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

Let the ratio be k:1 Applying section formula, x = (2k+1/k+1) , and , y = (7k+3/k+1) Therefore , 3x + y = 9 3(2k+1/k+1) + (7k+3/k+1) = 9 (6k+3/k+1) + (7k+3/k+1) = 9 6k+3+7k+3/k+1 = 9 13k+6/k+1 = 9 13k+6 = 9k+9 4k = 3 k = 3/4 Therefore, the required ratio = 3:4

1Thank You

Honey ??? 6 years, 10 months ago

Let it divides it in the ratio m:n and coordinates of intersection is x,y Now find x and y in terms of m and n by the help of section form. and then put the val. on the line seg. you will get the ratio.?????????????????????

0Thank You

Diksha?.. Atm..?? 6 years, 10 months ago

Sol. It

0Thank You

Honey ??? 6 years, 10 months ago

3:4

0Thank You

ANSWER

{(Msin+nsin)÷(msin-nsin)}+{(msin+nsin)÷(msin-nsin)}={2(m^4+n^4)}÷(m^4-n^4)

Posted by Deepankar Mandal 6 years, 10 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

find the area of shaded region in the given figure where a circular arc of 7 cm has been drawn with vertex of a of an equilateral triangle ABC of side 12cm as centre

Posted by Renu Dahiya 6 years, 10 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Solve 23x_29y=98and29 x_23y=110

Posted by Rajkamal Singh 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Gaurav Seth 6 years, 10 months ago

23x − 29y = 98    ....(1)

29x − 23y = 110     ...(2)

Adding (1) and (2), we get

52x − 52y = 208

52 (x-y) =208

⇒x − y = 4     .....(3)

Subtracting (2) from (1), we get

−6x − 6y = −12
⇒x + y = 2      ....(4)
adding (3) and (4), we get
2x = 6
⇒x = 3
Now, from (4), we get
y = −1

Hence, x=3 and y= -1.

0Thank You

ANSWER

in figure,abc is a right angled triangle at b,midian ad and ce are on 5cm and 2√5cm.find length of ac

Posted by Shyam Thakur 6 years, 10 months ago

CBSE > Class 10 > Mathematics

2 answers

Ranganath Gowda 6 years, 10 months ago

AC=6cm

0Thank You

Rahul Paswan 6 years, 10 months ago

Where is the figure?

1Thank You

ANSWER

√3 is irrasanal

Posted by Sukhbir Saini 6 years, 10 months ago

CBSE > Class 10 > Mathematics

2 answers

Harsh???? Sharma 6 years, 10 months ago

Yes it is the irrational

1Thank You

Avika Chaudhary 6 years, 10 months ago

Yes it is irrational?

5Thank You

ANSWER

Square root formoola

Posted by Alok Pandey 6 years, 10 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

The area of two similar triangles are 100sq. cm and 81sq. cm respectively. If the altitude of the bigger triangle is 5cm, find the corresponding altitude of the other.

Posted by Sunita Bohra 6 years, 10 months ago

CBSE > Class 10 > Mathematics

2 answers

Priyanshi Khandelwal 6 years, 10 months ago

=50/9

2Thank You

Prashant Parihar 6 years, 10 months ago

=81/20

2Thank You

ANSWER

Solve the quadratic equation by factorization method : x+1/x=626/25

Posted by Snehil Jaiswal 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Prashant Parihar 6 years, 10 months ago

X=25/601

0Thank You

ANSWER

What is the common difference of

Posted by Kunal Chirania 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Avinash Saigal 6 years, 10 months ago

The common difference is the difference between two numbers in an arithmetic sequence. Thank you??

1Thank You

ANSWER

A mettalic sphere of radius 4.2 cm is melted and recast into the shape of a cylinder of radius 6cm. Find the height of cylinder. Plz fast

Posted by Paras ? ? Shah ? ? 6 years, 10 months ago

CBSE > Class 10 > Mathematics

3 answers

Priyanshi Khandelwal 6 years, 10 months ago

2.744cm

2Thank You

Geetanand Yadav/ Rao Sahab??????✌??? 6 years, 10 months ago

Then find height

0Thank You

Geetanand Yadav/ Rao Sahab??????✌??? 6 years, 10 months ago

Volume of sphere=volume of cylinder

0Thank You

ANSWER

Sir median nikalte samay cf kaise pata karege

Posted by Ashoutosh Patwa 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Geetanand Yadav/ Rao Sahab??????✌??? 6 years, 10 months ago

