Prove the following using the specified technique:A) Letxandybe two real numbers such thatx yis rational. Prove by contrapositive that ifxis irrational, thenx−yis irrational.B) Prove by contradiction that for any positive two real numbers,xandy, ifx·y≤50, theneitherx <8 ory <8.

Answers

Answer 1

Answer:

Following are the solution to this question:

Explanation:

In point A:

The predicate of the whole argument is if x+y is rational and x-y is reasonable, then x is reasonable as well" To see the sum of the two logical estimates is often sound. Let us be two real [tex]\frac{p}{9}[/tex] .rs amount then seeing how.  

[tex]\frac{p}{q}+\frac{r}{s} = \frac{(ps+rq)}{qs}[/tex] is logical, too. x Thus if[tex]x + y[/tex] is logical and [tex]x- y[/tex] is true, then [tex]x + y +x- y = 2x[/tex] should be sound.  

Let's assume [tex]2x=\frac{p}{q}.[/tex] Therefore the rational [tex]x=\frac{p}{2q}[/tex]proves the necessary statement in the query.  

In point A:

Let [tex]x \cdot y \leq 50 \ and \ x \geq 8, \ but \ \geq 8 \\\\[/tex], both to demonstrate it through contradiction. So,[tex]x \cdot y \geq 8\cdot 8 = 64[/tex]. This implies that both [tex]x \cdot y \ and \ \leq 50 \ and x \cdot y \ and \geq 64[/tex] are valid in the very same period. The argument is valid.


Related Questions

Johnson wants to load Solver in Microsoft Excel. For this, he clicks the series: File > Options > Add-Ins > Manage Box > X > Go > Add-ins available box > Solver Add-in check box > OK. What can X be in the procedure?A) COM Add-ins
B) Excel Add-ins
C) Disabled Items
D) XML Expansion Packs

Answers

Answer:

B) Excel Add-ins

Explanation:

Some Excel functions are available only when the add-in is installed. For example, the Analysis ToolPak or the Solver Add-in is not available in standard ribbons, you must install the add-in before you can use it.

Microsoft offers downloadable add-ins in each software of its Office suite, much like applications on mobile platforms. Here are some examples and how to install these add-ins.

These add-ins were introduced with the 2013 version of Office. Microsoft called them “Applications”. Since Office 2016, Microsoft has called them “Add-ins”. These are actually extensions (or add-ons) to Office.

Excel add-ins are useful because they help to maximize its functionality across various platforms.

This series of steps explain how to add Excel add-ins by using Solver.

To install the add-in, follow these steps:

1. On the File tab, click Options:

2. In the Excel Options dialog box, select the Add-ins tab:

3. In the Manage area, select Excel Add-ins, and then click the Go To Button

4. In the Add-ins dialog box, select the check box for each add-in that you want to use:

5. Then, Click on Ok.

Based on the given information about load Solver in Microsoft Excel, X would be the procedure of B:Excel Add-ins.

When add-in is installed, then gives room for some of the Excel functions to be available to use, it was introduced by Microsoft and it helps to maximize some functionality across various platforms.

As Johnson start loading the Solver in Microsoft Excel, He will follow these steps:

Go to File click on Options Add-Ins Manage Box Excel Add-ins and Ok.

We can conclude that the X in the process of using the Solver in Microsoft Excel is Excel Add-ins.

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what is an operating system​

Answers

Answer:

the software that supports a computer's basic functions, such as scheduling tasks, executing applications, and controlling peripherals.

Explanation:

Answer:

nbv

c

.

l

lmmmm

n

pp

Explanation:

p

ll am ll..

Please answer questions 2-12

Answers

Answer:

i never learned that

Explanation:

Pat practices on the keyboard to improve his typing speed. When he typed the sentence It was a rainy day, he missed typing the letter r in the word rainy. Assuming he typed this sentence in a minute, what is Pat’s typing accuracy and error rate?

Answers

Answer:

94.4% Typing accuracy

1 error per minute

Explanation:

The sentence "It was a rainy day" contains five words and 18 characters (including spaces). Therefore, since Pat typed this sentence in a minute then his typing accuracy is

(17 / 18) * 100 = 94.4% Typing accuracy

That is because he typed 17 out of the 18 characters correctly in the sentence. Pat's error rate on the other hand is

1 / 1 = 1 error per minute

This is because in the span of one minute that it took to type the entire sentence Pat only made one error.

