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The coach of a cricket team buys 3 bats and 6 balls for rupees 3900. Later , she buys another bat and 3 more balls of the same kind for rupees 1300.Represent this situation algebraically and geometriacally.

Posted by Řàžíňà Přáđhãņ 3 years, 7 months ago

CBSE > Class 10 > Mathematics

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show that 9n can't end with 2 for any integer n

Posted by Team Hind Official 3 years, 7 months ago

CBSE > Class 10 > Mathematics

1 answers

Anshu Tyagi 3 years, 7 months ago

9n can't end with the digit zero because the prime factorization of any natural number should always contain 2 and 5 as their prime factors. The prime factorization of 9n is 1×9

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2xsquare-4xsquare

Posted by Karan Soni 3 years, 7 months ago

CBSE > Class 10 > Mathematics

1 answers

Shubham Vats 3 years, 7 months ago

-2x square

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An ice cream company filled a cone with cream. They decided to give extra cream including cones as shown in the figure. The outer radius is 3 cm and the inner radius is 1 cm with 2 cm. The company decided to make an efficient one by changing only one parameter.

Posted by Dinesh Raja 3 years, 7 months ago

CBSE > Class 10 > Mathematics

1 answers

Loveen Kaur 3 years, 7 months ago

Help

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The company decided to increase the outer radius to 4 cm. What will be the volume?

Posted by Dinesh Raja 3 years, 7 months ago

CBSE > Class 10 > Mathematics

1 answers

Ananya Tiwari 3 years, 7 months ago

V=34πR3−34πr3 volume is constant. ⇒dtdV=0 ⇒4πR2dtdR−4πr2dtdr=0 ⇒64dtdR−16(1)=0 ∴dtdR=0.25cm/sec

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Show that the cube of any positive integer of form 4m,4m+1,

Posted by Saransh Tiwari 3 years, 7 months ago

CBSE > Class 10 > Mathematics

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show that root 11 + root 7 is irrational

Posted by Manasvi Bhalki 3 years, 7 months ago

CBSE > Class 10 > Mathematics

1 answers

Ananya Tiwari 3 years, 7 months ago

√11+√7 Let, a= √11+√7 a= √11+√7 a-√11=√7 (a-√11)²=(√7)² a²-2√11a+11²=49 a² -2√11a+121 = 49 a²-2√11a+121-49=0 a²-2√11a+72=0 but √11 is irrational number so √11+√7 is an irrational number

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avoid square marble tile of a side 84 CM as a green marble in its centre with all its four corners in the form of quadrants find the area of the green portion for 20 such tiles

Posted by Netravti Bhat 3 years, 7 months ago

CBSE > Class 10 > Mathematics

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X² + x - ( a+1)(a+2) = 0

Posted by Sonia Sonia 3 years, 7 months ago

CBSE > Class 10 > Mathematics

2 answers

Anshu Tyagi 3 years, 7 months ago

X=-1/2

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Ayush Kumar 3 years, 7 months ago

a equals -3/2

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find the 2 consecutive natural no the sum of whose squares is 145

Posted by Jaya Sharma 3 years, 7 months ago

CBSE > Class 10 > Mathematics

2 answers

Amrita Jha 3 years, 7 months ago

(n+1)² (n+2)²=145 Solve it by (a+b)² formula

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Sam Khan 3 years, 7 months ago

8,9

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Chapter 10 I can't understand

Posted by Chanchal Tanwar 3 years, 7 months ago

CBSE > Class 10 > Mathematics

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If the pth, qth and rth terms of an A.P. be a, b and c respectively, then prove that a(q−r)+b(r−p)+c(p−q)=0.

Posted by Aqdus Malik 3 years, 7 months ago

CBSE > Class 10 > Mathematics

1 answers

Priyanshu Chauhan 3 years, 7 months ago

2-4

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Using euclides algorithm find the HCF of 1651 and 2032 Express the HCF in the form (1651m + 2032 n )for some integer m and n

Posted by Riya Tomar 3 years, 7 months ago

CBSE > Class 10 > Mathematics

2 answers

Deepakpaswan Paswan 3 years, 7 months ago

Two excuse minus four x equal to six equal to zero

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Gourav Mahto 3 years, 7 months ago

8g9g

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If theta is equal to 30 degree verify that 10 to theta is equal to 2 + tan theta upon 1 - 10 square theta

Posted by Shekhar Sharma 3 years, 7 months ago

CBSE > Class 10 > Mathematics

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What is tsa of sphere

Posted by Anas Malik 3 years, 7 months ago

CBSE > Class 10 > Mathematics

3 answers

Harsh Raj 3 years, 7 months ago

4πr²

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Adnan Ed 3 years, 7 months ago

4π(r)square

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Mahesh Patil 3 years, 7 months ago

4pie R square

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A hemisphere depression is cut out from one face of a cubical wooden block such that the diameter l of the hemisphere is equal to the edge of the cube. Determine the surface area of the remaining solid

Posted by Virendra Singh 3 years, 7 months ago

CBSE > Class 10 > Mathematics

3 answers

Vamsi Koyya 3 years, 7 months ago

Surface area of remaining solid=csa of cube +csa of hemisphere

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Ananya Tiwari 3 years, 7 months ago

Draw the diagram als

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Ananya Tiwari 3 years, 7 months ago

