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The number of family members in 10 flats of society are 2, 4, 3, 3, 1,0,2,4,1,5. Find the mean number of family members per flat.

Posted by Anshika Choudhary 9 months, 1 week ago

CBSE > Class 09 > Mathematics

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The height of 20 students of class V are noted as follows 4, 4.5, 5, 5.5, 4, 4, 4.5, 5, 5.5, 4, 3.5, 3.5, 4.2, 4.6, 4.2, 4.7, 5.5, 5.3, 5, 5.5. Make a frequency distribution table for the above data. Which is the most common height and which is the rarest height among these students?

Posted by Anshika Choudhary 9 months, 1 week ago

CBSE > Class 09 > Mathematics

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Give three examples of data which you can get from your day-to-day life.

Posted by Anshika Choudhary 9 months, 1 week ago

CBSE > Class 09 > Mathematics

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A rectangular plot is given for constructing a house, having a measurement of 40 m long and 15 m in the front. According to the laws, a minimum of 3 m, wide space should be left in the front and back each and 2 m wide space on each of other sides. Find the largest area where a house can be constructed.

Posted by Anshika Choudhary 9 months, 1 week ago

CBSE > Class 09 > Mathematics

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How much paper of each shade is needed to make a kite given in the figure, in which ABCD is a square with diagonal 44 cm.

Posted by Anshika Choudhary 9 months, 1 week ago

CBSE > Class 09 > Mathematics

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The perimeter of an isosceles triangle is 32 cm. The ratio of the equal side to its base is 3: 2. Find the area of the triangle.

Posted by Anshika Choudhary 9 months, 1 week ago

CBSE > Class 09 > Mathematics

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Find the cost of laying grass in a triangular field of sides 50 m, 65 m and 65 m at the rate of Rs 7 per m2.

Posted by Anshika Choudhary 9 months, 1 week ago

CBSE > Class 09 > Mathematics

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A rhombus-shaped field has green grass for 18 cows to graze. If each side of the rhombus is 30 m and its longer diagonal is 48 m, how much area of grass field will each cow be getting?

Posted by Anshika Choudhary 9 months, 1 week ago

CBSE > Class 09 > Mathematics

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A field is in the shape of a trapezium whose parallel sides are 25 m and 10 m. The non-parallel sides are 14 m and 13 m. Find the area of the field.

Posted by Anshika Choudhary 9 months, 1 week ago

CBSE > Class 09 > Mathematics

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The sides of a triangle are in the ratio of 12: 17: 25 and its perimeter is 540cm. Find its area.

Posted by Anshika Choudhary 9 months, 1 week ago

CBSE > Class 09 > Mathematics

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Find the area of a triangle whose two sides are 18 cm and 10 cm and the perimeter is 42cm.

Posted by Anshika Choudhary 9 months, 1 week ago

CBSE > Class 09 > Mathematics

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Show that the quadrilateral, formed by joining the mid-points of the sides of a square is also a square.

Posted by Anshika Choudhary 9 months, 1 week ago

CBSE > Class 09 > Mathematics

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Find the area of an isosceles triangle each of whose equal sides measures 13 cm and whose base measures 20 cm. in class 9 in RS Agarwal book chap 14

Posted by Nitin Mishra 9 months, 1 week ago

CBSE > Class 09 > Mathematics

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Manshu Singh 9 months, 1 week ago

We have, Area of a triangle by heron's formula= √s(s-a)(s-b) (s-c) Now we know, s = perimeter of triangle/2 So, s=13+13+20/2=23 Let, put the value of s in formula =√23(23-13) (23-13) (23-20) =√23*10*10*3 =√23*2*5*2*5*3 Area = 10√69 cm square

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Find the class mark of the class 100 to 120

Posted by Sabnam Ara 9 months, 1 week ago

CBSE > Class 09 > Mathematics

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Anshika Choudhary 9 months, 1 week ago

We have given interval is 100 - 120. Here upper limit is 120 and lower limit is 100. Hence, answer is 110.

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Ch.6

Posted by Prince Raghav 9 months, 1 week ago

CBSE > Class 09 > हिंदी ए

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Write down steps to create mailing labels to paste on wedding cards

Posted by Wednesday Shelby 9 months, 1 week ago

CBSE > Class 09 > Information Technology (402)

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Sonali Satapathy 9 months, 1 week ago

Open a new Google Docs. Open Labelmaker. Select a template. Insert a table. Add an image and text. Remove table borders. Create your wedding labels. Preview before printing.

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Papaya is the healtiest fruit with a list of properties that is long and exhaustive

Posted by Gayathri Sri 9 months, 1 week ago

CBSE > Class 09 > English Lang & Lit. (184)

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Who is tsar nicoles

Posted by Hanshika .K 9 months, 1 week ago

CBSE > Class 09 > Social Science

5 answers

Akash Samantara 9 months ago

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Mayank Malhotra 9 months, 1 week ago

Emperor of russian

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Divyanshi Songara 9 months, 1 week ago

Emperor of Russian

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Anirudh Sharma 9 months, 1 week ago

No he was the king of RUSSIA

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Yashasvi Chourasia 9 months, 1 week ago

King of germany

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Choose the correct options to fill in the blanks to complete the description. (a) Communication skills (i)..........(may/ought to/used to) take a lifetime to master. It is a vital life skill and something that (ii) ...........(should not/would /can) be overlooked. It's never too late to work on your communication skills and by doing so, you may well find that you improve your quality of life. Poor communication skills, on the other hand, (iii)............(can/have to/must) sour relationships from business to personal.

