Q‒1. [2×10 marks] In the questions below suppose that a “word” is any string of seven letters of the alphabet, with repeated letters allowed.
a) How many words begin with R and end with T?
b) How many words begin with A or B?
c) How many words begin with A or end with B?
d) How many words begin with A or B and end with A or B?
e) How many words begin with A or B or end with A or B?
f) How many words begin with a vowel and end with a vowel?
g) How many words begin with a vowel or end with a vowel?
h) How many words begin with AAB in some order?
i) How many words have no vowels?
j) How many words have exactly one vowel?

Answers

Answer 1

Answer:

Kindly check attached picture

Explanation:

Number of alphabets = 26

Number of vowels = 5

Number of strings in word = 7

A)How many words begin with R and end with T

First and last has been filled, positions left to fill : 7 - 2 = 5

26^5 = 11881376

B) How many words begin with A or B

First letter can begin with either A or B

Position left to fill = 7 - 1 = 6

2 options for first letter

2 × (26^6) = 617831552

C.) How many words begin with A or end with B

26^6 + 26^6 - 26^5 = 605950176

D.) How many words begin with A or B and end with A or B

Last and first positions have been filled either with A or B

Positions left to fill = 7-2 = 5

4 × (26^5) = 47525504

E) How many words begin with A or B or end with A or B?

(2 × 26^6 + 2 × 26^6 - 4 × 26^5) = 1188137600

f) How many words begin with a vowel and end with a vowel?

2^5 = 32

g) How many words begin with a vowel or end with a vowel?

(5×26^6) + (5×26^6) - (10×26^5) = 2970344000

h) How many words begin with AAB in some order?

AAB = 3 letters

Positions left to fill = 7 - 3 = 4

3 × 26^4 = 1,370,928

i) How many words have no vowels?

26 - 5 = 21 ; 21^7 = 1801088541

j) How many words have exactly one vowel

Number of words × number of vowels × (number of alphabets - number of vowels) ^ number of positions left to fill

7 × 5 × (21^6) = 3001814235


Related Questions

While working on a group project, you notice something does not look right in the presentation. You call a meeting with your team. At the meeting, everyone works together to identify what is missing, define what needs to be done, and assign tasks.
What is this called?

Answers

Answer:

Teamwork

Explanation:

in javascript, what can I put after player. to make my character go in the center of the screen? like example:

to put it at the bottom of the screen you put player.bottom(): to put it to the right of the screen you put player.right(): please help me i will mark brainlyest for the 1st correct answer

i need to put my character in the center of the screen

Answers

Answer:

0,0

Explanation:

you could try to use the x-axis and y-axis to put your character in a certain place. I'm not totally sure if that is how javascript works, but for the x-axis and y-axis, the center is always(0,0).

Lower doses blank causes confusion and memory loss and hallucination

Answers

The guy above me is correct use him or her :)

Writa function to read content from "Zone. txt" and write it into another file "zone1. txt" by reversing each line if the line starts with A​

Answers

Answer:

You have specified no language. Here's an algorithm to follow with most platforms, my example is in NodeJS

const fs = require('fs');

let zone = fs.readFile('Zone.txt', 'utf8', function (err, data) {

 if (err) throw new Error(err);

 data = data.toString(); //convert the buffer to a string

 let lines = data.split("\n"),

       content = [];

 for (i in lines) {

   let l = lines[i];

   if (l.toLowerCase().startsWith("a")) l = reverseString(l);

   content.push(l);

 }

 content = content.join("");

 fs.writeFile('zone1.txt', content, , function (err) {

   if (err) throw new Error(err);

 }

});

function reverseString (str) {

   return str.split("").reverse().join("");

}

What are some of the current trends in fashion?
For women,____tote bags and high-heeled sandals are popular now. For men, ____colors are the new trend. Bomber jackets and prints are also a fad among ____.

1.oversized
Tattered
Pocket sized

2.muted
Pastel
Bright

3.men
Women
Children

Answers

Answer:

1. pocket sized

2. muted

3. children

Full Paragraph :

For women, pocket sized tote bags and high-heeled sandals are popular now. For men, muted colors are the new trend. Bomber jackets and prints are also a fad among children.

Yeah that's basically the new trends in fashion. =v=  

I think its oversized, bright and men but i may be wrong sorry

There are several vehicles in a parking lot. Some of them are motorcycles
(with 2 wheels), and some are cars (with 4 wheels). There are 11 vehicles in
the lot, and there are 34 wheels. How many vehicles of each type are in the
lot?
O A. 7 motorcycles and 5 cars
B. 5 motorcycles and 6 cars
C. 6 motorcycles and 5 cars
D. 4 motorcycles and 7 cars​

Answers

Answer:

The answer is 34.

Explanation:

Look at the pic.