It is given that a hemisphere of radius 2l is cut out from the top face of the cuboidal wooden block. Therefore, surface area of the remaining solid = surface area of the cuboidal box whose each edge is of length l − Area of the top of the hemispherical part + curved surface area of the hemispherical part =6l2−πr2+2πr2 =6l2−π(2l)2+2π(2l)2 =6l2−4πl2+2πl2 =4l2(24+π) sq.units

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x^2+7x+10=0 find the roots

Posted by Abhay Kumar 3 years, 7 months ago

CBSE > Class 10 > Mathematics

2 answers

Ananya Tiwari 3 years, 7 months ago

x²+7x+10=0 x²+5x+2x+10=0 x(x+5)+2(x+5)=0 (x+2)(x+5)=0 x=-2 ; x=-5

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Abhishek Chaudhary 3 years, 7 months ago

X2+7x+10=0 X2+5x+2x+10 =0 X(x+5)+2(x+5)=0 (x+5)(x+2) =0 x=-5,x=-2

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Draw a line segment of length 12 cm and divide it into the ratio 6:7

Posted by Mumtaj Behera 3 years, 7 months ago

CBSE > Class 10 > Mathematics

2 answers

Nivetha Rajesh 3 years, 7 months ago

Refer page no. 217 fig.11.2 ,i have said to take 45°oppo at B ..just try in this way

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Nivetha Rajesh 3 years, 7 months ago

First draw a line segment of 12 cm and mark as AB . Now draw 45° at A and at B in the opposite side . Extend the ray from both the sides . Now take ur compass and measure one cm . Draw 6 arcs in 45° ray at point of A and 7 arcs from B . Now join the sixth ray to seventh ray . Now measure the both parts

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Find the quadratic polynomial sum of what zeroes is 8 & product is 12

Posted by Sushrut Vaidya 3 years, 7 months ago

CBSE > Class 10 > Mathematics

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A right angle triangle ABC, right angled at B, circumscribes a circle of radius 'r'. If AB & BC are of lengths 8cm and 6cm respectively, find the value of 'r

Posted by Prachi Bunkar 3 years, 7 months ago

CBSE > Class 10 > Mathematics

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The radii of the bases of two solid right circular cones of same height cones are r1 and r2 respectively.the cones are melted and recast into a cylinder. Find the base radius of the cylinder.

Posted by Prachi Bunkar 3 years, 7 months ago

CBSE > Class 10 > Mathematics

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What is parrellgram

Posted by Praveen Pathak 3 years, 7 months ago

CBSE > Class 10 > Mathematics

3 answers

Adnan Ed 3 years, 7 months ago

Parallelogram is a quadrilateral with two pairs of parallel sides. The opposite side of a parallelogram are of equal length and the opposite angles of a parallelogram are of equal measure.

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Mitali Kumar 3 years, 7 months ago

A parallelogram have two parallel sides and two parallel angles is known as parallelogram .and it is made up of four lines .. Hope it is useful for you Thank you...

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Dev Krishna Sharma Sharma 3 years, 7 months ago

A Parallogram have two parallel sides and two parallel angles

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(12)3

Posted by Sofiya Khan 3 years, 7 months ago

CBSE > Class 10 > Mathematics

1 answers

Khushi Ram Baswal 3 years, 7 months ago

(12)3 =12×12×12 =. 1728

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if if sin theta is equal to a square minus b square by a square + b square find the values of all t ratio of theta

Posted by Mahi Kumari 3 years, 7 months ago

CBSE > Class 10 > Mathematics

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9x²+6px+(p²-q²)=0

Posted by Saloni Sharma 3 years, 7 months ago

CBSE > Class 10 > Mathematics

1 answers

Butool Khatoon 3 years, 7 months ago

a= 9 ,b=-6p ,c=(p^-q^) D= b^-4ac

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A positive

Posted by Jan Jan 3 years, 7 months ago

CBSE > Class 10 > Mathematics

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Find Euclid's lemma of 135 and 85

Posted by Yash Garg 3 years, 7 months ago

CBSE > Class 10 > Mathematics

2 answers

Harshpreet Singh 3 years, 7 months ago

Euclid formula of 135 and 85 is 135>85 Dividend= divisor × quotient + remainder 135 = 85×1+50 85 = 50×1+35 50 = 35×1+15 35 = 15×2+5 15 = 5×3+0 So the HCF of 135 and 85 is 5

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Harshpreet Singh 3 years, 7 months ago

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What is the hole square of a+b

Posted by Ishant Kumar Mishra 3 years, 7 months ago

CBSE > Class 10 > Mathematics

2 answers

Yash Garg 3 years, 7 months ago

a² + 2ab + b²

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Harshita Sharma 3 years, 7 months ago

a2 +b2+2ab

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use euclid's division lemma to show that the square of any positive integer cannot be of the form 6m+2 or 6m+5 for any integer m

Posted by Nauseen Parwin 3 years, 7 months ago

CBSE > Class 10 > Mathematics

1 answers

Sharvil Naregalkar 3 years, 7 months ago

Hint: Consider as x is in the form of 3q, 3q + 1, 3q + 2. Where remainder r is greater than or equal to zero and less than ' b' . ( Eucildz division lemma). Then by squaring both the sides, solve the equations by using algebraic identities and then prove it

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Ncert exercise 3.1

Posted by Aps 12 Ashutosh 10Tha 3 years, 7 months ago

CBSE > Class 10 > Mathematics