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  • 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
  • 1 answers

Shubham Vats 3 years, 7 months ago

-2x square
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Ananya Tiwari 3 years, 7 months ago

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

Anshu Tyagi 3 years, 7 months ago

X=-1/2

Ayush Kumar 3 years, 7 months ago

a equals -3/2
  • 2 answers

Amrita Jha 3 years, 7 months ago

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

Sam Khan 3 years, 7 months ago

8,9
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  • 3 answers

Harsh Raj 3 years, 7 months ago

4πr²

Adnan Ed 3 years, 7 months ago

4π(r)square

Mahesh Patil 3 years, 7 months ago

4pie R square
  • 3 answers

Vamsi Koyya 3 years, 7 months ago

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

Ananya Tiwari 3 years, 7 months ago

Draw the diagram als

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
  • 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

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
  • 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

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
  • 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.

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...

Dev Krishna Sharma Sharma 3 years, 7 months ago

A Parallogram have two parallel sides and two parallel angles
  • 1 answers

Khushi Ram Baswal 3 years, 7 months ago

(12)3 =12×12×12 =. 1728
  • 1 answers

Butool Khatoon 3 years, 7 months ago

a= 9 ,b=-6p ,c=(p^-q^) D= b^-4ac
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  • 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

Harshpreet Singh 3 years, 7 months ago

5
  • 2 answers

Yash Garg 3 years, 7 months ago

a² + 2ab + b²

Harshita Sharma 3 years, 7 months ago

a2 +b2+2ab
  • 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
  • 0 answers

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