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Evaluate each of the following using identities of (2x -1/2)²

Posted by Kusum Gurung 4 years ago

CBSE > Class 09 > Mathematics

1 answers

Akelaash Charukesh 4 years ago

(a-b)²=a² - 2ab + b² =(2x)² - 2(2x)(1/2) + (1/2)² =4x - 2x + 1/4 =4x - 2x + 1/4 =2x+1/4

ANSWER

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Posted by Izumi Uchiha 4 years ago

CBSE > Class 09 > Mathematics

3 answers

Izumi Uchiha 4 years ago

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Izumi Uchiha 4 years ago

If u r online then reply me... @broken_girl_35

ANSWER

Is there any ?? ? Plzz reply me. Try not to fake..... Bcz it's important request for them...

Posted by Izumi Uchiha 4 years ago

CBSE > Class 09 > Mathematics

3 answers

Izumi Uchiha 4 years ago

No I'm not korean, but i need help from korean people...

Izumi Uchiha 4 years ago

??= korean

Izumi Uchiha 4 years ago

Oo sorry

ANSWER

3a-(b-2a)

Posted by Maneet Kumar 4 years ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

In a cylinder, if radius is doubled and height is halved, its curved surface area will be: *

Posted by Kawaljeet Kaur 4 years ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

Three angles of a quadrilateral are equal and the fourth angle is equal to 124 degrees.find each of the equal angles of the quadrilateral

Posted by Yuktha Manoj 4 years ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

A cricket team plays 17 matches and they won 13 matches. What is the win percentage ?

Posted by Shubham Kumar 4 years ago

CBSE > Class 09 > Mathematics

2 answers

Dhruv Banjare 4 years ago

This solved is wrong

Dhruv Banjare 4 years ago

Total won matches divided by Total match played by the team , multiple 100 13/17×100 = 76% Hence the win percentage is 76 %

ANSWER

Ths probability of guessing the correct answer to a certain question is x/2 if the probability of not guessing the correct answer is 2/3 then find x

Posted by Tanish Sahu 4 years ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

How much more water is needed to fill the tank to its brim

Posted by Pradeepa Yadav R 4 years ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

ANYBODY ELSE IS HERE

Posted by Tejas T. 4 years ago

CBSE > Class 09 > Mathematics

3 answers

Manaswini ??? 4 years ago

I am new to this app can anyone tell me more about this app pls

Manaswini ??? 4 years ago

S

Anand Anshu 4 years ago

Yes

ANSWER

HAE DO ANYBODY LOVE'S ME ????

Posted by Tejas T. 4 years ago

CBSE > Class 09 > Mathematics

3 answers

Tejas T. 4 years ago

Oooo etni nafrat

Sanket .........✨ 4 years ago

? Ek no. khushi ??

Rashmi Sharma 4 years ago

Nooo

ANSWER

The difference between the total surface area of cube of side 4cm and its lateral surface area is

Posted by Parth Rai 4 years ago

CBSE > Class 09 > Mathematics

4 answers

Prem Prakash 4 years ago

32cm^2

Kiru Moyal 4 years ago

Total surface area= 6a×a =6×4×4 =96cm^2 Lateral surface area= 4a×a =4×4×4 =64cm^2 So,difference between them =96-64 =32cm^2

Prince Goyal 4 years ago

Total surface area= 6a×a =6×4×4 =96cm Leteral surface area= 4a×a =4×4×4 =64cm So,difference between them =96-64 =32cm

Rudra Kourav 4 years ago

32cm

ANSWER

Polynmials

Posted by Shadik Alam 4 years ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

Find the remainder when x 3−ax2+6x−a is divided by x-a.

Posted by Satyajit Ray 4 years ago

CBSE > Class 09 > Mathematics

2 answers

Prince Goyal 4 years ago

g(x)=0 x-a=0 x=a Put the value of x in p(x) p(a)=3-ax2+6x-a 3-a×2+6×x=a 3-2a+6x=a ...3-2a+6a=a 3=2a-6a+a 3=-3a a=3÷-3 a=-3÷3 . a=-1

Sanket .........✨ 4 years ago

x - a = 0 , x = a Then put the value of x in p(x)

ANSWER

What is the area of rectangle ?

Posted by Saumya Rwt 4 years ago

CBSE > Class 09 > Mathematics

2 answers

Kiru Moyal 4 years ago

Length * breadth

Rituja Priya 4 years ago

Area of the rectangle = length x breath sq. units

ANSWER

What is the perimeter of rectangle

Posted by Saumya Rwt 4 years ago

CBSE > Class 09 > Mathematics

1 answers

Rituja Priya 4 years ago

Perimeter of a rectangle = 2 x ( length+ width)

ANSWER

Hindi meaning of embedded?