Answer:

94.7% and 1 error per minute

Explanation:

It was a rainy day is 19character and he typed 18.

Accuracy is 18/19

Which are accurate statements about how self-reflection affects learning? Check all that apply.
ACDE

Answers

dude show the options to check ‍♂️

How many tables are needed to implement an REA data model that has five distinct entity-sets, two many-to-many relationships and three one-to-many relationships in a relational database?A. 5B. 7C. 8D. 10

Answers

Answer:

B

Explanation:

Im not sure tho so please dont get mad if its wrong

13. In cell A17, use the SUMIF function to display the total membership in 2023 for groups with at least 40 members

Answers

Answer:

On cell G16, type the formula "=SUMIF(G2:G11, ">=40")".

Explanation:

Formulas in Microsoft Excel are used to generate results or values to a cell. The formula must start with an equal sign. The formula above has the function "SUMIF" which is used to provide a sum of numeric values based on a condition.

The SUMIF function in excel combines a condition and a sum of the values which meets the stated condition. Hence, the SUMIF statement required on Cell A17 would be =SUMIF(C1:C50, '>=40')

The sumif syntax goes thus ; SUMIF(row_range, condition)

Assume the total membership count is in the cell A1 to A50.

Cells where the values are greater than or equal to 40 should be summed.

Hence, the required formula would be =SUMIF(C1:C50, '>=40')

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Find io(t) for t > 0 in the network in the circuit. (Hint: 1. Find C equivalent first. 2. This is a First Order System)

Answers

Answer:

hello your question is incomplete attached below is the complete question

answer : [tex]( 2/3 - 8/3 e^{-1.875t} ) In A \geq 0[/tex]

Explanation:

attached below is a detailed solution

Finding  io(t) for t > 0 in the network in the circuit.

[tex]( 2/3 - 8/3 e^{-1.875t} ) In A \geq 0[/tex]

Which best describes what databases do? A.) They guarantee users find needed data B.) they create categories for data. C.) They identify important data. D.) They enable users to search for data.

Answers

Answer:

the answer is c

Explanation:

i rly hope this helps if it does plz may u thank it and rate plz and thank u

Answer:

C

Explanation:

Took the test

Which career qualification is unique to the Energy Transmission career pathway and not to the Energy Distribution pathway? color vision for identifying differences in colored wires critical thinking and reasoning skills for analyzing information stress management for handling urgent tasks mechanical knowledge and ability to drive and operate machinery working well with customers and being friendly

Answers

Answer:

a, c, d

Explanation:

Answer:

it is just A

Explanation:

on edge. unit test review

What is the purpose of an End User License Agreement?
to ensure that software users understand their rights and responsibilities
to ensure that software users understand how to use and install the program
to require users to erase installer files after a software migration project
to license users to make multiple changes to proprietary software

Answers

Answer:

A

Explanation:

The EULA is, in basic terms, a contract between the user and the software's owners that while the user is in possesion of the licensed sofware, that they must follow the guidelines set or risk losing the license.

Answer:

to ensure that software users understand their rights and responsibilities

Explanation:

Hope this helps!

Write an application that calculates the product of a series of integers that are passed to method product using a variable-length argument list. Test your method with several calls, each with a different number of arguments.

Answers

Answer:

The method written in C++ is as follows:

#include <iostream>

#include <stdarg.h>

using namespace std;

int prod(int listsnum,...) {

  va_list mylist;

  int product = 1;

  va_start(mylist, listsnum);

  for (int i = 0; i < listsnum; i++)

     product *= va_arg(mylist, int);

   

  va_end(mylist);

  return product;

}

Explanation:

This line defines the method along with the series of integers

int prod(int listsnum,...) {

This declares the variable-length list using va_list as the declaration

  va_list mylist;

This initializes product to 1

  int product = 1;

This initializes the variable-length list

  va_start(mylist, listsnum);

The following iteration calculates the product of the list

  for (int i = 0; i < listsnum; i++)

     product *= va_arg(mylist, int);

   

This ends the the variable-length list

  va_end(mylist);

This returns the product of the list

  return product;

}

To call the method from the main, make use of:

cout<<"Product: "<<prod(4, 2,3,4,5);

The first 4 in the list indicates the number of items in the list while the 4 other items represents the list elements

You can also make use of:

cout<<"Product: "<<prod(2, 6,5);

use the drop-down menus to complete the statements about using column breaks in word 2016

Answers

1,2,1,3

Explanation:

layout

section

number

more options

The complete statement can be columns and column break are layout feature. Column breaks can be inserted into a section of the document. Under layout tab, one can change the number of columns, and by clicking more options, one can open the column dialog box.

