Subject: Maths, asked on 11/4/18

## describe the following in roster form a={x: x is a positive factor of (2^n-1)(2?-1) where 2^n-1 is prime}

Subject: Maths, asked on 8/4/18

## In Quadratic formula which part is responsible for generating two different zeroes?

Subject: Maths, asked on 8/4/18

## Find the roots of the quadratic equation using compleating the square method: 6x^2-7x-10=0

Subject: Maths, asked on 1/4/18

## Solve this : 9. At present Asha's age (in years) is 2 more than the square of her daughter Nisha's age. When Nisha grows to her mother's present age, Asha's age would be one year less than 10 times the present age of Nisha. Find the present ages of both Asha and Nisha.

Subject: Maths, asked on 30/3/18

## Solve this :

Subject: Maths, asked on 29/3/18

## Solution: $⇒$ -  $⇒$ $⇒$ 48x = 324 - x2 $⇒$ x2 + 48x - 324 = 0 $⇒$ x2 + 54x - 6x - 324 = 0 $⇒$ x(x + 54) - 6(x + 54) = 0 $⇒$ (x + 54) ( x - 6) = 0 $⇒$ x = - 54 or x = 6    ∴ x = 6 (Speed of the stream cannot be negative)     ​Thus, the speed of stream is 6 km/hr.

Subject: Maths, asked on 28/3/18

## A planet left 30 minutes late than its scheduled time and in order to reach the destination 1500 km away in time, it had to increase its speed by 100 km/h from the usual speed. Find its usual speed.

Subject: Maths, asked on 27/3/18

## a plane left 30 minutes later than the scheduled time and inorder to reach the desination, 1500km away in time. It has to increase the speed by 100km/h from the usual speed. find its usual speed.

Subject: Maths, asked on 27/3/18

## Question 15

Subject: Maths, asked on 27/3/18

## 1/a + 1/b + 1/x= 1/(a+b+c)

Subject: Maths, asked on 27/3/18

## Which constant should be added or subtracted to solve the quadratic equation 4x^2 - 3x -5 by method of completing the square?  Answer by expert shows( root 3/8)2. But how? I dint understand? Please explain. Tomorrow's exam!: Q. Given, quadratic equation is : -

Subject: Maths, asked on 27/3/18

## Question in pic!!  My answer is coming 2/9. Is that right?: Q. Which constant can be added subtracted from the equations $9{x}^{2}-2\sqrt{2x}+8=0$ to solve it by method of completing the square.

Subject: Maths, asked on 27/3/18

## Zz answer question no 1 1.  Find the roots of      a2x2 + (a2 - b2)x - b2 = O  2. How many tangents can a circle have ?   ​

Subject: Maths, asked on 27/3/18

## Q.3. Find the value $\sqrt{6+\sqrt{6+\sqrt{6+......}}}$

Subject: Maths, asked on 27/3/18

## Solve the equation by the method of completing the square : x2 +12x-45=0

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