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

Given length of the box =1.5 m Breadth of the box =1.25 m Height of the box =65 cm =0.65 m =2 (l+b)×h+lb =2 ( 1.5 +1.25 )×.65+1.5×1.25 =3.575+1.875 =5.45 m2 =20×5.45=109.

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Prove that a cyclic qaudrilateral is a parallelogram

Posted by Shanky Mishra 8 years, 1 month ago

CBSE > Class 09 > Mathematics

3 answers

Amisha Sharma ? 8 years, 1 month ago

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#Aditi~ Angel???? 8 years, 1 month ago

Teacher ne nhi padhaua

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A Kumar 8 years, 1 month ago

R. D dharma main dekh le

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a sphere and a cube have same surface area . show that the ratio of the volume of a sphere to that of cube is root 6:root pie

Posted by Divyanshi Sengar 8 years, 1 month ago

CBSE > Class 09 > Mathematics

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How to find irrational no between 56

Posted by Rattan Puri 8 years, 1 month ago

CBSE > Class 09 > Mathematics

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Factorise this equation:-p-q³+q-p³+p-p³

Posted by Aman Sahay 8 years, 1 month ago

CBSE > Class 09 > Mathematics

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Represent on number line underoot 5.6

Posted by Jatinder Dhaliwal 8 years, 1 month ago

CBSE > Class 09 > Mathematics

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Using suitable identities to find the following product (x + 4) ( x + 10)

Posted by Mayank Sharma 8 years, 1 month ago

CBSE > Class 09 > Mathematics

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Adyasha Satapathy 8 years, 1 month ago

(x+a) (x+b)=x^2+(a+b)x+ab [(x*x)+(4+10)x+(4*10)]

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Posted by Amir Khan 8 years, 1 month ago

CBSE > Class 09 > Mathematics

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Good mg everyone

Posted by Karan Kumar Mahato 8 years, 1 month ago

CBSE > Class 09 > Mathematics

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If x+5=7 Then find x

Posted by Ritik Kumar 8 years, 1 month ago

CBSE > Class 09 > Mathematics

2 answers

A Kumar 8 years, 1 month ago

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Ritik Kumar 8 years, 1 month ago

x+5=7 x=7-5=2

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8x²-(2x-y)³

Posted by Lucky Tripathi 8 years, 1 month ago

CBSE > Class 09 > Mathematics

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Which is more: sevenstens or ten sevens

Posted by Aviral Pandey 8 years, 1 month ago

CBSE > Class 09 > Mathematics

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ΔABC is an equilateral triangle whose three vertices lie on a circle. Side AB is produced to a point D such that DB =AB . A line through D parallel to BC is drawn . A line through C parallel to DB is drawn to meet the previously drawn line at E. Prove that area of ΔABC is equal to half of area of quadrilateral BDEC.

Posted by Sanket Naik 8 years, 1 month ago

CBSE > Class 09 > Mathematics

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( X/3+y/5 3)3. (X/3-y/5)3

Posted by Nitin Kumar Yadav 8 years, 1 month ago

CBSE > Class 09 > Mathematics

1 answers

Nitin Kumar Yadav 8 years, 1 month ago

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Prove angle sum property of traingle

Posted by Mahak Sahu 8 years, 1 month ago

CBSE > Class 09 > Mathematics

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Volume of cube is 5832m3 find the cost of painting it's total surface area at the rate of 3.50Rs per m3

Posted by Swati Tiwari 8 years, 1 month ago

CBSE > Class 09 > Mathematics

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There are 100 students in class if average height of all is 150 cm. If the average height of 60 boys is 170 cm. Find the average height of girls ?¿?¿?¿

Posted by Madhu Rajput 8 years, 1 month ago

CBSE > Class 09 > Mathematics

1 answers

Mahak Sahu 8 years, 1 month ago

Average height of all student = (x1 +x2+.......+x100)÷100 150× 100=(x1 +x2+.......+x100) 15000=(x1 +x2+.......+x100) Average height of boys=(x1+......x60)÷60 170×60=(x1+......x60) 10200=(x1+......x60) 15000-10200=4800 Average height of girls= (x1+.....+x40)÷40 Average height of girls=4800÷40 Average height of girls=120

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Hii friends good morning

Posted by Ku Mrunal Balapure 8 years, 1 month ago

CBSE > Class 09 > Mathematics

2 answers

Amrita Patidar 8 years, 1 month ago

Good morning

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Amrita Patidar 8 years, 1 month ago

Hello

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Find the remainder when x^3+3x^2+3x+1 is divided by x+1

Posted by Saif Ali Ansari 8 years, 1 month ago

CBSE > Class 09 > Mathematics

1 answers

Saif Ali Ansari 8 years, 1 month ago

There is x+1 so, in remainder theorem x=-1 So, P(x)=x^3+3x^2+3x+1 P(-1)=(-1)^3+3(-1)^2+3(-1)+1 P(-1)=-1+3-3+1 P(-1)=1-1+3-3 P(-1)=0+3-3 P(-1)=0+0 P(-1)=0

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What is rtio

Posted by Sohail Khan 8 years, 1 month ago

CBSE > Class 09 > Mathematics