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27-2/3

Posted by Abhi Wayanzz 4 years, 3 months ago

CBSE > Class 09 > Mathematics

1 answers

Yogita Ingle 4 years, 3 months ago

27 -2/3

= (81 - 2)/3

= 79/3

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ANSWER

The line 2x+ 3y=6 cuts the x axis at & at y axis

Posted by Suraj Rao 4 years, 3 months ago

CBSE > Class 09 > Mathematics

1 answers

Nirajkumar Prasad 4 years, 3 months ago

At x axis = 2x+3y=6 2x+3(0)=6 2x=6 x=3 Add y axis = 2x+ 3y= 6 2(0) + 3 Y =6 3 y = 6 y=2

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Find the capacity in litres of a conical vessel with . Height 12 cm,slant height 13 cm

Posted by Saanvi Sandhu 4 years, 3 months ago

CBSE > Class 09 > Mathematics

2 answers

Gaurav Seth 4 years, 3 months ago

Height (h) = 12 cm
Slant height (l) = 13 cm

Let r be the radius of the conical vessel.

Slant height (l)²= r²+h²

r = √ r² - h²

r = √13²– 12²

= √169 – 144

r = √25
r = 5 cm

Volume of the cone = 1/3 πr²h

= (1/3 × 22/7 × 5 × 5 × 12)
= (2200/7) cm³

Capacity of the vessel = (2200/7× 1000) L

= 11/35 l

Capacity of the vessel =11/35 L

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Saanvi Sandhu 4 years, 3 months ago

11:35 l

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ANSWER

3x plus 5/7is equal to -8/5 Solve this as linear equation in one variable

Posted by Parikshit Pasare 4 years, 3 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

Find the squareroot of127.69 by division method

Posted by Parikshit Pasare 4 years, 3 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

Find three rational numbers between 1/3and1/4

Posted by Sudhir Goswami 4 years, 3 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

Find 5 rational no between 8and9

Posted by Parikshit Pasare 4 years, 3 months ago

CBSE > Class 09 > Mathematics

2 answers

Insha Fatima 4 years, 3 months ago

8.1 , 8.2 , 8.3 , 8.4 , 8.5

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Ayush Anand 4 years, 3 months ago

We know the subdivisions between 8 and 9 are 8.1, 8.2, 8.3, 8.4, 8.5, 8.6, 8.7, 8.8, 8.9. You can take any 5 among these as these all are rational number, i.e., in the form of p/q where q≠0, like, 8.1=81/10 8.2=82/10.. and so on.. ThankYou

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Find the square root of following no by division method.show full description about it how to solve. 1) 15129 2) 127.69

Posted by Parikshit Pasare 4 years, 3 months ago

CBSE > Class 09 > Mathematics

1 answers

Gaurav Seth 4 years, 3 months ago

Step 1: Given Data

To find the square root of 15129 using Long division method

Therefore the value of √ 15129 =123

Step 2: Quotient of the square root of 15129 in long division method is 123

Step 3: Remainder of the square root of 15129 in long division method is 0

Step 4: The Final Value is 123

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The following observations has been arranged in ascending order . If the median of the data is 63 , find the value of x . 29 ,32,48,50,x,x+2,72,78,84,and 95.

Posted by Shivani Bisht 4 years, 3 months ago

CBSE > Class 09 > Mathematics

1 answers

Gaurav Seth 4 years, 3 months ago

29, 32, 48, 50, x, x+2, 72, 78, 84, 95

Total number of observation i.e n = 10

Given, median = 63

=> (5th value of observation + 6th value of observation)/2 = 63

[if number of observation is even then median = mean of (n/2)th value of observation + {(n/2) + 1}th value

of observation]

=> (x + x + 2)/2 = 63

=> (2x + 2)/2 = 63

=> 2x + 2 = 63*2

=> 2x + 2 = 126

=> 2x = 126-2

=> 2x = 124

=> x = 124/2

=> x = 62

Hence, the value of x is 62

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ANSWER

Find the rationalising factor of the following surds 5÷√3 3÷√14 1÷3√3 7÷2√5 2÷3√6

Posted by Gayathri Nayak 4 years, 3 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

x=3+√8 then the value of x²+1/x²

Posted by Jatin Shishodia 4 years, 3 months ago

CBSE > Class 09 > Mathematics

2 answers

Gaurav Seth 4 years, 3 months ago

x = 3+ √8

x = (3+√8)(3-√8) / (3-√8)

x = (9 -8) / (3-√8)

x = 1/ (3 -√8)

Or we can write 1/x = (3-√8)

Put the value and find out

x² +(1/x²) = x² + (1/x)²

So x² + 1/ x² = (3 +√8)² + (3 -√8)²

= 9+6√8+8 + 9–6√8+8

= 34.