What is layout?

Layout is the process of calculating the position of objects in space under various constraints in computing. This functionality can be packaged as a reusable component or library as part of an application.

Layout is the arrangement of text and graphics in word processing and desktop publishing. The layout of a document can influence which points are highlighted and whether the document is visually appealing.

The entire statement can be divided into columns, and column breaks are a layout feature.

A section of the document can have column breaks. The number of columns can be changed under the layout tab, and the column dialog box can be opened by clicking more options.

Thus, these are the answers for the given incomplete sentences.

For more details regarding layout, visit:

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#SPJ5

The TCP _____ is the amount of information that a machine can receive during a session and still be able to process the data.

Answers

Answer:

transport layer protocol

Explanation:

The full form of TCP is Transmission Control Protocol. It is defined as the standard of establishing and maintaining a network conversation with the help of which the programs can exchange information and data. TCP works with IP or Internet Protocol.

The application programs uses the TCP transport layer protocol to receive data which is in the form of byte streams that contains the information in the commands. TCP is also called as the "connection-oriented" protocol.

Examples of applying successful visual design principles to bring a web page together are _________________. (Choose all that apply)

Question 2 options:

a) balance, contrast, and similarity


b) gestalt, unity, and hierarchy


c) gestalt, scale, and simplicity


d) balance, contrast, and unity


e) balance, control, and dominance

Answers

I think A & D but im note sure but I definitely think A is one of the options

The examples of applying successful visual design principles to bring a web page together include:

a) balance, contrast, and similarityd) balance, contrast, and unity

The importance of visual design is to improve the aesthetic appeal of a product or design by using suitable images, space, layout, color, typography, etc.

It should be noted that balance, contrast, similarity, and unity are important for the application of a successful visual design.

Read related link on:

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what are the two parts of the uniform resource locator

Answers

Answer:

URL - Uniform Resource LocatorProtocol identifier :  indicates what protocol to use. Resource name :  specifies the IP address .

Explanation:

Answer:

The protocol identifier and the resource name

Explanation:

just did it got a 100%... like for more plz

Insert in the Current Values section at the top of the worksheet summary functions that use the range I9:I54. In cell I2, calculate the total of all the Current Values. In cell I3, calculate the average current value. in cell I4, calculate the lowest current value. In cell I5, calculate the highest current value

Answers

Answer:

Cell I2: =SUM(I9:I54)

Cell I3: =AVERAGE(I9:I54)

Cell I4: =MIN(I9:I54)

Cell I5: =MAX(I9:I54)

Explanation:

I wasnt able to find the worksheet referenced, however it is not needed to answer correctly.

The question states there are several values in the cell range I9:I54, and we need to perform different operations:

In cell I2, calculate the total of all the Current Values

To obtain the TOTAL calculation, we use the SUM function for all the range of values

=SUM(I9:I54)

In cell I3, calculate the average current value

Average is calculated with the function named the same

=AVERAGE(I9:I54)

In cell I4, calculate the lowest current value

The lowest value of all the range is found with the MIN function

=MIN(I9:I54)

In cell I5, calculate the highest current value

The highest value of all the range is found with the MAX function

=MAX(I9:I54)

