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?
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
Plz I need help this example in java
Answer:
The following program is written s=usinh java programming language;
Because of the length of the program, comments are used to explain some lines. So, you have to pay attention to the comments too.
public class Armstrong0_500
{
public static void main(String [] args)
{
//Declare and initialize num variable to 0
int num = 0;
//Call Armstrong method
Armstrong(num);
}
//Define Armstrong method
public static boolean Armstrong(int num)
{
//This is the heading
System.out.println("Armstrong Numbers\t\tDifference between Successive Armstrong Numbers");
int nums; //This is used to represent digits from 0 to 500
//Initialize old_Arms and new_Arms to 0
int old_Arms =0; int new_Arms = 0;
//Initialize counter
int count = 0;
while(count<=500)
{
nums = count;
//The next variables are useful;
//temp is used to store temporary values
//value is used to store the cube of individual integer that makes up a number
//remain is used to store remainder after division
int remain;
int temp;
int value = 0;
temp = nums;
//Check individual digit of each number
while(nums > 0)
{
//Get remainder
remain = nums%10;
nums/=10;
value+=Math.pow(remain,3);//Find cube of number
}
if(temp == value) //Check if number is armstrong
{
new_Arms = value;
old_Arms = new_Arms - old_Arms;
System.out.println(value+"\t\t\t"+old_Arms);//Print Valid Armstrong Number
old_Arms = value;
}
count++;
}
return true;
};
}
See Attachment for Program file
What does a production possibilities curve represent?Which of the following statements are true? Economic stability means fair distribution of goods in an economy. Full employment is a macroeconomic goal. Inflation is a fall in the prices of goods and services. Inflation is a rise in the prices of goods and services. Microeconomics studies the economy as a whole.
Answer:
What does a production possibilities curve represent?
The Production Possibilities Curve (PPC) is a model used to show the tradeoffs associated with allocating resources between the production of two goods. The PPC can be used to illustrate the concepts of scarcity, opportunity cost, efficiency, inefficiency, economic growth, and contractions.
Which of the following statements are true?
Full employment is a macroeconomic goal.
Answer:
Full employment is a macroeconomic goal.
Inflation is a rise in the prices of goods and services.
Explanation:
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?
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 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
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.Read more at; https://brainly.com/question/14135636
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
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
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?
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.
For which programming task would you use a for loop?
A. Computing the average of a list of integers of unknown length
B. Counting the vowels in a document of unknown length
C. Generating a list of the anagrams in a word Printing a specified number of integers in a list
D. Printing a specified number of integers in a list
Answer:
A. Computing the average of a list of integers of unknown length
Software that interprets commands from the keyboard and mouse is also know as the
Answer:
The answer is option c
operating system
Hope this helps.
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
Answer:
It will be as 600 square feet is the most satisfying
Answer:
Your answer option is C) 600
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
Which of the following is NOT a safe skill you can use to reduce your risk
when driving at night?
A. Use your headlights between sunset and sunrise.
B. Drive more slowly at night.
C. Adjust your rearview mirror for night use.
D. Always use your high beams
E. A, B, and C
F. All of the above
Answer:
D. Always use your high beams
Explanation:
D because high beams can blind incoming drivers, and cause crashes.
Answer:
I would say driving more slowly at night
Explanation:
When you drive slowly at night this causes accidents when someone is either speeding or not paying attention to the road....They could run into you.
What is the area of rectangle URST?
24 mm
48 mm
135 mm2
144 mm2
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
List of all the storage devices that you use for storing your school projects and assignments then state the reason you chose these devices for storing data
Answer:
I use my oldest computer to store my information
Explanation:
I use my old computer to store things because it does not function properly such as taking a slow time loading or shutting down completely so I use it to store my data.
Answer:
(Answers may vary.)
