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

Let the length of sides be 3x,4x&5x Perimeter=144 3x+4x+5x=144 12x=144 x=12cm 3x=3×12=36 4x=4×12=48 5x=5×12=60 Semi-perimeter(s)= a+b+c/2 Clac by herons formula. Area of∆= 1/2 × base × height Put value u ll get ans.

0Thank You

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4x^2+8x^2y factorise

Posted by Aman Khan 8 years, 6 months ago

CBSE > Class 09 > Mathematics

1 answers

Yogya Aggarwal 8 years, 6 months ago

8x+16xy

0Thank You

ANSWER

Find the coordinates of the point. 1 which lie on both the axes. 2. Whose abscissa is -4 and lines on x- axis 3. Whose ordinates 5 and lies on Y axis.

Posted by Krish Raja 8 years, 6 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

-91which table he came

Posted by Kunal Ray 8 years, 6 months ago

CBSE > Class 09 > Mathematics

1 answers

Gauri Gupta 8 years, 6 months ago

-13

2Thank You

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X square + 10 X + 21

Posted by Vishnu Saini 8 years, 6 months ago

CBSE > Class 09 > Mathematics

1 answers

Amar Kumar 8 years, 6 months ago

x²+10x+21

=x²+7x+3x+21

=x(x+7)+3(x+7)

=(x+7)(x+3)

1Thank You

ANSWER

The sides of triangle are x,x+1,(2x-1) and it's perimeter is x root 10. Find x...

Posted by Akanksha Mishra Mishra 8 years, 6 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

Prove the herons formula

Posted by Raman Raj 8 years, 6 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

How to Find a rational and irrational number between two irrational number s

Posted by Himanshu Nain 8 years, 6 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

What is degree of root under 2

Posted by Yuvraj Choudhary 8 years, 6 months ago

CBSE > Class 09 > Mathematics

1 answers

Ritik Kumar 8 years, 6 months ago

0 as it is constant and constant have 0 degree

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Posted by Anush Narayan D 8 years, 6 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

Iocate 2 on no. Line

Posted by Anuj Mishra 8 years, 6 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

Rationalisation of a÷√a+√b. Please tell me answer with explain.

Posted by Puneet Kumar 8 years, 6 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

X cube +y cube

Posted by Suryansh Bansal 8 years, 6 months ago

CBSE > Class 09 > Mathematics

2 answers

Sakshi Sahu 8 years, 6 months ago

(x+y)(x2+y2-xy)

0Thank You

Bhavya Taparia 8 years, 6 months ago

(x+y)(x square-x×y+y square)

1Thank You

ANSWER

Ab ka hole squre

Posted by Sunil Kumar 8 years, 6 months ago

CBSE > Class 09 > Mathematics

1 answers

Subhashish Saha 8 years, 6 months ago

A^2b^2

1Thank You

ANSWER

33+42

Posted by Aman Malik 8 years, 6 months ago

CBSE > Class 09 > Mathematics

1 answers

Kashish Singhwaiya 8 years, 6 months ago

1Thank You

ANSWER

If(x-3)and(x-1/2)are the factor of polynomial px²+3x+r.show that p=r

Posted by Armaan Singh 8 years, 6 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

x^3+6x^2+12x+16

Posted by Praveen A 8 years, 6 months ago

CBSE > Class 09 > Mathematics

1 answers

Praveen A 8 years, 6 months ago

I don't know

3Thank You

ANSWER

If cos 0° =sin0°÷tan0° Then. 0÷0 should be 1. But 0÷0 is an indeterminate term? Why

Posted by Aman Kumar 8 years, 6 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

Identify irrational number among the following 1) 7.5 bar 2) root 7 3)6/7 4)root 0.004

Posted by Ishita Jana 8 years, 6 months ago

CBSE > Class 09 > Mathematics

3 answers

Himanshu Nain 8 years, 6 months ago

2 and 3

5Thank You

Aditya Singh Rajput 8 years, 6 months ago

2. And 3.

3Thank You

Aman Kumar 8 years, 6 months ago

Root 7

4Thank You

ANSWER

How to cut in maths

Posted by Mohit Saroha 8 years, 6 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

PolynomiL

Posted by Anand Jaiswal 8 years, 6 months ago

CBSE > Class 09 > Mathematics

1 answers

Amar Kumar 8 years, 6 months ago

Any algebraic expression with many terms having variables and coefficients is called polynomial.

Example:x²+y

3Thank You

ANSWER

0 to the pawer 0 =

Posted by Aditya Rana 8 years, 6 months ago

CBSE > Class 09 > Mathematics

1 answers

Aditya Singh Rajput 8 years, 6 months ago

1 because any no. power to 0=1

1Thank You

ANSWER

In a quadrilaterel ABCD AB=BC=CD=AD

Posted by Rajni Kumar 8 years, 6 months ago

CBSE > Class 09 > Mathematics

1 answers

Aditya Singh Rajput 8 years, 6 months ago

Square and Rhombus

0Thank You

ANSWER

What is the full form q e d

Posted by Ritika Mishra 8 years, 6 months ago

CBSE > Class 09 > Mathematics

1 answers

Ananya Mittal 8 years, 6 months ago

Qoud erat demonstrandum

1Thank You

ANSWER

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