CBSE > Class 10 > Mathematics | CBSE Board | Homework Help

Ask questions which are clear, concise and easy to understand.

Ask Question

What is the terminating and non tetminating repeating

Posted by Aman Kumar 5 years, 5 months ago

2 answers

Arun Patel 5 years, 5 months ago

number having countable number after decimal are terminating eg, 1.2, 1.323332, 2.675 ect and numbers having uncountable number after decimal are non terminating eg 12.2327648...., 2.984875....., 3.666666.....

0Thank You

Vaibhav (Silent Love)?? Avi 270505??? 5 years, 5 months ago

non-terminating, non-repeating decimal is a decimal number that continues endlessly, with no group of digits repeating endlessly. Decimals of this type cannot be represented as fractions, and as a result are irrational numbers. ... Non-terminating, non-repeating decimals can be easily created by using a pattern.

0Thank You

ANSWER

2_43_+7^+*÷(8654#-/×7-+×86#@₹-{×543

Posted by Rituraj Chauhan 5 years, 5 months ago

CBSE > Class 10 > Mathematics

1 answers

Soumyajit Kundu 5 years, 5 months ago

0Thank You

ANSWER

Chapter no ---- 14 Statistics Consider the following distribution of daily wages of 50 workers of a factory . Daily wages 500-520 520-540 540-560 560-580 580-600 No of 12 14 8 6 10 Children Find the mean daily wages of the workers of the following by using an appropriate method

Posted by Sushil Shukla 5 years, 5 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Find a realtion between x and y such that the point x and y is equidistant from the point ,x,y

Posted by Sunil Mishra 5 years, 5 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Does question in civics comes from plus(+) boxes?

Posted by Suryansh Singh 5 years, 5 months ago

CBSE > Class 10 > Mathematics

5 answers

Lucifer?? Morningstar?? 5 years, 5 months ago

Yes

1Thank You

Anushka ?? 5 years, 5 months ago

Ek baar read jaroor kar lena

2Thank You

Study Lover ?‍? ?‍? 5 years, 5 months ago

No,the question will not be ask from plus(+) boxes.It is clearly written in pg no (7).

1Thank You

Anushka ?? 5 years, 5 months ago

Sanket are u here

2Thank You

Anushka ?? 5 years, 5 months ago

Kahi se bhi aa sakte h

2Thank You

ANSWER

If ax + by = a2 – b2 and bx + ay = 0, find the value of (x + y).

Posted by ? Pranali.A.P ? 5 years, 5 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

How many solutions does the pair of equations y = 0 and y = -5 have?

Posted by ? Pranali.A.P ? 5 years, 5 months ago

CBSE > Class 10 > Mathematics

5 answers

Ash Greninja 5 years, 5 months ago

No solutions

0Thank You

? Pranali.A.P ? 5 years, 5 months ago

Ok ,no problem

0Thank You

Anushka ?? 5 years, 5 months ago

U are right meri maths thodi weak h mujhe samajh nahi aata

0Thank You

? Pranali.A.P ? 5 years, 5 months ago

No solution

1Thank You

Anushka ?? 5 years, 5 months ago

I think infinite many

0Thank You

ANSWER

Maths chapter 4 exercise 4.1 question 2

Posted by Jasvir Singh 5 years, 5 months ago

CBSE > Class 10 > Mathematics

1 answers

Lucifer?? Morningstar?? 5 years, 5 months ago

Available in this app

0Thank You

ANSWER

Two pipe running together in 3. 1/13 min if one pipe takes 3 min more than the other . To fill the tank, then find the time taken by each pipe to seprate the tank .