Answer:

B

Explanation:

5*2=10

6*4=24

24+10=34 wheels

5+6=11 vehicles

pls mark brainliest

What process is a project manager doing when she or he defines and documents the stakeholders' needs to meet the project objectives?

Answers

The person is organizing the docs

Organisms are classified as producers or consumers acorrding to the way they
A)obtain
B)release wastes
C)produce offspring
D)move from place to place

Answers

A)obtain
as the rest are irrelevant to the given options and cannot be classified as release waste produce offspring or move from place to place are classifications of biotic or abiotic

Explain how Icd 10 cm codes can help identify a patient’s health conditions?

Answers

The ICD-10-CM (International Classification of Diseases, Tenth Revision, Clinical Modification) is a system used by physicians and other healthcare providers to classify and code all diagnoses, symptoms and procedures recorded in conjunction with hospital care in the United States

9. Alcohol begins to affect your brain
O With the first drink
O Depending upon what you have eaten that day
Only if you are drinking under-aged
O After the second or third drink

Answers

Answer:

With the first drink

Explanation:

7

A CD holds 650 MB of data. A DVD holds 4 GB of data. How many CDs would you need

to equal one DVD

Answers

Answer:

Number of CDs = 7

Explanation:

We know that

1 GB = 1024 MB

So it means the 4 GB of data can be interpreted as:

4 GB = 1024*4 MB

4GB = 4096 MB

So a DVD hold 4096 MB of data while a CD holds 650 MB of data.

We need to find how many CDs could hold 4096 MB of data, to make it equivalent to a DVD

Number of CDs = 4096/650

Number of CDs= 6.3

As a CD can not be 0.3, a whole 1 CD will be used.

Number of CDs = 7

1. The precious metals needed to make computer chips, graphic cards, and transistors are found in only a small population of countries. What economic implications does this have for the countries that have these metals to mine?

Answers

Answer:

it means that they can charge companies to come mine it making them more wealthy they can also upscale the materials needed to make it as they are the only countries that sell it so they have no one to compete with

According to data from the UN, China produces the most semiconductor chips worldwide. China has developed into a significant worldwide production hub for microelectronics, and the electronics value chain, which encompasses consumer electronics and ICT, has become more regionalized over time.

Which industries are affected by chip shortages?

Numerous industries are impacted by the scarcity of semiconductor chips, including automotive, data centers, video games, and others. You probably learned about the global scarcity of semiconductor chips or were personally impacted by it if you were considering buying a new or used car over the past 18 months.

In 2021, experts predict that the worldwide chip shortage will cost the American economy $240 billion. The Commerce Department reports that some American manufacturers have inventory that is only good for a few days. A chip scarcity is generating major problems at Optimal Design, which is located near Chicago.

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what do u guys think of the coronavirus? and how has it affected ur life? thank you! :) :3

Answers

hella annoying anyways it's effected a lot of things, for example me not being able to see my friends and me not being able to get proper education
I believe the virus is a man made disease , because every 100 years on the year 20 a new deadly virus is shown. It has affected my life bc it has forced me to stay home. Allowing my anger issues to spiral more and my anxiety to spiral more.

waste water cannot be reversed? f or true​

Answers

Answer:

yes

Explanation:

Recycling, reducing waste and reusing can prevent pollution, because it reduces the need to harvest new, raw materials. It can also help reduce greenhouse gas emissions , save energy and allows products to be used to their fullest extent while reducing waste.

Answer:

true

Explanation:

An employee believes there is an imminent danger situation at her workplace. She contacts OSHA to report the safety hazard. Her employer finds out that she has reported the issue and threatens to fire her. Which of these is a correct statement about the situation?

Answers

Answer:

Here's all I know

Explanation:

OSHA stands for the Occupational Safety and Health Administration, an agency of the U.S. Department of Labor. OSHA's responsibility is worker safety and health protection. The U.S. Congress created OSHA under the Occupational Safety and Health Act of 1970 (the OSH Act). Congress passed the law and established OSHA "to assure so far as possible every working man and woman in the nation safe and healthful working conditions and to preserve our human resources.

OSHA began because, until 1970, there were no national laws for safety and health hazards.

In the story, what are the song pauses a metaphor for?
O A. The necessity of pausing before speaking
B. The idea that life is reflected in song lyrics
C. The idea that making rock music is tiring
D. The need to slow down more often in life
Need help ASAP !!

Answers

Answer:

D. The need to slow down more often in life.

The song pauses as a metaphor for the need to slow down more often in life. Thus, the correct option for this question is D.

What is Metaphor?

A metaphor may be characterized as a type of figure of speech that significantly elaborates an object or action in a way that is not literally true but still helps in explaining an idea or constructing a comparison. It generally involves the sense of comparison between two objects.

According to the context of this question, the song pauses as a metaphor for representing the aspect of slowing down things more often in life. This is because it involves the sense of comparison which eventually slows down the process at its actual rapid pace.

