CBSE > Class 09 > Mathematics | CBSE Board | Homework Help

Ask questions which are clear, concise and easy to understand.

Ask Question

Prove that -2,-11 are equidistant from -3,-7 and 4,6

Posted by Rosie Lama 4 years, 1 month ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

AD is an altitude of an isosceles triangle ABC in which AB = AC show that AD bisects BC

Posted by Khushi Bhadouria 4 years, 1 month ago

CBSE > Class 09 > Mathematics

1 answers

Ananya K 4 years, 1 month ago

∆ABC is an isosceles triangle, So, AB = AC Also, AD is the altitude

0Thank You

ANSWER

A gardener has to put double fence all around a triangular path with sides 120m, 80m and 60m. In the middle of each sides, there is a gate of width 10m. Find the length of the wire needed for the fence.

Posted by Shabd Kumar 4 years, 1 month ago

CBSE > Class 09 > Mathematics

3 answers

Shabd Kumar 4 years, 1 month ago

Thanks Yogita, but I think that double fence means on the both sides of path. As the gate is only on one side so we have to minus length of three gates from total fence only one time and the answer is 490m

2Thank You

Amrita Pandey 4 years, 1 month ago

Dog

2Thank You

Yogita Ingle 4 years, 1 month ago

A gardener has to put a double fence all around a triangular path with sides 120m, 80m and 60m.

In the middle of each side there is a gate of width 10m.

The perimeter of triangle = Sum of all sides

= 120+80+60 = 260 m

Now , the length of wire needed for fence = 2 x ( Perimeter of triangle - 3(10))

= 2 x(260-30) = 2 x (230) = 460 m

5Thank You

ANSWER

25^6 - 25^6 =

Posted by Omanshu Gupta 4 years, 1 month ago

CBSE > Class 09 > Mathematics

2 answers

Ananya K 4 years, 1 month ago

0Thank You

Mahankali Karthikeya 4 years, 1 month ago

0Thank You

ANSWER

Prove that (i) √5 - √3 is an irrational number. (ii) √5 + √3 is an irrational number. Solve this ! Need help !

Posted by Nikhil Bbagchandani 4 years, 1 month ago

CBSE > Class 09 > Mathematics

1 answers

Bhavadhaarini M 4 years, 1 month ago

Let as assume on contrary that √3 + √5 is a rational number. Then there exists co - prime integers p and q such that ⇒ √3 is a rational number . But this contradicts the fact that √3 is irrational. So, our assumption is wrong. Hence, √3 + √5 is irrational.

3Thank You

ANSWER

If two parallel lines are cut by a transversal prove that the bisectors of interior angle on the same side of transversal intersects each other at right angles angles

Posted by Ankit Mondal 4 years, 1 month ago

CBSE > Class 09 > Mathematics

2 answers

Vinayak Singh 4 years, 1 month ago

1 rush11 01.03.2018 Math Secondary School +5 pts Answered if two parallel lines are intersected by a transversal prove that the bisectors of the interior angles on the same side of the transversal intersect each other at right angles 2 SEE ANSWERS Log in to add comment Answer 4.5/5 17 ayush8696 Helping Hand 16 answers 1.1K people helped I hope that this will help you thankyou tramwayniceix and 24 more users found this answer helpful THANKS 17 4.5 (8 votes) Log in to add comment Answer 3.0/5 1 Brainly User Solutions: We know that the sum of interior angles on the same side of the transversal is 180°. Hence, ∠BMN + ∠DNM = 180° => 1/2∠BMN + 1/2∠DNM = 90° => ∠PMN + ∠PNM = 90° => ∠1 + ∠2 = 90° ............. (i) In △PMN, we have ∠1 + ∠2 + ∠3 = 180° ......... (ii) From (i) and (ii), we have 90° + ∠3 = 180° => ∠3 = 90° => PM and PN intersect at right angles.