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Rajat Singh 4 years, 3 months ago

(3+ under root 8)^2 + 1/(3+ under root 8)^2

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ANSWER

I WANT THE CUBE IDENTITY

Posted by Kaif Shaikh 4 years, 3 months ago

CBSE > Class 09 > Mathematics

1 answers

Rajat Singh 4 years, 3 months ago

1. (a+ b)^3 = a^3 - b^3 - 3ab( a+b ) 2. (a- b)^3 = a^3 - b^3 - 3ab ( a- b) 3. (a^3 + b^3) = ( a+b) (a^2 + ab+ b^2) 4. (a^3-b^3) = (a- b) (a^2 + ab + b^2)

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Find 5 rational number between 3/5 and 4/5

Posted by Anika Kuwal 4 years, 3 months ago

CBSE > Class 09 > Mathematics

2 answers

Ayush Tiwari 4 years, 3 months ago

3/5×6\6 =18/30 4/5×6/6 =24/30 .•.no. are 19/30, 20/30, 21/30, 22/30, 23/30.

1Thank You

Yogita Ingle 4 years, 3 months ago

First method to find rational number between two numbers:
Since we have to find 5 rational numbers between 3/5 and 4/5, so we will mutiply the numerator and denominator of the given numbers by 5+1, i.e. equal to 6.
We get,

3/5=3×6/5×6=18/30 and 4/5=4×6 / 5×6=24/ 30

Now, we have to find 5 rational numbers between 18/30 and 24/30, which will come as

(19/30),(20/30),(21/30),(22/30),(23/30)

=(19/3),(2×10 / 3×10),(7×3 / 10×3),(11×2 / 15×2),(23/ 30)

=(19/30),(2/3),(7/10),(11/15)

Thus, five rational numbers between 3/5 and 4/5 are =(19/30),(2/3),(7/10),(11/15) and (23/30)

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ANSWER

y³+y²+y+1. Find the factors

Posted by Swarali Mane 4 years, 3 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

Pls send the list of cutted portion of class 9th cbse

Posted by Bhakti Jugani 4 years, 3 months ago

CBSE > Class 09 > Mathematics

1 answers

Gaurav Seth 4 years, 3 months ago

Central Board of Secondary Education, CBSE has finally released the revised syllabus for classes 9 to 12 for the academic year 2020-21. HRD Minister Ramesh Pokhriyal Nishank announced the revised syllabus. As per the HRD Minister, the CBSE Syllabus for this year’s classes 9 to 12 has been reduced by 30%.

click on the given link for Revised Curriculum for the Academic Year 2020-21

<a href="http://cbseacademic.nic.in/revisedcurriculum_2021.html">http://cbseacademic.nic.in/revisedcurriculum_2021.html</a>

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Can I ask who plays FreeFire here, if u play send your UID(user ID) or name ...if u play good i can even join u to ny guild...

Posted by Prabhat Gupta 4 years, 3 months ago

CBSE > Class 09 > Mathematics

5 answers

Akshat Holland Minettee 4 years, 3 months ago

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Bhakti Jugani 4 years, 3 months ago

This app is for educational purpose

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Ranjan Mishra 4 years, 3 months ago

Dear prabhuji appko yai pata hoga ki Yai educational app hai koi whatsapp nahi

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Shadow King 4 years, 3 months ago

innocent0046j is my uid

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Shadow King 4 years, 3 months ago

Yss I play

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2*1

Posted by Dhinesh .A 4 years, 3 months ago

CBSE > Class 09 > Mathematics

2 answers

Prabhat Gupta 4 years, 3 months ago

2 ??✌️

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Dhinesh .A 4 years, 3 months ago

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ANSWER

To verify that the sum of any two sides of a triangles is always greater than the third side

Posted by Pushplata Kol 4 years, 3 months ago

CBSE > Class 09 > Mathematics

1 answers

Gaurav Seth 4 years, 3 months ago

Given ΔABC, extend BA to D such that AD = AC.
Now in ΔDBC
∠ADC = ∠ACD [Angles opposite to equal sides are equal]
Hence ∠BCD > ∠ BDC
That is BD > BC [The side opposite to the larger (greater) angle is longer]
Þ AB + AD > BC
∴ AB + AC > BC [Since AD = AC)
Thus sum of two sides of a triangle is always greater than third side.