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How can I delete my account from CBSE guide app!

Posted by Tapan Pandey 7 years, 8 months ago

CBSE > Class 10 > Mathematics

1 answers

Aman Kumar 7 years, 8 months ago

Same, I also want to do it

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Aftab said his daughter seven year ago i was seven time as old as you were also three time from now I shall be three time as old as you will be .Represent this situation algebraically and graphically

Posted by Satyam Singh 6 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Sia ? 6 years, 6 months ago

Let the present ages of Aftab and his daughter be x year and y year respectively. Then the algebraic representation is
Given by the following equations:
x - 7 = 7(y - 7)
{tex}\Rightarrow{/tex} x - 7y + 42 = 0 ...(1)
And x + 3 = 3(y + 3)
{tex}\Rightarrow{/tex} x - 3y - 6 = 0 ...(2)
To, represent this equation graphically, well find two solution for each equation, These solution are given below;
For Equation (1) x - 7y + 42 = 0
{tex}\Rightarrow{/tex} 7y = x + 42
{tex}\Rightarrow y = \frac{{x + 42}}{7}{/tex}
Table 1 of solutions

x	0	7
y	6	7

For Equation (2) x - 3y - 6 = 0
{tex}\Rightarrow{/tex} 3y = x - 6
{tex}\Rightarrow y = \frac{{x - 6}}{3}{/tex}
Table 2 of solutions

x	0	6
y	-2	0

We plot the A(0, 6) and B(7, 7)
Corresponding to the solutions in table 1 on a graph paper to get the line AB representing the equation (1) and the points C(0, -2) and D(6, 0) corresponding to the solutions in table 2 on the same graph paper to get the line CD representing the equation (2), as shown in the figure

We observe in figure that the two lines representing the two equations are intersecting at the point P(42, 12).

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Show that cube of any positive integers is a form 4m+ 1, 4m+8 for some integers m

Posted by Reshop Prajapati 7 years, 8 months ago

CBSE > Class 10 > Mathematics

2 answers

Ritik Singh 7 years, 8 months ago

Bolo na

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Ritik Singh 7 years, 8 months ago

Bauth bara h thora solve kar danga to bana sacta ho

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Find the LCM of the numbers whose HCF is 4,and numbers are 4052 & 12576.

Posted by Kishor Poul 7 years, 8 months ago

CBSE > Class 10 > Mathematics

3 answers

Tapan Pandey 7 years, 8 months ago

Is it... then what is our mistake....we are unable to get the leak paper

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Tapan Pandey 7 years, 8 months ago

Raghav...is it true that the exam is cancelled

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Mr Lovely 7 years, 8 months ago

LCM × HCF = First number × second number x × 4 = 4052 × 11576 Now u can solve next.......

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Why a √is irrational.

Posted by Prakash Kumar 7 years, 8 months ago

CBSE > Class 10 > Mathematics

3 answers

Tapan Pandey 7 years, 8 months ago

Hii

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Chitra Verma 7 years, 8 months ago

Not all √ are irrational

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Sanjana Yadav 7 years, 8 months ago

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2,-3÷2 are two zeros form a quadratic polynomial

Posted by Sparsh Sharma 7 years, 8 months ago

CBSE > Class 10 > Mathematics

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What is Rheostat

Posted by Kumkum Jha 7 years, 8 months ago

CBSE > Class 10 > Mathematics

1 answers

Sanjana D 7 years, 8 months ago

rheostat is a device with a variable resistance. basically a device where the resistance can be changed and is not fixed like a resistor.

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Check whether 6^n can end with the digit 0 for any natural number n

Posted by Udit Shukla 7 years, 8 months ago

CBSE > Class 10 > Mathematics

1 answers

Anupam Garg 7 years, 8 months ago

No,6^n can not end with zero.If 6^n is end with zero than in its prime factorisation is 2 and 5. But we know that it's prime factorisation is (2×3)^n and it is unique by the fundamental theoram of Euclid division algorithm. So 6^n is not end with zero for any natural number n.

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When will the boards of 10 are going to conduct

Posted by Akansh Patel 7 years, 8 months ago

CBSE > Class 10 > Mathematics