Posted by ? Pranali.A.P ? 5 years, 5 months ago

CBSE > Class 10 > Mathematics

4 answers

Lucifer?? Morningstar?? 5 years, 5 months ago

Let faster pipe takes x min to fill the cistern. To fill the cistern slower pipe take (x+3) min. In one minute the faster pipe filled the cistern= 1/x In 3 1/13= 40/13 min the faster pipe filled the cistern= 40/13 × (1/x) = 40/13x In 3 1/13= 40/13 min the slower pipe filled the cistern= 40/13 × (1/x+3) = 40/13(x+3). ATQ 40/13x + 40/13(x+3) = 1 40/13 [ 1/x + 1/(x+3)] = 1 40 [ (x +3+x) / x(x+3)] =13 40(2x +3) =13 x(x+3)] 80x + 120 = 13x² +39x 13x² +39x -80x -120= 0 13x² - 41x -120= 0 13x² - 65x +24x -120= 0 13x(x -5) + 24(x -5)= 0 (13x +24)(x -5)= 0 (13x +24)= 0 or (x -5)= 0 x =- 24/13 or x = 5 Time cannot be in negative.so, 5 min

0Thank You

? Pranali.A.P ? 5 years, 5 months ago

3 , 1/13 hai

0Thank You

? Pranali.A.P ? 5 years, 5 months ago

Vo 3 1 upon 2 hai

0Thank You

Lucifer?? Morningstar?? 5 years, 5 months ago

Together in ke baad samjh nhi arha

0Thank You

ANSWER

1x2 + kx + 64 = 0 , find k and x

Posted by ? Pranali.A.P ? 5 years, 5 months ago

CBSE > Class 10 > Mathematics

4 answers

Lucifer?? Morningstar?? 5 years, 5 months ago

K=16

1Thank You

? Pranali.A.P ? 5 years, 5 months ago

Vo X hai

0Thank You

? Pranali.A.P ? 5 years, 5 months ago

Sorry its my mistake

0Thank You

Anushka ?? 5 years, 5 months ago

1 x 2 h kya ya fir 1into 2 h

1Thank You

ANSWER

2x+6y=12 and 3x-15y=30 solve it with any three methods

Posted by Anushka ?? 5 years, 5 months ago

CBSE > Class 10 > Mathematics

5 answers

Anushka ?? 5 years, 5 months ago

Thik h gussa kyu ho aata h mujhe

1Thank You

Lucifer?? Morningstar?? 5 years, 5 months ago

Khud se nikalo itna v nhi kr skti

1Thank You

Anushka ?? 5 years, 5 months ago

And x kya mila

0Thank You

Anushka ?? 5 years, 5 months ago

Thanks and hiiiii

1Thank You

Lucifer?? Morningstar?? 5 years, 5 months ago

Multiply eq (1) by 3 and eq (2) by 2...... 6x+18y=36...(3). 6x-30y=60...(4) subtract eq (3) from eq(4) .... -48y=24 => y=-1/2

1Thank You

ANSWER

The first term of two APS are equal and the ratios of the common difference is 1 is to 2 if the 7th term of the AP and 21 term of second ap are 23 and 125 respectively find two APS

Posted by Kiran Jadhav 5 years, 5 months ago

CBSE > Class 10 > Mathematics

1 answers

Gaurav Seth 5 years, 5 months ago

Given The first term of two aps are equal and the ratios of their common difference is 1:2.if the 7th term of first ap and 21th term of second ap are 23 and 125 respectively. find two aps.

According to question we have

So a7 = 23

Now a + 6d = 23

Or a = 23 – 6d------------------1

Also a21 = 125

Now a + 20b = 125------------2

Or 23 – 6d + 20 b = 125 (from 1)

20 b – 6d = 102

10 b – 3d = 51

Now according to question d/b = 1/2

Now d = 1x and b = 2x (for some positive value x)

Now 10 b – 3d = 51

10(2x) – 3 (x) = 51

17 x = 51

Or x = 3

Therefore d = 3, b = 6

Put d = 3 in equation 1 we get

So a + 6(3) = 23

Or a = 23 – 18

Or a = 5

Therefore first A.P is 5,8,11-------and

Second A.P is 5,11,17-------

0Thank You

ANSWER

what is formula of quadratic polynomials

Posted by Vishvajit Yadav 5 years, 5 months ago

CBSE > Class 10 > Mathematics

2 answers

Sandli Thakur✍?✍?(Helping Hand)? 5 years, 5 months ago

=k(x²+(alpha+beta)x+alpha beta)