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Java Eclipse homework. I need help coding this
Project 14A - Basically Speaking

package: proj14A
class: TableOfBases

Create a project called TableOfBases with class Tester. The main method should have a for loop that cycles through the integer values 65 <= j <= 90 (These are the ASCII codes for characters A – Z). Use the methods learned in this lesson to produce a line of this table on each pass through
the loop. Display the equivalent of the decimal number in the various bases just learned (binary, octal, and hex) as well as the character itself:
Decimal Binary Octal Hex Character
65 1000001 101 41 A
66 1000010 102 42 B
67 1000011 103 43 C
68 1000100 104 44 D
69 1000101 105 45 E
70 1000110 106 46 F
71 1000111 107 47 G
72 1001000 110 48 H
73 1001001 111 49 I
74 1001010 112 4a J
75 1001011 113 4b K
76 1001100 114 4c L
77 1001101 115 4d M
78 1001110 116 4e N
79 1001111 117 4f O
80 1010000 120 50 P
81 1010001 121 51 Q
82 1010010 122 52 R
83 1010011 123 53 S
84 1010100 124 54 T
85 1010101 125 55 U
86 1010110 126 56 V
87 1010111 127 57 W
88 1011000 130 58 X
89 1011001 131 59 Y
90 1011010 132 5a Z

Answers

Answer:

que es eso no entiendo espero que te respondan

one hex digit is sometimes reffered as

Answers

A Hexadecimal or a Nibble

Which of the following tasks could be implemented as a filter using only a constant amount of memory (e.g., a couple of int or double variables and no arrays)? Mark all that apply.
For each, the input comes from standard input and consists of n real numbers between 0.0 and 1.0.

Print the sum of the squares of the n numbers
Print the maximum and minimum values of the n numbers
Print the percentage of numbers greater than the average of the n numbers
Print the median of the n numbers
Print the average of the n numbers
Print the n numbers in uniformly random order
Print the n numbers in increasing order

Answers

Answer:

Print the sum of the squares of the n numbers

Print the percentage of numbers greater than the average of the n numbers

Print the median f n numbers

Explanation:

The computer programs have different configurations based on the assigned tasks. The constant amount of memory is used by the cache. This is the new technology in the computer software which consumes only small amount of memory and activates once the task is assigned to it.

It is important to understand the different types of DoS attacks and the symptoms of those attacks. Leaving a connection half open is a symptom of which type of attack?

Answers

Answer:

SYN flood attack.

Explanation:

Doing this is a symptom of an SYN flood attack. Attackers performing this type of DoS attack will try and open as many connections as possible but never fully finish the connection. This ultimately causes the system to use all of its computing power to try to resolve these failed connections which would cause the system to crash or become unresponsive. Therefore, denying service to potential clients if done correctly. This is just one of the many types of DoS attacks that exist.

A member function that allows the user of the class to change the value in a data member is known as

Answers

Answer:

an accessor function.

Explanation:

An accessor function can be regarded as"set and get function" it's function are seen in the accesment of private object member, it give room to know the value of instance variable even though it's not in the same class.

It should be noted that member function that allows the user of the class to change the value in a data member is known as an accessor function.

The "persistent interrupt" is a bug in the code that exhibits a behavior that’s similar to an infinite loop. The ISR exits and gets called back immediately an infinite amount of times even though the interrupt event occurred once. The persistent interrupt occurs when three conditions are met. What are these conditions? How do we avoid a persistent interrupt from occurring?

Answers

Answer:

1. the 3 conditions have been listed below

2. to avoid persistent interrupt, we break any of the 3 conditions.

Explanation:

The persistent interrupt occurs when these three conditions below are met.

They are as follows:

1. GIE=1

2. xIE=1

3. xIFT=1

in avoidance of the persistent interrupt from occurring, we break any of these 3 conditions that I have listed above.

in order To break any one of the 3 conditions, we clear the flag that corresponds to the associated

we can also avoid the persistent interrupt occurrence by having the Interrupt Service Routine (ISR) clear maybe one or all of the three bits mentioned above before the ISR terminates, so it wouldn't get called back again. clearing any of the bits will not allow the ISR to be called again.

What is the Big-Oh of the following computation? int sum = 0; for (int counter = 1; counter < n; counter++) sum = sum + counter;

Answers

Answer:

The Big-O notation of the algorithm is O(n)

Explanation:

The declaration and update of the integer variable sum is a constant of O(1). The for loop statement, however, would repeat relative to the size of "n", increasing the counter variable and updating the sum total by the counter.