Therefore, the song pauses as a metaphor for the need to slow down more often in life. Thus, the correct option for this question is D.

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What are some ways to change column width? Check all that apply.
clicking and dragging the border between the column names
clicking and dragging the column letter
double-clicking a column, clicking Width, and then clicking OK
selecting a column, clicking the Format drop-down list in the Cells group, and then clicking AutoFit Column Width
right-clicking a selected column, clicking Column Width, typing the width in numbers, and clicking OK
selecting a column, clicking the Width drop-down list in the Format group, and then clicking AutoFit

Answers

Answer:

A D E are the right answers

Explanation:

vectors
Pre-Test
Active
1
2
3
4
5
6
THE REMAINI
24:13
Two vectors, X and Y, form a right angle. Vector X is 48 inches long and vector Y is 14 inches long. The length of the resultant
vector is
inches.​

Answers

Answer:

[tex]c { }^{2} = a ^{2} +b {}^{2} [/tex]

[tex]c {}^{2} = 48 {}^{2} + 14 {}^{2} [/tex]

[tex]c {}^{2} = 2304 + 196[/tex]

[tex]c {}^{2} = 2500[/tex]

[tex]c = 50[/tex]

An item with both magnitude and direction is referred to be a vector. A vector can be visualized geometrically as a directed line segment, with an arrow pointing in the direction and a length equal to the magnitude of the vector.

What is Vector?

The vector points in a direction from its tail to its head. If the magnitude and direction of two vectors match, they are the same vector.

This indicates that if we take a vector and move it to a different point (without rotating it), the vector we finish up with is the same vector we started with.

The vectors that denote force and velocity are two examples. The direction of force and velocity are both fixed. The size of the vector would represent the force's strength or the velocity's corresponding speed.



Therefore, An item with both magnitude and direction is referred to be a vector. A vector can be visualized geometrically as a directed line segment, with an arrow pointing in the direction and a length equal to the magnitude of the vector.

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There are 30 students in Alison's math class. She wants to bring 3 gallons of
juice to the end-of-year celebration. If each gallon of juice costs $5, how
much will Alison spend?
O A. All the information is needed.
B. Alison wants to bring 3 gallons of juice.
O
C. Each gallon of juice costs $5.
D. There are 30 students in Alison's math class.​

Answers

The answer is d there are 30 students in alisions math class and it’s how it goesss

6. One 15 A general-purpose circuit should be installed per how many square feet of floor space?

O A. 750

OB. 400

O C. 600

O D. 500

Answers

Answer:

It will be as 600 square feet is the most satisfying

Answer:

Your answer option is C) 600

Higher resolution images mean they can be enlarged better,
True or false

Answers

Answer:

False

Explanation:

High resolution just mean It looks better

False: Higher resolution images doesn’t mean they can be enlarged better

What is the area of rectangle URST?
24 mm
48 mm
135 mm2
144 mm2​

Answers

Answer:

135 mm²

Explanation:

Rectangles A B C D and U R S T are congruent. The length of sides A B is 9 millimeters and the length of sides R S is 15 millimeters.

What is the area of rectangle URST?

Answer: Two rectangles are said to be congruent if the size of their sides are equal. If Rectangles A B C D and U R S T are congruent, this means that AB = UR, BC = RS, CD = ST and AD = UR

Given that:

AB = 9 millimeters and the length of sides RS = 15 millimeters.  

Area of rectangle URST = length × breadth =  UR × RS

but since ABCD and URST are congruent, UR = AB. Therefore:

Area of rectangle URST = length × breadth =  AB × RS = 9 mm × 15 mm = 135 mm²

Answer:

C 135 MM2

Explanation:

Got it right on edge2020

Dell XPS 15 or MacBook pro 13?​

Answers

Answer:

MacBook Pro 13

Explanation:

Mostly cause of the brand.

And also I have a MacBook pro

Answer:

I think I would pick a MacBook Pro 13

Explanation:

The reason why is because personally I like apple products alot and Im not saying that Dell products are bad but I think apple products are just better. Also they do look the same but its really up to you to decide which brand you like better. If  you had more experince with one brand you might want to stick with it or if you have experinced with both brands you should decide which you liked better.

Vehicle balance________
A. depends on your vehicle operating space
B. cannot be reached
C. is not affected by sudden acceleration
D. varies from vehicle to vehicle

Answers

I would say it’s D.

Vehicle balance varies from vehicle to vehicle. Therefore, option (D) is correct.

What is Vehicle balance?

Vehicle balance refers to the stability of a vehicle while in motion and its ability to maintain control and direction. The balance of a vehicle can be affected by a number of factors, such as the weight distribution, suspension, and tire wear.

