CBSE > Class 10 > Mathematics | CBSE Board | Homework Help

Let the point be P(X,0) And A(2,5) , B(-2,9) Since, PA=PB Therefore, PA^2 = PB^2 Distance of PA without Root = DISTANCE OF PB without Root Solve the equation , You'll get X= 7 or -7

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उपेंद्र वर्मा 5 years, 1 month ago

K=1

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Thota Jaiansh Meher 5 years, 1 month ago

Pls someone one reply in brief with formula also

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ANSWER

Please send some questions to question bank

Posted by Monika Gaur 5 years, 1 month ago

CBSE > Class 10 > Mathematics

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Two identical cube each volume 27cm are jointed together end to end. What is surface area of resulting cuboid??

Posted by Monika Gaur 5 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Shradha Babar 5 years, 1 month ago

Volume of cuboid a^3=3 TSA of cuboid =90cm^2

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ANSWER

How questions come in 10th Board exam? Easy or hard?

Posted by Shilpa Panchal 5 years, 1 month ago

CBSE > Class 10 > Mathematics

5 answers

Soni ? 5 years, 1 month ago

Both

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Chikku 007 5 years, 1 month ago

We don't know

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Anjali Kumari 5 years, 1 month ago

Easy

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Muskan Kushwaha 5 years, 1 month ago

Both

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Shilpa Panchal 5 years, 1 month ago

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My exam will come after 2 month so ,what is best doing on this time

Posted by Ranvijay Kumar 5 years, 1 month ago

CBSE > Class 10 > Mathematics

5 answers

Soni ? 5 years, 1 month ago

Prectise and revise

2Thank You

Ramasri Veerasimman 5 years, 1 month ago

Smart work

1Thank You

Shilpa Panchal 5 years, 1 month ago

Revision

3Thank You

Ranvijay Kumar 5 years, 1 month ago

Thanks

2Thank You

Shaily Sharma 5 years, 1 month ago

Revision

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ANSWER

Solve it 1+1(1+1).

Posted by Abhi Jha 5 years, 1 month ago

CBSE > Class 10 > Mathematics

5 answers

Shilpa Panchal 5 years, 1 month ago

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Ranvijay Kumar 5 years, 1 month ago

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Ranvijay Kumar 5 years, 1 month ago

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Narendra 11Th A 5 years, 1 month ago

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Satyam Kumar 5 years, 1 month ago

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How to solve word problems of quadratic or linear equation in two variable.Please help me

Posted by Himanshu Verma 5 years, 1 month ago

CBSE > Class 10 > Mathematics

2 answers

Eva Kandoth 5 years, 1 month ago

Assume values then form equations, place the equations in proper places keeping arithmetic signs in mind and then solve ,afterwards split the mid term and you'll have two values of the variable choose the favourable value and at last write an answer line and underline the main answer.

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Md Faizan Alam 5 years, 1 month ago

First thing is in chapter 4 there are not word problems because this is reduced from our syllabus

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ANSWER

If sum of first n terms of an AP is 2nsq+5n. Then find S20

Posted by V M 5 years, 1 month ago

CBSE > Class 10 > Mathematics

2 answers

Abhijot Bedi 5 years, 1 month ago

What is sq in 2nsq

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V M 5 years, 1 month ago

Please solve this ??????

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The nth terms of AP is 5n+2. Find 19th terms of AP.

Posted by V M 5 years, 1 month ago

CBSE > Class 10 > Mathematics

3 answers

Abhijot Bedi 5 years, 1 month ago

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Narendra 11Th A 5 years, 1 month ago

630

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Vaishnavi . 5 years, 1 month ago

nth term = 5n +2 a19 = 5(19)+2 a19 = 95 + 2 The 19th term will be 97

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ANSWER

Pove that root 2 is irrational number

Posted by Soni ? 5 years, 1 month ago

CBSE > Class 10 > Mathematics

5 answers

Akash Boominathan 5 years, 1 month ago

That's wrong

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Soni ? 5 years, 1 month ago

Thank you

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Ranvijay Kumar 5 years, 1 month ago

Because we started the whole process assuming that a/b was simplified to lowest terms, and now it turns out that a and b both would be even. We ended at a contradiction; thus our original assumption (that √2 is rational) is not correct. Therefore √2 cannot be rational. ... A proof that the square root of 2 is irrational

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Ranvijay Kumar 5 years, 1 month ago

Yes I can help you

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Soni ? 5 years, 1 month ago

Pls anyone pls give me ans beause i dont know how to solve of this questions

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ANSWER

Proof theorem 6.4

Posted by Sameuddhi Patil 5 years, 1 month ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Is question bank helpful

