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

Co-primes are 2 numbers which have only one as a common factor.
a = 2160
b = 847
By Euclid's lemma a=bq+r, 0≤r<b

2160 = 847 × 2 + 466
847 = 466 × 1 + 381
466 = 381 × 1 + 85
381 = 85 × 4 + 41
85 = 41 × 2 + 3
41 = 3 × 13 + 2
3 = 2 × 1 + 1
2 = 1 × 2 + 0

As 1 is the HCF of 847 and 2160.
∴ 847 and 2160 are co-primes as they have only 1 as their HCF.

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if two adjacent vertices of a parallelogram are 3,2 and -1,0 and their diagonals intersect at 2,-5 find the coordinates of the remaining vertices

Posted by Mishaji . 4 years, 7 months ago

CBSE > Class 10 > Mathematics

1 answers

Rashmi Sinha 4 years, 7 months ago

Let two other co-ordinates be (x, y) and (x', y') respectively using mid-point formula A(3, 2);B(-1, 0) ;C(x, y) D(x', y') and O(2, -5) By solving with using midpoint formula i.e x1+x2/2, y1+y2/2 We get x=1 y=-12 x' =5 and y'=-10

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(2567)²

Posted by Hamid Ahmad 4 years, 7 months ago

CBSE > Class 10 > Mathematics

4 answers

Rupesh Nehra 4 years, 7 months ago

6589489

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Akhya Sahay 4 years, 7 months ago

6589489

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Sujal Shahi 4 years, 7 months ago

(2567)² = 2567 x 2567 = 6,589,489

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Shrivatsa Shastri 4 years, 7 months ago

Ans is 6589489

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(26)

Posted by Yash Gupta 4 years, 7 months ago

CBSE > Class 10 > Mathematics

2 answers

Bipin Kumar 4 years, 7 months ago

Yes I have remember 26/11???

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Aakash Anand 4 years, 7 months ago

Kay bro (26) .?

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ANSWER

Solve (2√2)²

Posted by Clashing Rishabh 4 years, 7 months ago

CBSE > Class 10 > Mathematics

5 answers

Aman Tiwari 4 years, 7 months ago

4×2=8

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Bipin Kumar 4 years, 7 months ago

2×✓2×✓2=2×2=4

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Akhya Sahay 4 years, 7 months ago

(2√2)²=(2×2×√2×√2)=(4×2)=8

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Aakash Anand 4 years, 7 months ago

8 answer

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Aakash Anand 4 years, 7 months ago

4×2= 8

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ANSWER

Express 59/2raises4× 5raises3

Posted by Avni Sachan 4 years, 7 months ago

CBSE > Class 10 > Mathematics

5 answers

Avni Sachan 4 years, 7 months ago

Can you please get the answer of my question.

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Avni Sachan 4 years, 7 months ago

I am sorry. I didn't know about it.

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Palak ? 4 years, 7 months ago

Anyways, hi avni What do u think should boards be cancelled or not.... If any other person is reading this question comment down⤵⬇ About their choice regarding cancellation of boards... Thank you?

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Palak ? 4 years, 7 months ago

Me too ?sorry

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Aakash Anand 4 years, 7 months ago

Sorry I don't know ?

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Explain why 6 x 5 x 4 x 3 x 2 x1 +1 is a composite number.

Posted by Diya Vora 4 years, 7 months ago

CBSE > Class 10 > Mathematics

5 answers

Rupesh Nehra 4 years, 7 months ago

721

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Manoj Kanwar Rathore 4 years, 7 months ago

6×5×4×3×2+1=721 721=7×103 Hence it is a composite no .

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Aakash Anand 4 years, 7 months ago

Give equation have not more then two factor then it is not composite number ?

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Aakash Anand 4 years, 7 months ago

Composite number more then two factor ?

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Brahma Dubey 4 years, 7 months ago

1(6×5×4×3×2+1) Thus , it has more than one factor . Therefore, it is a composite number.

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ANSWER

Explain why 6 x 5 x 4 x 3 x 2 x1 +1 is not a composite number.

