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Ask QuestionPosted by Jayaseelan T 5 years, 4 months ago
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Posted by Jagriti Kesarwani 5 years, 4 months ago
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Gaurav Seth 5 years, 4 months ago
2 x - y = 1 and x + 2 y = 13
The two lines intersect at x = 3 y = 5
see diagram for the solution and shaded area (Gray) ABC is formed the lines and the Y Axis.
The shaded area (BLUE) is formed by the lines and X-Axis.
Posted by Dinkar Kumar 5 years, 4 months ago
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Gaurav Seth 5 years, 4 months ago
The least number divisible by all the numbers from 1 to 10 will be the LCM of these numbers.
We have,
1 = 1
2 = 2 × 1
3 = 3 × 1
4 = 2 × 2
5 = 5 × 1
6 = 2 × 3
7 = 7 × 1
8 = 2 × 2 × 2
9 = 3 × 3
10 = 2 × 5
So, LCM of these numbers = 1 × 2 × 2 × 2 × 3 × 3 × 5 × 7 = 2520
Hence, least number divisible by all the numbers from 1 to 10 is 2520
Posted by Waste Material Product Product 5 years, 4 months ago
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Posted by Harsh Bhatnagar 5 years, 4 months ago
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Posted by Ash Greninja 5 years, 4 months ago
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Gaurav Seth 5 years, 4 months ago
2x + 3y = 7
2ax + (a + b) y = 28
If two equations has infinite solutions, then,
a1 / a2 = b1 / b2 = c1 /c2
2 / 2a = 3 / a+b = -7 / -28
1/a = 3/a+b = 1/4
Now,
1/a = 1/4
a = 4
And
3/a+b = 1/4
12 = 4 + b
12 - 4 = b
b = 8
Thus,
a = 4
b = 8
So, b = 2a
Hence, option (b) is correct.
Posted by Ajeet Dhakad 5 years, 4 months ago
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Posted by Thota Dushyanth 5 years, 4 months ago
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Yogita Ingle 5 years, 4 months ago
Diameter of semicircular protractor = 14 cm
Radius = 7 cm
Perimeter = 2πr/2 + 2r = πr + 2r
= π (7) + 2 (7)
= 22x 7/7 + 14
= 22 + 14
= 36 cm
Posted by Bobby Panday 5 years, 4 months ago
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Backia Kalai 5 years, 4 months ago
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Vaishnavi Gupta 5 years, 4 months ago
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Posted by Ashutosh Sujam 5 years, 4 months ago
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Posted by Ekta Bamniya 5 years, 4 months ago
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Yogita Ingle 5 years, 4 months ago
Here ABC is an equilateral triangle with each side as 'a'.
therefore AD Is the altitude which bisects the base BC into 2 equal halves.
therefore in triangle ABD
AD^2+BD^2=AB^2 ( Pythagoras theorem)
=>AD=√a^2-a^2/4
=>AD=√3a/2.
therefore altitude of the triangle is √3a/2.
Posted by G Y Harshavardhan Reddy 261 5 years, 4 months ago
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Posted by Sanika Walimbe 5 years, 4 months ago
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Sanika Walimbe 5 years, 4 months ago
Posted by Shiwanshi Dixit 5 years, 4 months ago
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Yogita Ingle 5 years, 4 months ago
6. A cottage industry produces a certain number of pottery articles in a day. It was observed on a particular day that cost of production of each article (in rupees) was 3 more than twice the number of articles produced on that day. If, the total cost of production on that day was Rs. 90, find the number of articles produced and the cost of each article.
Ans. Let cost of production of each article be Rs x
We are given total cost of production on that particular day = Rs 90
Therefore, total number of articles produced that day = 90/x
According to the given conditions,
⇒
⇒
⇒
⇒
⇒
⇒x (x − 15) + 12 (x − 15) = 0
⇒(x − 15) (x + 12) = 0⇒x = 15, −12
Cost cannot be in negative, therefore, we discard x = −12
Therefore, x = Rs 15 which is the cost of production of each article.
Number of articles produced on that particular day = 
= 6
Posted by Harish Choudhary 5 years, 4 months ago
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Namapratim Nath 5 years, 4 months ago
Posted by Shubham Kamble 5 years, 4 months ago
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Chandresh Tiwari 5 years, 4 months ago
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Bhumi Goyal 5 years, 4 months ago
? Pranali.A.P ? 5 years, 4 months ago
Posted by Rashi Rawat 5 years, 4 months ago
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Gaurav Seth 5 years, 4 months ago
Given f(x) = 5y^2 - 7y + 1.
Given that a,b be the zeros of the polynomial.
We know that sum of zeroes = -b/a
= > a + b = -(-7/5)
= > a + b = 7/5.
We know that product of zeroes = c/a
= > ab = 1/5
Now,
= > 1/a + 1/b = (a + b)/ab
= (7/5) * (5/1)
= 7/1
= 7.
Posted by Gunjan Choudhary 5 years, 4 months ago
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Pratima Gope 5 years, 4 months ago
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Paras Sekhon 5 years, 4 months ago
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Helper . 5 years, 4 months ago
Posted by Once Time Of Our In City 5 years, 4 months ago
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Yogita Ingle 5 years, 4 months ago
Given=> x + y = 14. .... equation 1
x - y = 4. ...... equation 2
Now, we will solve it by substitution method;
Let's take equation 1 =>
x + y = 14
x = 14 - y
Put the value of x in equation 2=>
x - y = 4
=> 14 - y - y = 4
=> 2y = 14 - 4
=> y = 10/2
=> y = 5
Now, put the value of y in equation 1 =>
x + y = 14
=> x + 5 = 14
=> x = 9
Therefore the value of x = 9 and y = 5
Posted by Rajkumar Thakur 5 years, 4 months ago
- 1 answers
Gaurav Seth 5 years, 4 months ago
We are supposed to find the square root of 5 up to 3 decimal places
Number = 5
Group the digits into pairs
For digits to the left of the decimal point, pair them from right to left.
For digits after decimal point, pair them from left to right
So, we have, 05
Refer the attached figure for the steps to be followed
So, √5 = 2.236
Hence the value of root 5 up to 3 decimal places is 2.236
Posted by Super Gamin Player 5 years, 4 months ago
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Shivam Tripathi 5 years, 4 months ago
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