobile computing that the IT manager should know.

Answers

Answer:

phone grows everyday 82 percent

Explanation:

Fasilitas untuk pengaturan batas kertas pada Microsoft Word adalah….

a. Margin
b. View
c. LayOut
d. Paragraph

Office 92 sering disebut juga dengan….

a. Office 3.0
b. Office 7.0
c. Office Xp
d. Office 2.0


Answers

Fasilitas untuk pengaturan batas kertas pada Microsoft Word adalah

B.View

Office 92 sering disebut juga dengan

A.Office 3.0

what are the functions of language in logic?​

Answers

Answer:

Three basic functions of language: Informative, Expressive, and Directive Language

Informative language. Simply put, informative language can be looked at as though it is either right or wrong, or true or falseExpressive languageDirective language

A sinewave has a period (duration of one cycle) of 645 μs. What is the corresponding frequency of this sinewave, in kHz, expressed to 3 significant figures?


please help me figure this out I am so confused

Answers

The corresponding frequency of this sinewave, in kHz, expressed to 3 significant figures is: 155 kHz.

Given the following data:

Period = 645 μs

Note: μs represents microseconds.

Conversion:

1 μs = [tex]1[/tex] × [tex]10^{-6}[/tex] seconds

645 μs = [tex]645[/tex] × [tex]10^{-6}[/tex] seconds

To find corresponding frequency of this sinewave, in kHz;

Mathematically, the frequency of a waveform is calculated by using the formula;

[tex]Frequency = \frac{1}{Period}[/tex]

Substituting the value into the formula, we have;

[tex]Frequency = \frac{1}{645\; * \;10^{-6}}[/tex]

Frequency = 1550.39 Hz

Next, we would convert the value of frequency in hertz (Hz) to Kilohertz (kHz);

Conversion:

1 hertz = 0.001 kilohertz

1550.3876 hertz = X kilohertz

Cross-multiplying, we have;

X = [tex]0.001[/tex] × [tex]1550.39[/tex]

X = 155039 kHz

To 3 significant figures;

Frequency = 155 kHz

Find more information: https://brainly.com/question/23460034

Which are the best networking projects for a final year student in college

Answers

Answer:

The best networking project for a final year are Security issues with mobile IP.IP based patients monitoring systems.

A _______ read inputs the first data item from a file. It typically appears immediately before the loop that processes the data from the file and inputs the remaining data from the file.

Answers

Answer:

the answer is priming read

Explanation:

hope it helps u

Arrays are commonly used to store data items. Arrays can be managed in ways that fill, iterate over, add to, and delete items from the array. Why is it useful to store multiple pieces of information?

Answers

Answer:

mark me brainlist

Explanation:

How can an IS managers keep up with the endless demand for more software to support new information systems​

Answers

An IS manager can keep up with the endless demand for more software to support new information systems by thinking outside the box.

To think outside the box, the IS manager should try the following strategies:

Use predetermined application components that are operating on low-code or no-code platforms.Use better software-testing practices and tools that spread programming into small sprints.Engage in shift-left testing, which enables software-testing to be done at every phase of the development process.Involve product managers and business users at the beginning of software development, making them to drive innovation that satisfies their requirements.Finally, the IS manager can utilize AI and Machine Learning to speed up the development of required software, thereby enhancing its qualities and capabilities with reduced time and costs.

Thus, the IS manager must realize that there are always solutions to every software problem outside the mainstream box.

Learn more about information systems here: https://brainly.com/question/1521627

Where does change management play a major role in transforming a client
business into a data-driven, intelligent enterprise?

Answers

To manage a modern IT environment characterized by hybrid complexity and exponential data growth — and to make that same IT a driver of growth and innovation for the business — you need to build intelligence into every layer of your infrastructure.

Change management plays a major role in transforming a client  business into a data-driven, intelligent enterprise in: data culture and literacy.

Data culture and literacy refer to all the processes involved in analyzing and understanding data within the framework of an organization.

The employees within such organizations are trained to read and understand data. It becomes a part of the organization's culture.

So data culture and literacy should be used when trying to transform a client  business into a data-driven, intelligent enterprise.

