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Evaluate after rationalizing the denominator of 25/√ 40 + √ 80 .It is being given that √5=2.236 and √10=3.162

Posted by Stephy Singh 5 years, 4 months ago

CBSE > Class 09 > Mathematics

0 answers

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2.5 in number line

Posted by Hir Hir 5 years, 4 months ago

CBSE > Class 09 > Mathematics

1 answers

Sia ? 5 years, 4 months ago

We know that 2.5 is more than two but less than three. There are 5- tenths in it. Divide the unit length between 2 and 3 into 10 equal parts and take 5 parts as shown below :

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Facrorise x^+8x+7

Posted by Diya Sony 5 years, 4 months ago

CBSE > Class 09 > Mathematics

2 answers

Diya Sony 5 years, 4 months ago

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Divija Bansal 5 years, 4 months ago

what is the exponent of X here?

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2x + y = 5 Graph of a linear equation in two variables??

Posted by Vaibhav Awasthi 5 years, 4 months ago

CBSE > Class 09 > Mathematics

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find the sum 3√5 and 2√7

Posted by Teju Baskar 5 years, 4 months ago

CBSE > Class 09 > Mathematics

2 answers

Varun Varunarora 5 years, 4 months ago

6root 35

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Surbhii Mittal 5 years, 4 months ago

3×2 √5×√7 =6√35

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Factorise 27x³+125z³

Posted by Nikita Shekhar 5 years, 4 months ago

CBSE > Class 09 > Mathematics

1 answers

Hrishikesh Patil 5 years, 4 months ago

(3x)^3+(5z)^3 (3x+5z)^3 (3x+5z)(3x+5z)(3x+5z)

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Evaluate (x+4) (x-5) using identities

Posted by Latha Ganta 5 years, 4 months ago

CBSE > Class 09 > Mathematics

1 answers

Nikita Shekhar 5 years, 4 months ago

x²+(4-5)x+(4×-5) x²-1x-20

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Find zero of the polynomial P(x) = 3x + 1, x = ½ Ans:

Posted by Vedant Himte 5 years, 4 months ago

CBSE > Class 09 > Mathematics

4 answers

Vedant Himte 5 years, 4 months ago

3x + 1, x=1/2 = 3x +1 = 0 = 3x = -1 = x = -1/3 So, P(-1/3)= 3 ×(-⅓) +1 [ 3 and 3 will get canceled ] = -1+ 1 = 0

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Surbhii Mittal 5 years, 4 months ago

3×1\2 +1 =0 lcm of 2,1 =5/2=0 SO, FINAL ANSWER IS 5 BECA.2×0÷5=5

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Saanu Siju 5 years, 4 months ago

3 × 1÷2+1 =5÷2

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Punit Kumar 5 years, 4 months ago

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Motion a man covered a distance of 3km in 5minited that his speed is

Posted by Kanishka Panchal 5 years, 4 months ago

CBSE > Class 09 > Mathematics

1 answers

Divija Bansal 5 years, 4 months ago

5 minutes = (5÷60) hrs =1/12hrs v=s/t =3÷1/12 =3x12 =36 km/hr

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If x=2-√3 find the value of (x+1÷x)square

Posted by Aditya Shekhar 5 years, 4 months ago

CBSE > Class 09 > Mathematics

2 answers

Divija Bansal 5 years, 4 months ago

x+1/x²= 2-√3+2+√3 =4

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Divija Bansal 5 years, 4 months ago

1/x=1/2-√3 =1/2-√3 x 2+√3 / 2+√3 =2+√3 / 2² - (√3)² =2+√3

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Find three irrational no between -11 and - 12

Posted by Sharleen Kaur 5 years, 4 months ago

CBSE > Class 09 > Mathematics

1 answers

Aniket Maurya 5 years, 4 months ago

√132,

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Find the area of trapezium as its parallel sides are 25cm,13cm and other sodes are 15 cm and 15cm [using herons formula or any formula]

Posted by Krishnaansh Viz 5 years, 4 months ago

CBSE > Class 09 > Mathematics

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Convert the decimal number 23.43 in the form p/q

Posted by Harsh Mehta 5 years, 4 months ago

CBSE > Class 09 > Mathematics

1 answers

Manasvi Sood 5 years, 4 months ago

2343/100

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Formula of herons

Posted by Abhinav Panwar 5 years, 4 months ago

CBSE > Class 09 > Mathematics

3 answers

Manasvi Sood 5 years, 4 months ago

S(semi perimeter) = a+b+c/2 Area by herons formula= √s(s-a)(s-b)(s-c)

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Aniket Maurya 5 years, 4 months ago

S=a+b+c/2

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Aniket Maurya 5 years, 4 months ago

√s(s-a)×(s-b)×(s-c )

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Represent underroot 11on the number line

Posted by Shantanu Chaturvedi 5 years, 4 months ago

CBSE > Class 09 > Mathematics

0 answers

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3x+1,x=-1/3

Posted by Ashwani Malik 5 years, 4 months ago

CBSE > Class 09 > Mathematics

3 answers

Manasvi Sood 5 years, 4 months ago

3*-1/3+1 -1+1 =0

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Richa Shree 5 years, 4 months ago

It's the remainder of 3x+1. It is based on the remainder theorem

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Ashwani Malik 5 years, 4 months ago

It is a polynomial

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267ka underroot

Posted by Manas Gupta 5 years, 4 months ago

CBSE > Class 09 > Mathematics

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How many rational number number find between two different rational number?