Posted by Bdud Guru 9 months, 1 week ago

CBSE > Class 09 > Communicative English (101)

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The M581 Company 9 months ago

(a) Communication skills (i) may take a lifetime to master. It is a vital life skill and something that (ii) should not be overlooked. It's never too late to work on your communication skills, and by doing so, you may well find that you improve your quality of life. Poor communication skills, on the other hand, (iii) can sour relationships from business to personal.

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Who are conservative? What is conservatism

Posted by Saiyad Iqra Nawaz 9 months, 1 week ago

CBSE > Class 09 > Social Science

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a =√5+√2/√5-√2. and b =√5-√2/√5+√2 then find the value of a²+ab+b²/a²-ab+b²

Posted by Deshu Kaur 9 months, 1 week ago

CBSE > Class 09 > Mathematics

1 answers

Anshika Choudhary 9 months, 1 week ago

a = (√5 + 2)/(√5 – 2) b = (√5 – 2)/( √5 + 2) Concept: First rationalize the values of ‘a’ and ‘b’ and then proceed. Formula used: (a + b)2 = a2 + b2 + 2ab (a + b)(a – b) = a2 – b2 Calculation: ∵ a = (√5 + 2)/(√5 – 2) ⇒ a = [(√5 + 2)( (√5 + 2)]/[(√5 – 2)(√5 + 2)] ⇒ a = [(√5 + 2)2]/[(√5)2 – (2)2] ⇒ a = [5 + 4 + 4√5]/(5 – 4) ⇒ a = (9 + 4√5) Similarly; b = (√5 – 2)/( √5 + 2) ⇒ b = [(√5 – 2)(√5 - 2)]/[(√5 + 2)(√5 – 2)] ⇒ b = [(√5 – 2)2]/[(√5)2 – (2)2] ⇒ b = [5 + 4 – 4√5]/(5 – 4) ⇒ b = (9 – 4√5) Now, a2 + b2 + ab = (a + b)2 – ab ⇒ (9 + 4√5 + 9 – 4√5)2 – [(9 + 4√5)( 9 – 4√5)] ⇒ (18)2 – [(9)2 – (4√5)2] ⇒ 324 – (81 – 80) ⇒ 324 – 1 ⇒ 323 ∴ The value of the given expression is 323.

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Posted by Shahaji Kamthe 9 months ago

CBSE > Class 09 > Science

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Jasnoor Kaur 9 months, 1 week ago

Atom is the smallest entity of an element!

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Shahaji Kamthe 9 months ago

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A gas enclosed in a vessel at 30°C cooled in a vessel to attain a new temperature of 10°C. What will happen? (a) Molecular motion will be rapid (b) Molecular Motion stops (c) distance between molecules increases (d) distance between molecules decreases

Posted by Krrish Kumar 9 months, 1 week ago

CBSE > Class 09 > Science

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Samrat Pande 8 months, 3 weeks ago

D. Distance between molecule decreases

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Shakthi Piriyan 9 months ago

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Posted by Omveer Singh 9 months ago

CBSE > Class 09 > सामाजिक विज्ञान

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Manshi Kumari 9 months, 1 week ago

Nirdanta rekha ko paribhashit kare avam nirdanta ko manne me sasko ke mahatab btaiye

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Ifx+y=8and xy=15then x²+y²

Posted by Raghav Gurjar 9 months, 1 week ago

CBSE > Class 09 > Mathematics

3 answers

Anurag Singh 9 months, 1 week ago

x+y=8 xy=15, using : (x+y)^2 = x^2 + y^2 +2(x)(y) , (8)^2 = x^2 + y^2 + 2(15) , 64 = x^2 + y^2 + 30, 64 - 30 = x^2 + y^2 , 34 = x^2 + y^2

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Anshika Choudhary 9 months, 1 week ago

x+y=8 xy=15 using : (x+y)^2 = x^2 + y^2 +2(x)(y) (8)^2 = x^2 + y^2 + 2(15) 64 = x^2 + y^2 + 30 64 - 30 = x^2 + y^2 34 = x^2 + y^2

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Anurag Singh 9 months, 1 week ago

x+y=8 xy=15 using : (x+y)^2 = x^2 + y^2 +2(x)(y) (8)^2 = x^2 + y^2 + 2(15) 64 = x^2 + y^2 + 30 64 - 30 = x^2 + y^2 34 = x^2 + y^2

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O.9bar in p/q form

Posted by Aditya Sharma 9 months, 1 week ago

CBSE > Class 09 > Mathematics

1 answers

Abhijit Garai 9 months, 1 week ago

Let x = 0.999 10x = 9.999 10x - x =9.999 -0.999 9x = 9 x = 9/9 x = 1

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What was Einstein's theory of relativity?

Posted by Asim Momin 9 months, 1 week ago

CBSE > Class 09 > English Lang & Lit. (184)

2 answers

Ankush Rana 9 months ago

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Ankush Rana 9 months ago

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What was Einstein's theory of relativity

Posted by Asim Momin 9 months, 1 week ago

CBSE > Class 09 > English Lang & Lit. (184)

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Posted by Gauri Vikhar ? 9 months, 1 week ago

CBSE > Class 09 > Mathematics