Posted by Devendernarwal Narwal 5 years, 1 month ago

CBSE > Class 10 > Mathematics

5 answers

Rudraksh Rai Udaiwal 5 years, 1 month ago

Yes

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Bhavesh Goyal 5 years, 1 month ago

Yes

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Rohit Roy 5 years, 1 month ago

Yes

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Soni ? 5 years, 1 month ago

Yes

2Thank You

Om Parihar 5 years, 1 month ago

Yes

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ANSWER

solve root 2 is an irrational number

Posted by Dev Pc 5 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Akash Boominathan 5 years, 1 month ago

Let us assume that √2 is rational such that p and q are coprimes and q not equal to 0 Therefore, √2 = p/q => √2q = p , SQUARING ON BOTH SIDES : 2q^2 = p^2 , 2 divides p^2 therefore 2 divides p__________(1) Let us take p = 2r for an integer r Therefore, => 2q^2 = (2r)^2 => q^2 = 2r^2 2 divides q^2 therefore it also divides q __________(2) From (1),(2) It shows that p and q have 2 as common factor, but it contradicts the fact that p and q are coprimes. This contradiction has arisen due to our wrong assumption. Therefore, we conclude that √2 is irrational //

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ANSWER

Solve by substituion x+2y-7=0, 2x-y-4=0

Posted by .. .... 5 years, 1 month ago

CBSE > Class 10 > Mathematics

2 answers

Shradha Babar 5 years, 1 month ago

from equation one x=7-2y substitute it in equation two x=3 and y=2

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Hitesh Kumar 5 years, 1 month ago

x is equal to 7-2y and then put the value of x in equation second

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ANSWER

A solid ball gets exactly filled in the cubical box of side b. Find the volume of the ball

Posted by Priyanshi Bisht 5 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

V M 5 years, 1 month ago

Volume of cubical box is equal to volume of ball

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ANSWER

A moment made as shown in the figure it's base PBCR is silver platel from the front side find the area which is silver ploted

Posted by Gracy Jeyaraj 4 years, 9 months ago

CBSE > Class 10 > Mathematics

1 answers

Preeti Dabral 4 years, 9 months ago

The memento is as shown in the attached picture.

The angle at A for ΔABC is 90 degrees.

Area of ΔABC = AB * AC/2 = 10* 10/2 = 50 Square cm.

Area of sector APR = Фπr²/360

Ф= angle in degrees.

r = radius of circle = 7 cm.

Area of sector APR = 90 * 22 * 7 * 7/(360 * 7) = 22 * 7/4 = 38.5 Square cm.

Area of Silver coated base (PBCR) = Area of ΔABC – Area of Sector APR.

= 50 – 38.5 = 11.5 Square cm.

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ANSWER

If the point k-1,2 is equidistant from the point 3,K and K,5 find the value of K

Posted by Pawni Rastogi 5 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Shradha Babar 5 years, 1 month ago

K=4

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ANSWER

The rainfall recorded in a city for 60 days is given in the following table. Find its median. (5) Rainfall (in cm) No. of Days 0 - 10 10 - 20 16 10 20-30 30 - 40 40 - 50 50-60 8 15 5 6

Posted by Varun Kumar 5 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Shradha Babar 5 years, 1 month ago

Median =25

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ANSWER

Show that the progression below is an AP find the text term of the AP (root under 18)(root under 50)(root under 98)

Posted by Ansh Chinchankar 5 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Vaishnavi . 5 years, 1 month ago

We can write root under 18 as 3 root 2 and root 50 as 5 root 2 therefore d=2root2. The next term of the AP will be 9root2 = root 162

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ANSWER

what is the farmula of quadratic equation

Posted by Divyansh Jaiswar 5 years, 1 month ago

CBSE > Class 10 > Mathematics

5 answers

R. Vijayavasudeva Rengesh 5 years, 1 month ago

X=-b+-√b²-4ac/2a

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Gagandeep Singh 5 years, 1 month ago

x²-(sum of zeroes)x + (product of zeroes)

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Bhoomika Verma 5 years, 1 month ago

= X2-(sum of the zeroes)x+(product of the zeroes)

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Vishal Sharma 5 years, 1 month ago

In algebra, a quadratic equation is any equation that can be rearranged in standard form as ax^{2}+bx+c=0 where x represents an unknown, and a, b, and c represent known numbers, where a ≠ 0. If a = 0, then the equation is linear, not quadratic, as there is no ax^2 term.

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Nancy Arora 5 years, 1 month ago

X square - (sum of zeros ) + ( product of zeroes )

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2/4

Posted by Bharat Suhag 5 years, 1 month ago

CBSE > Class 10 > Mathematics