Addition of all frequency

0Thank You

ANSWER

Factorise ~ x^2 - 2√5x + 3

Posted by Deepak Yadav 6 years, 10 months ago

CBSE > Class 10 > Mathematics

2 answers

Deepak Yadav 6 years, 10 months ago

Its possible as it was given in the book

0Thank You

Geetanand Yadav/ Rao Sahab??????✌??? 6 years, 10 months ago

Not possible

1Thank You

ANSWER

Plz tell me imp. Ques of chapter 13of maths

Posted by Sumit Kumar 6 years, 10 months ago

CBSE > Class 10 > Mathematics

2 answers

Paras ? ? Shah ? ? 6 years, 10 months ago

Example dekh lena us me se bhut se imp. Question he

0Thank You

Geetanand Yadav/ Rao Sahab??????✌??? 6 years, 10 months ago

In which we have to find the the volume,area,t.s.a.,c.s.a. of combination of shapes

1Thank You

ANSWER

Mean formula?

Posted by Veena Hegde 6 years, 10 months ago

CBSE > Class 10 > Mathematics

2 answers

Harshita Suri 6 years, 10 months ago

Mean = a + (sigma fdi'/sigma f) x h

0Thank You

Naina Shukl 6 years, 10 months ago

Sigma fixi/sigma fi

0Thank You

ANSWER

A=10,d=10

Posted by Pramod Kumar 6 years, 10 months ago

CBSE > Class 10 > Mathematics

3 answers

Ankit Yadav 6 years, 10 months ago

10,20,30,40........

0Thank You

Ankit Yadav 6 years, 10 months ago

A=10, D=10

0Thank You

Chirag Mantri 6 years, 10 months ago

10,20,30,40......

1Thank You

ANSWER

Which is the most important and difficult chapter in Maths. Plz reply

Posted by M A Santos 6 years, 10 months ago

CBSE > Class 10 > Mathematics

4 answers

Paras ? ? Shah ? ? 6 years, 10 months ago

Area related to circle Arithmetic progressions

0Thank You

Sumit Kumar 6 years, 10 months ago

Trigonometry ex 8.4 last 10 questions

2Thank You

Geetanand Yadav/ Rao Sahab??????✌??? 6 years, 10 months ago

No, trigonometry and triangles

0Thank You

Kashish Kashish 6 years, 10 months ago

Surface area and volume

1Thank You

ANSWER

Find the area of minor segment of a circle of radius 42cm ,if lenght of the corresponding arc is 44cm

Posted by Amrita Raj 6 years, 10 months ago

CBSE > Class 10 > Mathematics

2 answers

Chirag Mantri 6 years, 10 months ago

21(22-21√3)

0Thank You

Puja Sahoo? 6 years, 10 months ago

(924 - 441 root 3) cm square

2Thank You

ANSWER

What is construction

Posted by Priyanka Kumari 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Puja Sahoo? 6 years, 10 months ago

Construction in maths means to make or draw shapes , angles , lines accurately.These shapes , angles , lines can be made with the help of compass, ruler and pencil.????

0Thank You

ANSWER

Tommorow I'm having mathematics pre board exam so please help me to study

Posted by Shrijith The Artist ??? 6 years, 10 months ago

CBSE > Class 10 > Mathematics

4 answers

Maths Lover **** √Π÷= 6 years, 10 months ago

Radius is always perpendicular to tangent at the point of contact

0Thank You

Shrijith The Artist ??? 6 years, 10 months ago

Can you explain theorem 1in circles lesson

1Thank You

Puja Sahoo? 6 years, 10 months ago

And, if yu have any doubt yu can ask here.....?

2Thank You

Puja Sahoo? 6 years, 10 months ago

Its, maths, just go through all the formulas, and practice the problems which are hard fr yu........?