Find the max and min of a set of values using recursion Find the max and min of a set of values using recursion. First input the values. The first value inputted is the number of additional data items to input. For instance, if the input is: 3 1 2 3

Answers

Answer:

This question is answered using Python programming language

def MaxSet(mylist, count):  

     if (count == 1):  

           return mylist[0]  

     return max(mylist[count - 1], MaxSet(mylist, count - 1))  

def MinSet(mylist, count):  

     if (count == 1):  

           return mylist[0]  

     return min(mylist[count - 1], MinSet(mylist, count - 1))  

count = int(input("Length of set: "))

mylist = []  

for i in range(count):

     inp= int(input("Input: "))

     mylist.append(inp)

   

print("Minimum: "+str(MinSet(mylist, count)) )

print("Maximum: "+str(MaxSet(mylist, count)) )

Explanation:

This defines the recursion that returns the maximum

def MaxSet(mylist, count):  

This following checks for the maximum using recursion

     if (count == 1):  

           return mylist[0]  

     return max(mylist[count - 1], MaxSet(mylist, count - 1))  

This defines the recursion that returns the minimum

def MinSet(mylist, count):  

This following checks for the minimum using recursion

     if (count == 1):  

           return mylist[0]  

     return min(mylist[count - 1], MinSet(mylist, count - 1))  

The main begins here

This prompts user for length of set

count = int(input("Length of set: "))

This defines an empty list

mylist = []  

The following iteration gets user input

for i in range(count):

     inp= int(input("Input: "))

     mylist.append(inp)

This calls the minimum function    

print("Minimum: "+str(MinSet(mylist, count)) )

This calls the maximum function

print("Maximum: "+str(MaxSet(mylist, count)) )

what's the component of the hardware?​

Answers

Some component of the hardware are central processing unit (CPU), monitor, mouse, keyboard, computer data storage, graphics card, sound card, speakers and motherboard.

I’m sure theirs more but here’s so. Hope this helps!
Computer hardware includes the physical parts of a computer, such as the case, central processing unit (CPU), monitor, mouse, keyboard, computer data storage, graphics card, sound card, speakers and motherboard. By contrast, software is the set of instructions that can be stored and run by hardware.

how do you copy from a file to another document

Answers

Answer:

you highlight it then double tap and click copy or after it is highlighted press ctrl and c together then to paste you double tap and click paste or you can press ctrl v

Explanation:

Answer: yes

Explanation:

Open File Explorer by pressing Windows+E and navigate to the file you want to copy. Highlight the files you want to copy, and then click “Copy” in the File menu or press Ctrl+C on the keyboard to add them to the clipboard. If you’d rather move items instead, highlight the files you want to move.

Add a data attribute tricks of type list to each Dog instance and initialize it in __init__ to the empty list. The user does not have to supply a list of tricks when constructing a Dog instance. Make sure that you test this successfully. >>> sugar.tricks []

Answers

Answer:

Following are the method to this question:

def __init__(self, _name, _breed):#defining Constructor

       """ Constructor """

       self.name = _name#assigning value in name variable

       self.breed = _breed#assigning value in breed variable

       self.tricks = []#defining tricks an empty list

Explanation:

In the above code, a parameterized constructor is defined, that hold two-variable "name and breed" in its parameter, and another object self is created for storing the value.

Inside the constructor two-variable, and one empty list variable "tricks" is defined that hold value in the name and breed variable, and the next step an empty list is defined, that store its value.

help plzzzzzzzzzzzzzzzzzzzzzzzzz

Answers

B, Parallel ports are faster than serial ports.

A parallel port can move a set of 8 bits at a time on eight different wires, it uses a 25 pin connector, called a DB-25 connector, whereas a serial port only has a DB-9 connector.

Which of the following is NOT one of the three testing phases of a JavaScript application?a) trying to make the application fail b) using the W3C Markup Validation Service to validate the HTML c) testing the application with valid data d) testing the application with invalid data

Answers

Answer:

b) using the W3C Markup Validation Service to validate the HTML

Explanation:

A JavaScript is one of the mainly used programming language. It is famous all over the world. Every software uses a JavaScript which includes a productivity apps, server code, 3D games, IoT devices, robots, etc.

A JavaScript code mainly runs on a web browser. In order to provide a JavaScript in the HTML document, we code an HTML script element which contains a JavaScript. Using the W3C markup validation service in order to validate a HTML is not a testing phase of a JavaScript applications.

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