Posted by Satyam Jha 5 years, 4 months ago

CBSE > Class 09 > Mathematics

3 answers

Nikhil Singh 5 years, 4 months ago

there are infinite numbers between two rational numbers

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Richa Shree 5 years, 4 months ago

Infinite rational numbers

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Satyam Jha 5 years, 4 months ago

I think infinite

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If a=1/(7+4√3)and b=1/(7-4√3) ,then find the value of ; a^2+b^2and a^3+b^3

Posted by Nonu Kkr 5 years, 4 months ago

CBSE > Class 09 > Mathematics

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2√2a3 +3√3b3+c3-3√6abc

Posted by Ishaan Sood 5 years, 4 months ago

CBSE > Class 09 > Mathematics

1 answers

Ankit Raj 5 years, 4 months ago

Solution:- since, x=√2a y=√3b z=c So, x³+y³+z³-3xyz=(x+y+z)(x²+y²+z²-xy-yz-zx) Now, (√2a)³+(√3b)³+(c)³-3•√2a•√3b•c =(√2a+√3b+c)(2a²+3b²+c²-√6ab-√3bc-√2ca).

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Verify that : x³+y³=(x+y)(x²-xy+y²)

Posted by Hasini Thakkalapally 5 years, 4 months ago

CBSE > Class 09 > Mathematics

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Find the correct alternative abb_ _ab_b_bb aa

Posted by Som Badmash 5 years, 4 months ago

CBSE > Class 09 > Mathematics

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Find the value of x if ( 6 by 5) ^x multiply(5/6)^2x

Posted by Raj Wardhan 5 years, 4 months ago

CBSE > Class 09 > Mathematics

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2 upon root5 + root3 +1 upon root2 + root3 minus 3 upon root5 + root2

Posted by Mohit Rajpurohit 5 years, 4 months ago

CBSE > Class 09 > Mathematics

1 answers

Sahil Goswami 5 years, 4 months ago

2upon root5 +root3+1upon root2+root3-3upon root5+root2=2upon root8+1upon root5-3upon root7=2+1-3 upon root8+root3+root7=root20

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Rationalize the denominator of two under root 3 + 5 under root 7 upon under root 5 + under root 6? How we can rationalize it?

Posted by Pratyush Panwar 5 years, 4 months ago

CBSE > Class 09 > Mathematics

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If x=[ (2p+3q)^1/2+(2p-3q)^1/2] /[(2p+3q)^1/2-(2p-3q)^1/2],find the value of 3qx^2-4px+3q

Posted by Nonu Kkr 5 years, 4 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

1.272727.......=1.27

Posted by Rahinish Rahinish 5 years, 4 months ago

CBSE > Class 09 > Mathematics

0 answers

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Can anyone give me tips to practice maths.plzz

Posted by Pradhyumn Thapliyal 5 years, 4 months ago

CBSE > Class 09 > Mathematics

4 answers

Shambhoo Prasad Jhariya 5 years, 4 months ago

practise

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Pradhyumn Thapliyal 5 years, 4 months ago

Plss

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Pradhyumn Thapliyal 5 years, 4 months ago

Plzz dedo

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Suby Mahajan 5 years, 4 months ago

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Find x + y = -14 & xy=84

Posted by Ritik Singh 5 years, 4 months ago

CBSE > Class 09 > Mathematics

1 answers

Surya Jatt? 5 years, 4 months ago

X=-112,y=98

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Find the rational number between -2and5

Posted by Ritik Singh 5 years, 4 months ago

CBSE > Class 09 > Mathematics

2 answers

Sia ? 5 years, 4 months ago

Given numbers are -2 and 5.
A rational number between - 2 and 5 is {tex}\frac{1}{2}[-2+5]=\frac{3}{2}{/tex}
A rational number between {tex}\frac{3}{2}{/tex} and 5 is {tex}\frac{1}{2}\left[\frac{3}{2}+5\right]=\frac{1}{2}\left[\frac{3+10}{2}\right]=\frac{13}{4}{/tex}
Therefore, two rational numbers between -2 and 5 are {tex}\frac{3}{2} {/tex}and {tex}\frac{13}{4}.{/tex}

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Diya Sony 5 years, 4 months ago

-2 = -20/10 5. = 50/10 Some rational number between -2 and 5 are... -19/10, 1/10, 5/10, 49/10

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