2Thank You

ANSWER

The circumference of a circle exceed its diameter by 180cm .what is radius of its

Posted by Areeba Siddiqui 6 years, 10 months ago

CBSE > Class 10 > Mathematics

3 answers

Priyanshi Khandelwal 6 years, 10 months ago

42cm

2Thank You

Maths Lover **** √Π÷= 6 years, 10 months ago

Given that, Circumfrence=diameter+180 2πr=2r+180 2(πr)=2(r+90) πr=r+90 πr-r =90 r(π-1)=90 r(22/7-1)=90 r(22-7/7)=90 r(15/7)=90 r=90×7/15 r=630/15 r=42

1Thank You

Geetanand Yadav/ Rao Sahab??????✌??? 6 years, 10 months ago

17.14

1Thank You

ANSWER

The perimeter of a right triangle is 60cm.its hypotenus is 25cm. Fund area of triangle.

Posted by Manish Singh 6 years, 10 months ago

CBSE > Class 10 > Mathematics

2 answers

Paras ? ? Shah ? ? 6 years, 10 months ago

Peeimeter = 60 cm Hyp.= 25 cm The remaning side must be 60- 25 = 35 cm Let one side be x The third side be 35 - x By pythagoras therom Hyp.ka 2 = base ka 2 +. Perpendicular ka 2 25 ka 2 = x ka 2 +. 35 - x ka 2 625 = x^ 2 + x ka 2 - 70x + 1225 2x ka 2 - 70x + 60 = 0 2x (x - 20) - 30 ( x- 20) = 0 (x- 20) (2x - 30) = 0 x- 20 = 0 x = 20 2x - 30 = 0 2x = 30 x = 15 So one of side is 20 cm and 15 cm If one side is 20 Then other side 35 - 20 = 15 cm If it is measured is 15 Then othet side 35 - 15 = 20 Therefore Ar. Of ∆ 1/2 × height × base 1/ 2 × 20 × 15 150 cm ka 2 Here is your answer Aur vo power he Ka 2. Wala

0Thank You

Raj Kumar 6 years, 10 months ago

Height =15 .......base =20 So, area will be 150 square cm

0Thank You

ANSWER

Given that √2 is irrational,prove that (5+3√2) is an irrational no.

Posted by Jitenrai Jitenrai 6 years, 10 months ago

CBSE > Class 10 > Mathematics

2 answers

Sneha Singh 6 years, 10 months ago

Let 5 + 3 √2 be a rational number = 5+3√2 = a = 3√2 = a-5 = √2 = a-5/3 Now, here a-5 / 3 is a rational number. Therefore root 2 is also a rational number. But also we know that root 2 is an irrational number. So our assumption was wrong, Therefore 5 + 3 root 2 is an irrational number Hence proved✓

0Thank You

Paras ? ? Shah ? ? 6 years, 10 months ago

Bro in dono question ko sath me prove karna he ya alag alaf

2Thank You

ANSWER

(b+C)^2/bc + (C+A)^2/ca +(a+b)^2/ab=3

Posted by Prince Kumar 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Geetanand Yadav/ Rao Sahab??????✌??? 6 years, 10 months ago

Done but answer kaise likhu

3Thank You

ANSWER

Value of cos A=

Posted by Geetanand Yadav/ Rao Sahab??????✌??? 6 years, 10 months ago

CBSE > Class 10 > Mathematics

4 answers

Chirag Mantri 6 years, 10 months ago

√(1- sin^2)

1Thank You

Anas Rehamani 6 years, 10 months ago

Sin(90-A)

4Thank You

Geetanand Yadav/ Rao Sahab??????✌??? 6 years, 10 months ago

It is 1/secA

1Thank You

Geetanand Yadav/ Rao Sahab??????✌??? 6 years, 10 months ago

Ashish tell the answer

1Thank You

ANSWER

The sum of the zeroes of the polynomial p(x)=k(x×x)+2x+3k is equal to their product then value of k is?

Posted by Zulfiqhar Ali 6 years, 10 months ago

CBSE > Class 10 > Mathematics

2 answers

Madhur Dubey ??? 6 years, 10 months ago

Since Sum of zeros is equals to product of zeros. Therefore -b/a=c/a.(on comparing with standard form of quadratic equation) Or,. -b=c. Or,. -2=3k. Or,. k=-2/3

0Thank You

Honey ??? 6 years, 10 months ago

-2/3

2Thank You

ANSWER

Is it necessary to take Id card in cbse board exams?

Posted by Vinayak Avasthi 6 years, 10 months ago

CBSE > Class 10 > Mathematics