Posted by Rashmi Sharma 4 years ago

CBSE > Class 09 > Mathematics

2 answers

Vinit Kumar Shee 4 years ago

Kaku

Bhavya Sachdeva 4 years ago

अंतर्निहित

ANSWER

Herons ka kya formula hai

Posted by Nilesh Khandal 4 years ago

CBSE > Class 09 > Mathematics

5 answers

Laxmipriya Naik 4 years ago

Area of a triangle =√s(s-a)(s-b)(s-c)

Sameer Chaudhary 4 years ago

√s(s-a)(s-b)(s-c)

Khushi Sharma 4 years ago

a,b,c are the sides of triangle Semi perimeter ( s ) = a + b + c / 2 Area = √s(s-a) (s-b) (s-c)

Bhavya Sachdeva 4 years ago

हिरोन फार्मूला के सम्बन्ध में तथ्य यदि a, b और c त्रिभुज की तीन भुजाएँ हो, तो अर्द्धपरिमाप, s = (a + b + c)/2 होता है. चतुर्भुजों का क्षेत्रफल निकालने करने में भी हीरोन के सूत्र का प्रयोग किया जा सकता है. हीरोन का सूत्र चक्रीय चतुर्भुज का क्षेत्रफल निकालने के लिए ब्रह्मगुप्त के सूत्र की एक विशेष परिमाण है.

K_Hushii 🍁 4 years ago

Area =√s(s-a) (s-b) (s-c)

ANSWER

If two straight lines intersect each other then prove that the ray opposite to the bisector of one of the angels so formed bisects the vertically opposite angle.

Posted by Md Kaif 4 years, 1 month ago

CBSE > Class 09 > Mathematics

1 answers

Manaswini ??? 4 years ago

Given AB and CD are straight lines which intersect at O. OP is the bisector of ∠AO. To prove: OQ is the bisector of ∠BOD. Proof: AB, CD and PQ are straight lines which intersect in O. ∠AOP=∠BOQ(vertically opposite angles) ∠COP=∠DOQ(vertically opposite angles) ∠AOP=∠COP(OP is the bisector of ∠AOC) ∴∠BOQ=∠DOQ Thus, the rate opposite to the bisector of one of the angles thus formed bisects the vertically opposite angle. Similarly, the bisection of ∠AOD also bisects the ∠BOC.

ANSWER

A solid cube of side 12 cm is cut into eight cubes of equal volume.What will be the side of the new cube? Also,find the ratio between their surface areas.

Posted by Vishu Bastara 4 years, 1 month ago

CBSE > Class 09 > Mathematics

1 answers

Ishika Sharma 4 years, 1 month ago

Volume of the bigger cube= (A)3=(12)3=1728cm3(cube) Volume of small cube = 1728/8= 216cm3 Volume of small cube =a3 = 217cm3 3√216cm3 = a3 3√6×6×6=a A=6 Ratio =SA of big cube /SA of small cube 6A2/6a2 = 12×12/6×= 4/1 So the ratio will be 4:1

ANSWER

If the diameter of copper sphere 6 cm is recast into wire of of length 3.6 m find the thickness of the wire

Posted by Bharti Sharma 4 years, 1 month ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

Please tell me. how to justify the construction? Please tell me

Posted by Adiba Mansuri 4 years, 1 month ago

CBSE > Class 09 > Mathematics

1 answers

Anand Anshu 4 years ago

With mind set my dear

ANSWER

Which of the following expressions is a polynomial in one variable? (a) x+2/x+3 b)3√x+2/√x+5 c)√2x^x-√3x+6 d) x^10+y^5+8

Posted by Krish Kanwal 4 years, 1 month ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

Chapter 9th

Posted by Sapna Rana 4 years, 1 month ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

A heap of wheat is in the form of a cone whose diameter is 10.5 m and height is 3 m. Find its volume. The heap is to be covered by canvas to protect it from rain. Find the area of the canvas required

Posted by Adiba Mansuri 4 years, 1 month ago

CBSE > Class 09 > Mathematics

2 answers

Adiba Mansuri 4 years, 1 month ago

Thank you ?

Shubhda Kabra 4 years, 1 month ago

volume is 1/3pier^2h therefore 1/3*22/7*5.25*5.25*3 will give volume and find slant height from radius and height and then find area pie*r*l

ANSWER

P(x)=x^³+1is not polynomial give reason

Posted by Jasmeen Kaur 4 years, 1 month ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

If p(x)= x+3 then find the value of p(x)+p(-x).

Posted by Aditi Vaishya 4 years, 1 month ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

In Fig ABCD is rectangle in which diagonal AC is produced to E. If angle ECD=146° Find angle AOB

Posted by Arshdeep Kaur 4 years, 1 month ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

Diagnol of 3 faces of a cuboid are x,y,z respectively. Find volume

Posted by Shashank Yadav 4 years, 1 month ago

CBSE > Class 09 > Mathematics

2 answers

Naresh Prajapati 4 years, 1 month ago

Volume of cuboid =l×b×h

Amarjeet Saw 4 years, 1 month ago

K

ANSWER

12. Calculate the area of the shaded region in the fig 1,given below

Posted by Mannu Samal 1 4 years, 1 month ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

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