1Thank You

Vinayak Singh 4 years, 1 month ago

here you go and if u want more solutions just dm me

1Thank You

ANSWER

Exercise7

Posted by Nitin And Anu Sharma 4 years, 1 month ago

CBSE > Class 09 > Mathematics

3 answers

Abhishek Chaudhary 4 years, 1 month ago

Mera pare Bhai exercise mata beja karo question bhi beja karo j

2Thank You

Bhumika Sharma ✓ 4 years, 1 month ago

Hey mate........from excercise 7 which question u wanna ask.....pls tell so that we could help u ☺️.

2Thank You

Ananya K 4 years, 1 month ago

Which question

0Thank You

ANSWER

Which of the irrational numbers. A)root 4/9 B)root 5 C)root 81 D)root 12/13

Posted by Deepanshi Antil 4 years, 1 month ago

CBSE > Class 09 > Mathematics

5 answers

Naina Gupta 4 years, 1 month ago

a)√4/3 = 2/3, is it not irrational....... b) √5 = irrational......... c) √81= 9, it is no irrational...... d) √12/13= irrational ..........

1Thank You

Naina Gupta 4 years, 1 month ago

B and D are irrational

1Thank You

Tiger$ Praful Jawale 4 years, 1 month ago

A & B

0Thank You

Arun Kushwah 4 years, 1 month ago

A,B,C are irrational number

2Thank You

Ananya K 4 years, 1 month ago

Option A, B, D all the four are irrational numbers

2Thank You

ANSWER

Give an example of monomial and a binomial having degree as 82 and 99 respectively.

Posted by Ananya K 4 years, 1 month ago

CBSE > Class 09 > Mathematics

4 answers

Bhavadhaarini M 4 years, 1 month ago

Monomial : x^82 Binomial : 2a + b^99

2Thank You

Naina Gupta 4 years, 1 month ago

monomial= 2x^82 ....... Binomial= 2x^99+3

2Thank You

Ayush Kumar 4 years, 1 month ago

Monomial of degree 82=x^82 Binomial of degree 99= x^99+3x

2Thank You

Ananya K 4 years, 1 month ago

Please give the answer ?

2Thank You

ANSWER

गुणनखड कीजिए ex 2.5 puestion 5

Posted by Anurag Jangra 4 years, 1 month ago

CBSE > Class 09 > Mathematics

2 answers

Bhavadhaarini M 4 years, 1 month ago

CBSE or ICSE or STATE BOARD

1Thank You

Ananya K 4 years, 1 month ago

Exercise 2.5 Question no 5 (i) (2x)²+(3y)²+(-4z)²+2(3y)(-4z)+2(-4z)(2x) (2x+3y-4z)² (2x+3y-4z)(2x+3y-4z)

3Thank You

ANSWER

Ch 7 triangle koi mujhe short tips de sakte hai banana ke liye

Posted by Shivam Kumar 4 years, 1 month ago

CBSE > Class 09 > Mathematics

1 answers

Shivam Kumar 4 years, 1 month ago

4Thank You

ANSWER

The point whose abscissa is 0 and and ordinate is -3is

Posted by Pushpa Shukla 4 years, 1 month ago

CBSE > Class 09 > Mathematics

4 answers

Garv Dubey 4 years, 1 month ago

It will lie on y-axis

0Thank You

Bhavadhaarini M 4 years, 1 month ago

It lies on the axis y'

0Thank You

Focus Pharma 4 years, 1 month ago

It will lie on y - axis

0Thank You

Raghav Hooda Chauhan 4 years, 1 month ago

It will lie on y {negative }

0Thank You

ANSWER

Prove that a^0=1 Here `a`means non zero positive rational number

Posted by Twam Shree 4 years, 1 month ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

