Why |x-5| =-4 is invalid ? could some one brief here

Asked by Last Modified  

39 Answers

Learn Class IX-X Tuition

Follow 0
Answer

Please enter your answer

Akshay Vyavahare

B.Sc.(I.T.) Diploma of Software Engineer. from NIIT

Hi, |abc| is called Mod symbol.. i.e. value will be absolute (non-negative).. i.e. value inside mod symbol will remain positive. eg. |-5| = 5 So, |x-5|=-4 is invalid.. it can be |x-5|=4.
Comments
Dislike Bookmark

IIT/BITSAT Decoded !!

The answer is simple, modulas of anything cannot be negative since mod makes every quantitiy positive .Therefore |x-5| can never be equal to -4.
Comments
Dislike Bookmark

Headstart to assured 95+ score in math

| | symbol means modulus. It just gives a positive real no., no matter the no. inside is | | is positive or negative. So there can never be a no. whose modulus is negative.(the modulus of a negative no. can be positive,in fact it is.). Good luck.
Comments
Dislike Bookmark

Tutor

When you apply the concept of absolute value to any quantity say a scalar or vector, it returns a scalar value of something like distance and not displacement. Distance does not have direction, thus it can't be negative.
Comments
Dislike Bookmark

GMAT Math Expert

Mod of any value inside is always positive. In this case answer is given negative, so it's incorrect.
Comments
Dislike Bookmark

BE, R V College Of Engineering, Bangalore.

since modulus is always positive and LHS in above equation contains modulus while RHS is having negative number.so positive quantity can't be equal to negative hence the above equation is invalid.
Comments
Dislike Bookmark

When "absolute" of some value is taken ,the resultant value will always be positive,hence the equation itself is not valid as the answer is -4(a negative value)
Comments
Dislike Bookmark

Retired from Kendrya vidyalaya.received awards from Kvs for being the best teacher rmore than once

mod x-5 is positive.hence it can't be=-4
Comments
Dislike Bookmark

Teaching is my passion!!!!

Modulus is like a machine in which input can be any real no.. But output is always without sign..
Comments
Dislike Bookmark

Tutor

The answer should be |x-5| = 4 as modulus of any number is positive. Hence the given expression is invalid.
Comments
Dislike Bookmark

View 37 more Answers

Related Questions

What is the double coincidence of wants?
Double coincidence of wants occurs when two individuals swap their goods, in exchange for one another. This is also referred to as the 'perfect barter exchange'. In such cases, both the individuals are...
Hardik
What is first law of thermodynamics?
The first law of thermodynamics is a version of the law of conservation of energy, adapted for thermodynamic systems. The law of conservation of energy states that the total energy of an isolated system...
Ravi Ranjan
0 0
7
Answer is infinity....or we can add using AM upto n values and then n tends to infinity....gives value to infinity....
go through below for more infinity series details, then you will understand the concept Infinite series An infinite series is an expression like this: S = 1 + 1/2 + 1/4 + 1/8 + ... The dots mean...
Rishi
Explain any four characteristics of Kandla sea port.
Kandla in Kuchchh was the first port developed soon after independence.The characteristics of Kandla sea port are(i) Kandla in Kuchchh was the first port developed soon after independence.(ii) It was developed...
Tarun
0 0
6
Find the number of terms of the A.P: 7, 13, 19, ...., 205?
The first term, t1=a = 7. The common difference, b=13 - 7=6. Last term or the nth term, tn=a + (n-1)b = 205. So, we have, 7 + (n - 1)6 = 205 --> (n - 1) = (205 - 7)/6 = 33 --> n = 34. Answer: Number of terms is 34.
Swati
0 0
6

Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com

Ask a Question

Related Lessons

Physics Basics
The hard coke is obtained when carbonization of coal is carried out at(A) 500° to 700°C(B) 700° to 900°C(C) 300° to 500°C(D) 900° to 1100°C Which of the following is an...

Rahul Kumar

0 0
0
Nomenclature For Organic Compounds
In organic chemistry nomenclature is one of the important topic we come across. This is introduce for studnets from school level. However we still find studnets making mistake in these types of easy questions....

Pratiksha R.

0 0
0
learning is fun ,,,teaching is just showing a student how to enjoy it .
teaching-finding effective ways to make learning fun for the child
G

G.haritha

0 0
0
Rational Numbers
A number of the form p/q where q not equals to zero is called a rational numbers. P may be zero or may not. P and q are positive /negative integers. It denotes the part of a quantity...
M

Mohit S.

1 0
0
Carbon and its compounds
Carbon: Introduction Atomic Number: 6 Electronic configuration: 2, 4 Valence electrons: 4Property: Non-metal Abundance: Carbon is the 4th most abundant substance in universe and 15th most abundant...

Tejas Academy Centre

1 0
0

Recommended Articles

Meet Swati, a Hindi Tutor from Bangalore

Swati is a renowned Hindi tutor with 7 years of experience in teaching. She conducts classes for various students ranging from class 6- class 12 and also BA students. Having pursued her education at Madras University where she did her Masters in Hindi, Swati knows her way around students. She believes that each student...

Read full article >

Quest Academy - Institute of the month

Quest Academy is a professional Bangalore based NEET and JEE (Main + Advanced) training institute. The academy was incorporated in 2015 to cater to the needs of students, who aim to crack competitive exams by connecting with the best brains around. The institute helps students enhance their skills and capabilities through...

Read full article >

Meet Sandhya R, a B.Sc tutor from Bangalore

Sandhya is a proactive educationalist. She conducts classes for CBSE, PUC, ICSE, I.B. and IGCSE. Having a 6-year experience in teaching, she connects with her students and provides tutoring as per their understanding. She mentors her students personally and strives them to achieve their goals with ease. Being an enthusiastic...

Read full article >

Meet Mohammad Wazid, a skilled trainer for...

Mohammad Wazid is a certified professional tutor for class 11 students. He has 6 years of teaching experience which he couples with an energetic attitude and a vision of making any subject easy for the students. Over the years he has developed skills with a capability of understanding the requirements of the students. This...

Read full article >

Find Class 10 Tuition near you
Class 10 Tuition in Delhi
Class 10 Tuition in Bangalore
Class 10 Tuition in Hyderabad
Class 10 Tuition in Kolkata
Class 10 Tuition in Mumbai
Class 10 Tuition in Chennai
Class 10 Tuition in Pune
Class 10 Tuition in Noida
Class 10 Tuition in Lucknow
Class 10 Tuition in Gurgaon
Online Tuition Class 10

Looking for Class 10 Tuition ?

Learn from the Best Tutors on UrbanPro

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you