1Thank You

Lucifer?? Morningstar?? 5 years, 5 months ago

D=b²-4ac and x=-b±√D/2a

2Thank You

ANSWER

obtain all the zeroes of 2x^4-7x^3-13x^2+63x-45 if two of its zeroes are 1 and 3

Posted by Amrit Mago 5 years, 5 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

The decimal expansion of rational number 14567/1250 terminate after

Posted by Manvir Singh 5 years, 5 months ago

CBSE > Class 10 > Mathematics

1 answers

Namrata Jindal 5 years, 5 months ago

4 places of decimal. Because 1250 = 2*5^4 So degree of 5 is greater i.e. 4

1Thank You

ANSWER

Anita sunaina and aghav start preparing cards for all the persons of an old age home In Order to complete one card they take 16 10 and 20 minutes respectively if all of them started together after how much time they will make a new card what mathematical concept is used here. What value of children is shown here

Posted by Avantee Bombarde 5 years, 5 months ago

CBSE > Class 10 > Mathematics

1 answers

Arun Patel 5 years, 5 months ago

R1 = 1/16, R2 = 1/10 and R3 = 1/20 so when tey work together R = R1 +R2 + R3 R = 1/16 + 1/10 + 1/20 =( 20 + 32 + 16)/320 = 68/320 so the time taken to finesh the work is 320/68 = 4. 705 minutes approx here you are using rate of work topic

0Thank You

ANSWER

A man saved Rs 16500 in 10 years. In each year after the first year he saved Rs 100 more than he did in the preceding year. How much did he save in the first year?

Posted by Lucifer?? Morningstar?? 5 years, 5 months ago

CBSE > Class 10 > Mathematics

2 answers

Arun Patel 5 years, 5 months ago

sum of AP = n{ 2a + (n-1)d}/2 = 10{2a + (10 - 1)100}/2 so 16500 = 5 {2a + 900} 3300 = 2a + 900 3300 -900 =2a 2400 =2a 2400/2 =a a = 1200 so he saved Rs 1200 in the first year 1650 - 900 = 2a 7

0Thank You

? Pranali.A.P ? 5 years, 5 months ago

Second installment= a + 100 Third installment = a+100+100 The sum of his saving every years Sn=n/2[2a+(n-1)d] a=first term for the given A.P d=common difference of the given A.P n= number of terms n=10 S10 =10/2[2(a)+(9)(100)] 16500=5[2a+(9)(100)] 16500 =10a=4500 16500-4500=10a 12000=10a a=12000/10 Solving for a 10a=12000 a=12000/10 a=1200

0Thank You

ANSWER

●Two APS have the same common difference the difference between there 100th term is 100 ,what is the difference between their 1000th terms?

Posted by Sumit Gupta 5 years, 5 months ago

CBSE > Class 10 > Mathematics

5 answers

Lucifer?? Morningstar?? 5 years, 5 months ago

Give my answer

0Thank You

Lucifer?? Morningstar?? 5 years, 5 months ago

a1000–A1000 = a+999d–A-999d = a-A=100 using eq(1)

0Thank You

? Pranali.A.P ? 5 years, 5 months ago

Two APs have the same common difference. The difference between their 100th terms is 100, what is the difference between their 1000th terms? BE/BTech at Thapar Institute of Engineering & Technology. 100 Solution Let the difference be d And the first term of AP1 be a1 And AP 2 be a2 100th term of AP1 is a1+99d……(.1) 100th term of AP2 is a2+99d……(2) As per ques eq1 - eq2=100 i.e a1-a2=100 Now 1000th term of AP1 is a1+999d……(.3) 1000th term of AP2 is a2+999d……(4) Eq3-eq4=100 i.e a1-a2=100 So answer remains constant=100

1Thank You

? Pranali.A.P ? 5 years, 5 months ago

Answer is 100

0Thank You

Lucifer?? Morningstar?? 5 years, 5 months ago

Let the first term be a and A of two APs respectively. a100–A100=100=> a+99d–A–99d=100 => a–A=100...(1)

0Thank You

ANSWER

A man repays a loan of Rs 3250 by paying Rs 20 in the first month and then increasing it by Rs 15 every month. How long will it take him to clear the loan?

