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Ch 2 exercise 2.1

Posted by Priyanka Gupta 3 years, 9 months ago

CBSE > Class 08 > Mathematics

3 answers

Sweta Kumari 3 years, 9 months ago

ans= y=1.6×1.5 = y=2.4

Priyanka Gupta 3 years, 9 months ago

1.6=y/1.5

Priyanka Gupta 3 years, 9 months ago

Question ❓ number 8

ANSWER

Find the cube of -1 one by five

Posted by Khushi Yadav 3 years, 9 months ago

CBSE > Class 08 > Mathematics

3 answers

Anshuman Jha 3 years, 9 months ago

-1/125

Rahul Munjal 3 years, 8 months ago

Cube of -1/5 is -1/125

Aayushri Rajput 3 years, 9 months ago

-1 is itself it's cube

ANSWER

If 3x- 5y =10and xy=5 find 9x² + 25y²

Posted by Hafsah Batool 3 years, 9 months ago

CBSE > Class 08 > Mathematics

2 answers

Anshuman Jha 3 years, 9 months ago

250

Rahul Munjal 3 years, 9 months ago

X=5 Y=1 Equation answer=250

ANSWER

In a building there are 25 cylinders pillars. Radius of each pillar is 35 cm and height is 5 m. Find the total cost of painting the curved surface area of all pillars at the rate of Rs. 8 per metre square.

Posted by Dipti Bharti 3 years, 9 months ago

CBSE > Class 08 > Mathematics

5 answers

Anshuman Jha 3 years, 9 months ago

220000

Aayushri Rajput 3 years, 9 months ago

Total answer is 220000 rupess

Kartik Sharma 3 years, 9 months ago

220000

Hafsah Batool 3 years, 9 months ago

As csa of 1 pillar is 1100cm² And csa of 25 pillars is 27500cm² So cost of paint is rupees 8 × 27500 That is 220000 rupees

Hafsah Batool 3 years, 9 months ago

Answer is 22000 ruoees

ANSWER

Please give me 14 .2 formula

Posted by Reena Khemasara 3 years, 9 months ago

CBSE > Class 08 > Mathematics

0 answers

ANSWER

If a+1/a=17/4,then what is the value of a-1/a?

Posted by Siya Budhiraja 3 years, 9 months ago

CBSE > Class 08 > Mathematics

1 answers

Rahul Munjal 3 years, 9 months ago

-9/4

ANSWER

Take 1chip packet,1 biscuit packet ,1 pack of frooti, 1pack of mozzarella cheese . Read the information given of the back and represent the some thruogh pie charts.

Posted by Ritika 8A 3 years, 9 months ago

CBSE > Class 08 > Mathematics

0 answers

ANSWER

2xyz²+6xy³-10x²

Posted by Preet Mendpara 3 years, 9 months ago

CBSE > Class 08 > Mathematics

3 answers

Kriti Lalotra 3 years, 9 months ago

2x(yz^2+3y^3-5x)

Anshuman Jha 3 years, 9 months ago

x(2yz²+6y³-10x)

Igvj Uohy 3 years, 9 months ago

-2x^4y^4z^2

ANSWER

Definition of direct and inverse prepositions

Posted by Aiswarya Lakshmi 3 years, 9 months ago

CBSE > Class 08 > Mathematics

1 answers

Yashika Sharma 3 years, 9 months ago

A direct and inverse proportion are used to show how the quantities and amount are related to each other. They are also mentioned as directly proportional or inversely proportional. The symbol used to denote the proportionality is '∝'.18-Aug-2020

ANSWER

Write the smallest number which is a perfect square as well as perfect cube

Posted by Shaurya Srivastav 3 years, 9 months ago

CBSE > Class 08 > Mathematics

3 answers

𝑺𝒖𝒓𝒂𝒃𝒉𝒊 𝑺𝒂𝒖𝒎𝒚𝒂 3 years, 9 months ago

64 , 8² = 64 & 4³ = 64

Anshuman Jha 3 years, 9 months ago

64

Yashika Sharma 3 years, 9 months ago

64

ANSWER

-28/84 express as rational number with numerator 4

Posted by Preet Randhawa 3 years, 9 months ago

CBSE > Class 08 > Mathematics

1 answers

Anshuman Jha 3 years, 9 months ago

4/-12

ANSWER

Find the value of {(-3)⁰}-²

Posted by Nishtha Pincha 3 years, 9 months ago

CBSE > Class 08 > Mathematics

4 answers

Anurag Sharma 3 years, 9 months ago

1

Aayushri Rajput 3 years, 9 months ago

1 is it answer ..

Anshuman Jha 3 years, 9 months ago

1

Mridul # 3 years, 9 months ago

1

ANSWER

Divide (7x power by 2) by (x+2)

Posted by Mahi Bisen 3 years, 9 months ago

CBSE > Class 08 > Mathematics

0 answers

ANSWER

Unit 1 rotational number

Posted by Mukesh Tank 3 years, 9 months ago

CBSE > Class 08 > Mathematics

0 answers

ANSWER

Give me some notes for understanding quadrilaterals

Posted by Ifa Ansari 3 years, 9 months ago

CBSE > Class 08 > Mathematics

1 answers

Anshuman Jha 3 years, 9 months ago

Are you from dav school?