I usually use both magnetic storage and optical storage devices for storing my project and assignment work. Here are some of the devices I use to store data:
hard disks
pen drives
compact disks (CDs)
digital video disks (DVDs)
USB flash drives
I primarily use hard disks to store data related to my project and assignment work because they provide a large storage capacity. My project and assignment files are usually large and therefore require large storage space. Sometimes, I use pen drives for storing my work. Although pen drives store less data than hard disks, they weigh less and it is easy for me to carry them around when I travel. My project and assignment work also includes video files of events and audio files of recorded interviews. I use CDs and DVDs to store these audio and video files, because they provide large storage capacities and are lightweight and affordable. I sometimes illustrate the text in my files with relevant photographs from my camera, which has a built-in USB flash drive, in my projects and assignments.
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
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).
Tech A says that no matter which way the vehicle turns, the inside wheel must always turn less sharply than the outside wheel. Tech B says that the
Ackermann principle angles the steering arms toward the center of the rear axle. Who is correct?
A Tech A
B Tech B
C Both A and B
D Neither A nor B
The Ackermann level of a vehicle's steering geometry is expressed as a percentage, with 100% Ackermann denoting that the angle of steer difference between the inside and outside tyres exactly matches the geometric low-speed turn center. Ackermann or Anti-Ackermann are rarely used in full force in racing vehicles. Thus, option B is correct.
What Ackermann principle angles the steering arms?In the picture on the left, the steering arms are slanted inward to provide a way for the wheel angles to change more slowly. This causes the wheels to turn at an uneven angle and is the basis of the Ackerman Steering Principle.
As you turn the wheel, the steering wheel's shaft also revolves. This then rotates the pinion, which is situated on top of the rack. While the tie rod is moved by the rotation of the pinion, the rack moves linearly. The tie rod connected to the steering arm then causes the wheel to revolve.
Therefore, Ackermann principle angles the steering arms toward the centre of the rear axle.
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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
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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Which of the following is a negative effect of the rise in agricultural technology following World War II?
Answer:
environmental degradation
Explanation:
Which option lists the correct steps to apply a style?
A. Select the text, click the Home tab, and in the Styles Gallery, click to select a style to apply.
B. Select the text, click the Insert tab, and in the Formatting Gallery, click to select a style to apply.
C. Select the text, click the Home tab, and in the Font group, select a font, font size, and type to apply.
D. All of the options listed above are correct.
Answer:
B
Explanation:
just took the test
Answer:c
Explanation:
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.
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
Answer:
A D E are the right answers
Explanation:
what do u guys think of the coronavirus? and how has it affected ur life? thank you! :) :3
Lower doses blank causes confusion and memory loss and hallucination
What Editing software can i download on Computer to edit my videos?
Answer: i personally use Filmora9.... Wondershare offers three different plans for Filmora9. The annual plan costs a reasonable $39.99 per year (about £30, AU$60, currently on sale, down from $49.99), while the lifetime plan costs a one-off fee of $59.99 (about £45, AU$90, down from $69.99).
Explanation: also, if you have an iPhone you should use iMovie.. it's very easy to use.. i started out with it!! and no cost!!!
Answer:
I use Filmore9 you can also download blue stacks and download IMovie and other things to edit too
Explanation:
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
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("");
}
When entering data in Access if the data is entered using an Access form, that data is stored in a table or tables. TRUE FALSE
Answer:
The answer is true, the data is stored in tables.
Plz help me in this example
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
Dell XPS 15 or MacBook pro 13?
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.
Meghla has brought a smartphone with length is 4 unit and breadth is 3 unit, what is the screen size of the smartphone
Answer:
[tex]12unit^2[/tex]
Explanation:
Assuming that the screen covers the entire area of the smart phone.
[tex]3 * 4 = 12 unit^2[/tex]
Most likely this wouldn't be the case, so the screen size would be at most [tex]12unit^2[/tex]
[tex]0unit^2<size < 12unit^2[/tex]
And would most likely fall under this range of answers.
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 !!
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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