Posted by Lucifer?? Morningstar?? 5 years, 5 months ago

CBSE > Class 10 > Mathematics

1 answers

? Pranali.A.P ? 5 years, 5 months ago

Here, a = 20, d = 15 (As payment increases by Rs. 15) and S(n) = 3 We know that, S(n) = n/2[2a + (n - 1)d] Putting all the values, we get ⇒ 3250 = n/2[2 × 20 + (n - 1) (15)] ⇒ 3250 × 2 = n[40 + 15n - 15] ⇒ 6500 = n[25 + 15n] ⇒ 1300 = n[5 + 3n] ⇒ 3n² + 5n - 1300 = 0 ⇒ 3n² + 65n - 60n - 1300 = 0 ⇒ n(3n + 65) - 20(3n + 65) = 0 ⇒ (n - 20) (3n + 65) = 0 ⇒ n = 20, - 65/3 (As n can't be negative) ⇒ n = 20 Hence, men will take 20 months to clear the loans. Read more on Brainly.in - https://brainly.in/question/1598066#readmore

1Thank You

ANSWER

If -4 is the zero of polynomial x^2-2x-7p^3 ,find the value of p

Posted by Anas Shaikh 5 years, 5 months ago

CBSE > Class 10 > Mathematics

1 answers

Lucifer?? Morningstar?? 5 years, 5 months ago

16+8=7p³ => p=³√24/³√7

0Thank You

ANSWER

How can we find probability

Posted by Vaibhav Vaid 5 years, 5 months ago

CBSE > Class 10 > Mathematics

1 answers

? Pranali.A.P ? 5 years, 5 months ago

To calculate probability, you will need to divide the number of events, or what you want to calculate, by the number of possible outcomes, or how many total options there are.

0Thank You

ANSWER

HCF of 657 and 495 describe

Posted by Maya Dadaliya 5 years, 5 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

1,-1,3,5,0,-4,-3 find the other numbers

Posted by Vrindha Rajesh 5 years, 5 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Qhat no should be added to 2105 to make it exactly divisible by 33??❓

Posted by Lucifer?? Morningstar?? 5 years, 5 months ago

CBSE > Class 10 > Mathematics

1 answers

Yogesh Lakhwani 5 years, 5 months ago

Just divide the number 2105 by 33.

The remainder left after division is the answer.

1Thank You

ANSWER

35688953

Posted by Dolly . 5 years, 5 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Find the zeroes of the following quadratic polynomials and verify the relationship between the zeroes and the coefficient A. x² - 2x - 8

Posted by Sathiya Sathiya 5 years, 5 months ago

CBSE > Class 10 > Mathematics

1 answers

Gaurav Seth 5 years, 5 months ago

actorize the equation

Compare the equation with ax² + bx + c = 0
We get
a = 1 ,b=-2 c= -8
To factorize the value we have to find two value which
sum is equal to b =-2
and product is a x c = 1 x -8 = -8

2 and -4 are such number which

sum is 2-4 = - 2
product is 2*-4 = - 8

So we can write middle term -2 x = 2 x – 4 x
We get
x²+2x-4x-8=0
x (x + 2)-4(x + 2) = 0
(x+2) (x-4)          = 0
First zero
x + 2                  = 0
x                        = -2
Second zero
x-4                   = 0
x                      = 4
sum of zero                -2 + 4 = 2
product of zero           2 x -4     = -8

For a equation ax² + bx + c = 0 , if zeroare α and β ,

Plug the values of a , b and c we get
Sum of zeros -b/a = -(-2/1) = 2
Product of zeros c/a =-8/1 = -8

0Thank You

ANSWER

How root two is irrational?

Posted by Naveen Mk 5 years, 5 months ago

CBSE > Class 10 > Mathematics

2 answers

Shubhang Shrivastav 5 years, 5 months ago

Every root number is irrrational.

0Thank You

Meghna Thapar 5 years, 5 months ago

The square root of 2 is "irrational" (cannot be written as a fraction) ... because if it could be written as a fraction then we would have the absurd case that the fraction would have even numbers at both top and bottom and so could always be simplified.

1Thank You

ANSWER

Who root two is irrational?

Posted by Naveen Mk 5 years, 5 months ago

CBSE > Class 10 > Mathematics