Prove that 1 1 1 1 1 1 1 b a c a a b c b a c b c x x x x x x − − − − − − +

Posted by Rishikesh Sharma 4 years, 1 month ago

CBSE > Class 09 > Mathematics

2 answers

Twam Shree 4 years, 1 month ago

Question is wrong

2Thank You

Focus Pharma 4 years, 1 month ago

This type of sum is not there

1Thank You

ANSWER

A+b ka hole sq

Posted by Aadarsh Jha 4 years, 1 month ago

CBSE > Class 09 > Mathematics

5 answers

Priya Priya 4 years, 1 month ago

a^2+b^2+2ab

2Thank You

Anurag Rawat 4 years, 1 month ago

a^2+b^2+2ab

2Thank You

Focus Pharma 4 years, 1 month ago

a^2 + b^2 + 2ab or a^2 + 2ab + b^2

1Thank You

Ananya K 4 years, 1 month ago

(a+b)² = a² + b² + 2ab Or (a+b)² = a² + 2ab +b²

1Thank You

Shivam Kumar 4 years, 1 month ago

a^2 + b^2 + 2ab or a^2 + 2ab + b^2

0Thank You

ANSWER

Sate prove mid point theorem

Posted by Chandraveer Chauhan 4 years, 1 month ago

CBSE > Class 09 > Mathematics

1 answers

Ananya K 4 years, 1 month ago

We conclude that the line joining the mid point of two sides of a triangle is equal to half the length of the third side. The conserve of this theorem states: If a line is drawn through the mid point of a side of a triangle parallel to the second side, it will bisect third side.

1Thank You

ANSWER

Exercise 7

Posted by Nitin And Anu Sharma 4 years, 1 month ago

CBSE > Class 09 > Mathematics

1 answers

Abhishek Chaudhary 4 years, 1 month ago

Question to send Kar de Mera payre bhai

0Thank You

ANSWER

Ch 5 maths come in exam

Posted by Shivam Kumar 4 years, 1 month ago

CBSE > Class 09 > Mathematics

4 answers

Jashith Sharma 4 years, 1 month ago

O yes it is deleted. Sorry my mistake. I thought that it is for science

1Thank You

Jashith Sharma 4 years, 1 month ago

No, this chapter is not deleted

1Thank You

Uchit Patel 4 years, 1 month ago

But why?

1Thank You

Zoya . 4 years, 1 month ago

No,this chapter is deleted from syllabus.

2Thank You

ANSWER

Simplify each of the following expressions (3+√3)(2+√2)

Posted by Priyanka Roy 4 years, 1 month ago

CBSE > Class 09 > Mathematics

3 answers

Uchit Patel 4 years, 1 month ago

3(2+√2) + √3(2+√2) = 6+3 √2 + 2√3 +6

4Thank You

Lavishka Choudhary 4 years, 1 month ago

=3(2+√2) + √3(2+√2) =6+3√2 + 2√3+6

5Thank You

Lavishka Choudhary 4 years, 1 month ago

3(2+√2) +√3(2+√2) 6+3√2 + 2√3+6

4Thank You

ANSWER

if x=1,y=6 is a solution of equation 8x-ay+a^2=0,find the value of a

Posted by Kartik Haldwaniya 4 years, 1 month ago

CBSE > Class 09 > Mathematics

1 answers

Lavishka Choudhary 4 years, 1 month ago

Which chapter's question is this

0Thank You

ANSWER

Write three numbers whose decimal expansion are non terminating non recurring

Posted by Ananya K 4 years, 1 month ago

CBSE > Class 09 > Mathematics

3 answers

Naina Gupta 4 years, 1 month ago

0.150150015000150000.......................... 0.120120012000120000..... 0.910910091000910000.....

1Thank You

Radha Kothari 4 years, 1 month ago

The three numbers that have their expansions as non-terminating on recurring decimal are given below. 0.04004000400004…. 0.07007000700007…. 0.013001300013000013….

2Thank You

Guriya Devi 4 years, 1 month ago

M c p

1Thank You

ANSWER

Convert 4/3√16 into sure if simplest form

Posted by Manatpreet Kaur Manatpreet Kaur 4 years, 1 month ago

CBSE > Class 09 > Mathematics