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Arzoo
Subject: Maths
, asked on 11/4/18
describe the following in roster form a={x: x is a positive factor of (2^n1)(2?1) where 2^n1 is prime}
Answer
1
Devansh The Rock Star
Subject: Maths
, asked on 8/4/18
In Quadratic formula which part is responsible for generating two different zeroes?
Answer
1
Devansh The Rock Star
Subject: Maths
, asked on 8/4/18
Find the roots of the quadratic equation using compleating the square method: 6x^27x10=0
Answer
1
Son Ser
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.
Answer
3
Harsh Singh
Subject: Maths
, asked on 30/3/18
Solve this :
${\left(ab\right)}^{3}=?$
Answer
4
Raghav Singh
Subject: Maths
, asked on 29/3/18
Solution:
$\Rightarrow $
$\frac{24}{18x}$

$\frac{24}{18+x}=1$
$\Rightarrow $
$\frac{24\left(2x\right)}{(18x)(18+x)}=1$
$\Rightarrow $
48x = 324  x
^{2}
$\Rightarrow $
x
^{2}
+ 48x  324 = 0
$\Rightarrow $
x
^{2}
+ 54x  6x  324 = 0
$\Rightarrow $
x(x + 54)  6(x + 54) = 0
$\Rightarrow $
(x + 54) ( x  6) = 0
$\Rightarrow $
x =  54 or x = 6
∴ x = 6 (Speed of the stream cannot be negative)
Thus, the speed of stream is 6 km/hr.
Answer
1
Harsh
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.
Answer
3
Sahil Haque
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.
Answer
1
Sameer Ahmed
Subject: Maths
, asked on 27/3/18
Question 15
Answer
2
Taniqsha
Subject: Maths
, asked on 27/3/18
1/a + 1/b + 1/x= 1/(a+b+c)
Answer
1
Champ Jee
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 :

$4{x}^{2}\sqrt{3x}5=0$
Answer
3
Champ Jee
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.
Answer
1
Amit Rana
Subject: Maths
, asked on 27/3/18
Zz answer question no 1
1.
Find the roots of
a
^{2}
x
^{2}
+ (a
^{2}
 b
^{2}
)x  b
^{2}
= O
2. How many tangents can a circle have ?
Answer
2
Payal Arora
Subject: Maths
, asked on 27/3/18
Q.3. Find the value
$\sqrt{6+\sqrt{6+\sqrt{6+......}}}$
Answer
3
Bhawana
Subject: Maths
, asked on 27/3/18
Solve the equation by the method of
completing the square
: x
^{2}
+12x45=0
Answer
1
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What are you looking for?
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.
${\left(ab\right)}^{3}=?$
$\Rightarrow $$\frac{24}{18x}$  $\frac{24}{18+x}=1$
$\Rightarrow $$\frac{24\left(2x\right)}{(18x)(18+x)}=1$
$\Rightarrow $ 48x = 324  x^{2}
$\Rightarrow $ x^{2} + 48x  324 = 0
$\Rightarrow $ x^{2} + 54x  6x  324 = 0
$\Rightarrow $ x(x + 54)  6(x + 54) = 0
$\Rightarrow $ (x + 54) ( x  6) = 0
$\Rightarrow $ x =  54 or x = 6
∴ x = 6 (Speed of the stream cannot be negative)
Thus, the speed of stream is 6 km/hr.
Answer by expert shows( root 3/8)2. But how? I dint understand? Please explain. Tomorrow's exam!:
Q. Given, quadratic equation is :
$4{x}^{2}\sqrt{3x}5=0$
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.
1. Find the roots of
a^{2}x^{2} + (a^{2}  b^{2})x  b^{2} = O
2. How many tangents can a circle have ?