The balance of a vehicle varies from vehicle to vehicle and depends on the design, construction and the state of maintenance of the vehicle. Factors such as sudden acceleration, the size of the vehicle and its operating space can also impact the balance of the vehicle. However, it is always important to maintain the balance of the vehicle by regular check ups and maintenance to ensure the safety of the driver and passengers.

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What is the first step in setting paragraph or line spacing and their options?
Find the correct option that suits the situation.
Launch the Paragraph dialog box before doing anything
Select the text you wish to apply the setting to.
O Position the cursor at the beginning of the document.
W
ASAP

Answers

Answer:

Launch the paragraph dialog box before doing anything

The first step in setting paragraph or line spacing and their options is;

Option C; Select the text you wish to apply the setting to.

If we want to set up a paragraph of an existing statement in MS Word, the first thing we have to do will be to identify the particular text that requires the paragraph. This is because we cannot just use the tab key or indent option without a reference for what we want to paragraph.

Similarly, when we want to change the spacing of a text, depending on the spacing you want to use, you have to first select the text in which you want to apply the spacing. This is because if you click on the spacing you want without first selecting the text, the spacing will not be effected on the text you want.

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why is updating your anti-virus a good thing?

Answers

Answer:

Antivirus vendors play a 'cat and mouse' game with malware creators. As malware is discovered definitions are written to discover the program and other programs written in a similar way. If an existing piece of malware is extensively rewritten or a new piece of malware is created, the existing malware definitions are unlikely to detect the program as malicious. This means that antivirus vendors have to find a 'sample' of the new malware being used and create a new definition for it. When you update your anti-virus these malware definitions are downloaded allowing your antivirus to detect this newer malware and keeps your computer secure from these newer threats.

Yes! It helps prevent any virus’s from happening and it’s power would be stronger to keep our viruses

Plz help me in this example

Answers

Answer:

import java.util.*;

public class calcarms

{

public static void main(String [] args)

{

 Scanner input = new Scanner(System.in);

 //Declare Variable

 int num;

 //Initialize num to 0

 num = 0;

 //Print heading

 System.out.println("Armstrong Numbers\t\tDifference between Successive Armstrong Numbers");

 //Call Armstrong method

 boolean result = Armstrong(num);  

}

public static boolean Armstrong(int num)

{

 int nums;

 //Initialize old_Arms and new_Arms to 0

 int old_Arms =0; int new_Arms = 0;

 for(int i = 0;i<=500;i++) //Iterate from 0 to 500

 {

  nums = i;

 int temp,calc = 0;

 temp = nums;  

  //Check individual digit of each number

 while(nums > 0)

 {

  int a=nums%10;  

  nums/=10;

  calc+=(a*a*a);//Find cube of number

 }

 if(temp == calc) //Check if number is armstrong

 {

  new_Arms = calc;

  old_Arms = new_Arms - old_Arms;

  System.out.println(calc+"\t\t\t"+old_Arms);//Print

  old_Arms = calc;      

 }

 }

 return true;  

};

}

Explanation:

Comments are used to explain difficult lines

In which case will the linear search return the lowest value faster than the
binary search?

Answers

Answer:

A linear search is one that scans every record/file until it discovers the value being searched for.

Binary search, on the other hand, is also known as Logarithmic search. It is used to locate the position of a value inside an array that has already been sorted.  

The linear search will return the lowest value faster than the binary search when small arrays are involved.

This will only be feasible when the array is sorted prior.

Cheers!

Software that interprets commands from the keyboard and mouse is also know as the

Answers

Answer:

The answer is option c

operating system

Hope this helps.

C; operating system :) hw

Which method is the quickest for removing multiple different indent types applied to a paragraph?
O Drag the left and right indent markers back to their respective positions against the page margins.
O Launch the Paragraph djalog box and clear the values for the left and right indents and set Special indents to "none."
O Press Ctrl+Q on your keyboard to clear paragraph formatting.
O Click the indent markers and drag them off the horizontal ruler.
Mark this and retum
Next
Submit ASAP

Answers

Answer:

c

Explanation:

Press Ctrl+Q on your keyboard to clear paragraph formatting is the quickest for removing multiple different indent types applied to a paragraph.

What is paragraph?

A paragraph is a self-contained unit of speech in writing that addresses a certain subject or idea. Though paragraphs are not needed by the orthographic standards of any language with a writing system, they are a common way of structuring long portions of prose. The earliest classical British and Latin writing was boustrophedon, with little or no gap between words. Text direction (left to right) became standardised over time, as did word dividers and terminal punctuation.

To delete the paragraph's formatting, press Ctrl+Q. The Ctrl+Q key in various programmes can be used to terminate the programme or close the programme window. To utilise the keyboard shortcut Ctrl+Q, press and hold either Ctrl key on the keyboard, then press the "Q" key with either hand while continuing to hold.

So, C is correct.

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