Learn more about data culture here:

https://brainly.com/question/21810261

Other Questions
Been stuck on this since yesterday !!?!? Help!!! , is this all correct please help me 4571119?a. 41b. 35c. 23d. 29 "Find the area and the circumference of a circle with diameter of 8m" The company has net sales revenue of $3.6 million during 2018. The company's records also included the following information: Assets 12/31/17 12/31/18 Property, plant and equipment $ 2.3 million $ 2.5 million Licensing agreements $ 0.5 million $ 0.4 million Goodwill $ 0.3 million $ 0.3 million Investments $ 0.4 million $ 0.5 million What is the company's fixed asset turnover ratio for 2018 The input sin(20) is sampled at 20 ms intervals by using impulse train sampling: i. Construct the input and sampled signal spectra. The postwar policy of the United States known as Containment wasdesigned toO overthrow dictatorships.O reunify GermanyO prevent the spread of communism. The Berlin Conference dividedVAFRIQUEIndia AntarcticaArizonaAfrica A triangle has base of 7 1/8 feet and height 6 1/4 feet. Find the area of a triangle as a mixed number. brianna practices the panio 30 minutes each day write an expression for the number of hours she practises in d days Read the paragraph. Then answer the question that follows.Perhaps you wanted pizza for dinner, but were out voted by the rest of the family who wanted chili. This is similar to what happens in a community. One person has to give up a right for the good of the group. Sometimes citizens' duties and rights conflict with each other. A good example is a public protest. People have the right to meet in groups and share ideas. However, a protest can disrupt traffic or other normal activities. A city must provide extra police protection to keep people safe. Therefore, the city has the right to require permission in advance for a protest. Government must make laws to balance the rights of individuals and different groups of people.Which of the following statements best describes this paragraph? The paragraph contains categories of comparison. The paragraph contains a simile. The paragraph contains no text connections. The paragraph contains an analogy. Is u=12 a solution of 8u1=6u? ASAP!! Please help me out here WHAT IS ONE OF THE MOST IMPORTANT FUNCTIONS OF ANY LEGAL SYSTEM? Evaluate the expression (2x over xy ) for x = 4 and y == 2. 11. What is "the hook" in a Whats is the hook in a text?the final paragraphwhat gets the reader's attentionthe ways ideas developthe way the text is organized o Introduce yourself in a complete sentence in Spanish.o State one sentence using the correct form of the verb estar and two prepositions todescribe the location of your country (Chile, Ecuador, or Peru) from your trip. (e.g., Chile isin South America, to the left of Argentina and below Bolivia and Peru.)o State one sentence using the correct form of saber + que to state a fact you know aboutthe weather in one of the points of interest from your trip. (e.g., After my trip, I know that inthe Atacama Desert, it is sunny and hot.)o State one sentence using the correct form of the verb conocer to describe a place in acity from your trip and use ser with an adjective to describe it. (e.g., I know the village ofPuerto Varas and it is elegant.)o State one sentence using the correct form of the verb sentirse and one emotion to sayhow you feel now that you are home from your dream vacation. (e.g., I feel very happyabout my trip.) Antigone and Ismene heard with horror what Creon had decided. To Ismene, shocking as it was, overwhelming her with anguish for the pitiful dead body and the lonely, homeless soul, it seemed, nevertheless, that nothing could be done except to acquiesce [to accept without protest]. She and Antigone were utterly alone. All Thebes was exulting that the man who had brought war upon them should be thus terribly punished. "We are women," she told her sister. "We must obey. We have no strength to defy the State." "Choose your own part," Antigone said. "I go to bury the brother I love.""The Royal House of Thebes""Is it not better to be poor and free than to have great wealth and be slaves?" she [Boadicea] asked. "And the Romans take not only our freedom but our wealth. They want to make us both slaves and beggars. Let us rise. O brothers and sisters, let us rise, and drive these robbers out of our land! Let us kill them every one! Let us teach them that they are no better than hares and foxes, and no match for greyhounds! We will fight, and if we cannot conquer, then let us dieyes, every one of usdie rather than submit.""The Story of a Warrior Queen"How do the archetypes in these passages support the universal theme that one's values are worth risking one's life for?Both Antigone and Boadicea are warriors who decide to go to war for what they believe is right.Both Antigone and Boadicea are heroes who go to battle against their enemies.Both Antigone and Boadicea are heroines who choose their values over their lives, knowing they may die in the process.Both Antigone and Boadicea are villains who transgress the law in order to fight for their values. State the domain and range of the following function:{(- 3,4), (0,6), (2, - 2), (1, 3), (6, - 7), (3, 2)} Solve the following formula for a.