ANSWER

Chapter 2 Exercise 2.1

Posted by Gaurav Maurya 3 years, 9 months ago

CBSE > Class 08 > Mathematics

1 answers

Aditya Goyal 3 years, 8 months ago

Exercise 2.1 ka konsa question

ANSWER

Case study based of mensuration

Posted by K S Tanmayi 3 years, 9 months ago

CBSE > Class 08 > Mathematics

0 answers

ANSWER

25a2-4b2+28bc-49c2

Posted by Archa P.Sunil 3 years, 9 months ago

CBSE > Class 08 > Mathematics

2 answers

Yashika Sharma 3 years, 9 months ago

25a 2 −4b 2 −28bc−49c 2 =(5a) 2 −(2b) 2 +28bc−(7c) 2 =(5a) 2 −{(2b) 2 +2×2b×7c−(7c) 2 } ∵[(a+b) 2 =a 2 +b 2 +2ab] =(5a) 2 −(2b+7c) 2 ∵[a 2 −b 2 =(a−b)(a+b)] ={(5a)−(2b+7c)}{(5a)+(2b+7c)} =(5a−2b−7c)(5a+2b+7c)

Ayaan Deshmukh 3 years, 9 months ago

25a 2 −4b 2 −28bc−49c 2 =(5a) 2 −(2b) 2 +28bc−(7c) 2 =(5a) 2 −{(2b) 2 +2×2b×7c−(7c) 2 } ∵[(a+b) 2 =a 2 +b 2 +2ab] =(5a) 2 −(2b+7c) 2 ∵[a 2 −b 2 =(a−b)(a+b)] ={(5a)−(2b+7c)}{(5a)+(2b+7c)} =(5a−2b−7c)(5a+2b+7c)

ANSWER

A B and C can do a piece of work in 15,12 and 20 days respectively. They started the work together but C left 2 days.In how many days will the remaining work be completed by A and B

Posted by Priya Singh 3 years, 9 months ago

CBSE > Class 08 > Mathematics

0 answers

ANSWER

The two perpendicular sides of right angle triangle are in the ratio 3:4 and its perimeter is 96 cm find three sides

Posted by Goutham Bharadwaj 3 years, 9 months ago

CBSE > Class 08 > Mathematics

0 answers

ANSWER

What is best combo book for CBSE & ICSE board , class 6th 7th & 8th Mathematics

Posted by Chandan Kumar 3 years, 9 months ago

CBSE > Class 08 > Mathematics

1 answers

Nagu Loda 3 years, 9 months ago

Tere maa ki lodi

ANSWER

Class eight ch. No. 13

Posted by Sourav Singh 3 years, 9 months ago

CBSE > Class 08 > Mathematics

0 answers

ANSWER

A train crosses a 210 metre long platform in 15 seconds . It crosses a pole 4 and 1/2seconds the speed of the train is

Posted by Faiyza Fatima 3 years, 9 months ago

CBSE > Class 08 > Mathematics

1 answers

Aaditya Lamba 3 years, 9 months ago

28m/s

ANSWER

11 men can dig 6 whole 3/4 m of cloth trench in one day. How many men should be employed for digging 27 m long trench of the same type in one day?

Posted by Suhasni Agarwal 3 years, 9 months ago

CBSE > Class 08 > Mathematics

0 answers

ANSWER

L-22 B-33 area

Posted by Shaivi 3 years, 9 months ago

CBSE > Class 08 > Mathematics

0 answers

ANSWER

If (1,4) is the centroid of a triangle any two vertices are (4,-3) and (-9,7) then the third vertex is

Posted by ☺️ 🤯 3 years, 9 months ago

CBSE > Class 08 > Mathematics

0 answers

ANSWER

4.1Ex Q11

Posted by Rayyan Qureshi 3 years, 9 months ago

CBSE > Class 08 > Mathematics

1 answers

Thanushree Raj 3 years, 9 months ago

(3^6÷3^8)×3^-4

ANSWER

The area of a trapezium is 248 sq. Metre and it's height is 8 metre. If one of the parallel side is smaller than the other by 4 m. Find two parallel side.

Posted by Shashank Sharma 3 years, 9 months ago

CBSE > Class 08 > Mathematics

1 answers

Diksha Sharma 3 years, 9 months ago

Other side of parallel is 52m

ANSWER

what is the answer of of chapter 15 areas ex 15.3 question no. 11

Posted by Ayushi Agarwal 3 years, 9 months ago

CBSE > Class 08 > Mathematics

1 answers

Ayushi Agarwal 3 years, 9 months ago

please tell answer

ANSWER

Add : 5m(3 - m) and 6msquare - 13m

Posted by Sonu Singh 3 years, 9 months ago

CBSE > Class 08 > Mathematics

1 answers

Diksha Sharma 3 years, 9 months ago

2m-m²

ANSWER

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