Posted by Diya Vora 4 years, 7 months ago

CBSE > Class 10 > Mathematics

1 answers

Aakash Anand 4 years, 7 months ago

#1(6×5×4×3×2) 1 × 720 ...... ........ Give equation have not more than two factor then it is not a composite number?

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ANSWER

12-9

Posted by Anju Abhay 4 years, 7 months ago

CBSE > Class 10 > Mathematics

5 answers

Bipin Kumar 4 years, 7 months ago

3.0000000000000000000000000000

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Akhya Sahay 4 years, 7 months ago

0Thank You

Clashing Rishabh 4 years, 7 months ago

0Thank You

Saurabh Singh 4 years, 7 months ago

0Thank You

Aakash Anand 4 years, 7 months ago

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Find the largest number which divides 438 and 606 leaving remainders 6 in each case.

Posted by Ashish Devnath 4 years, 7 months ago

CBSE > Class 10 > Mathematics

3 answers

Aryush Nagar 4 years, 7 months ago

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Mahee Kubavat 4 years, 7 months ago

0Thank You

Ajay Topno 4 years, 7 months ago

0Thank You

ANSWER

What are golden quadrilateral super highways

Posted by Shruti S 4 years, 7 months ago

CBSE > Class 10 > Mathematics

2 answers

Bipin Kumar 4 years, 7 months ago

The answer is Golden quadrilateral superhighway is a one of the major highway in India. It links four mega cities of India which are Delhi-Kolkata-Chennai-Mumbai. It has installed because of reducing time between mega cities. And the it has 2 corridors which has from Gujarat to Assam. And Kashmir to kanyakumari. That's it

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Brahma Dubey 4 years, 7 months ago

GQSH are maintained by NHAI(National highway authority of India).It is linked by 4 major states such as Chennai-Mumbai-Delhi- Kolkata. It reduces traffic.

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ANSWER

40-45 45-50 50-55 55-60 60-70 frequency 4 6 16 20 30 24

Posted by Ds Dharmin Sagar 4 years, 7 months ago

CBSE > Class 10 > Mathematics

1 answers

Sia ? 4 years, 7 months ago

Please ask question with complete information.

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ANSWER

Find the ratio between the L.C.M and H.C.F of 5,15,20

Posted by Sreetika Mondal 4 years, 7 months ago

CBSE > Class 10 > Mathematics

2 answers

Incredible Foxtrot 4 years, 7 months ago

LCM ( 5,15,20) = 60 and HCF (5,15, 20)= 5 . Therefore ratio is equal to 60/5 that is 12:1

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Aakash Anand 4 years, 7 months ago

❤5= 5×1 ❤15=3×5×1 ❤20=2×2×5×1 ?HCF = 5 ? LCM=2×2×3×5= 60 ?❤ Ratio = LCM/HCF = 60/5 ?12/1 ..... Ratio =12:1 .answer ........... Aakash Anand ?❤

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ANSWER

For what value of an unnatural number 24th is divisible by 8

Posted by Swikruti Mohanty 4 years, 7 months ago

CBSE > Class 10 > Mathematics

1 answers

Prince Saini 4 years, 7 months ago

Yeah

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ANSWER

Find the area of the sector of a circle with radius 6cm if angle of sector is 60 degree

Posted by Dhanshree Mane 4 years, 7 months ago

CBSE > Class 10 > Mathematics

2 answers

Bipin Kumar 4 years, 7 months ago

πr² thetha /360°= 22/7×6×6×60°/360°= 22/7×6=132/7=18.8 cm².

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Incredible Foxtrot 4 years, 7 months ago

Put the value in the formulas πr^2× theta upon 360 we get 132/7 which is 18.857 cm square

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ANSWER

Sides of triangle are given below. Determine whether it is right triangle or not 13,12,5

Posted by Dhanshree Mane 4 years, 7 months ago

CBSE > Class 10 > Mathematics

2 answers

Incredible Foxtrot 4 years, 7 months ago

By converse of Pythagoras theorem we get 12 square plus 5 square = 13 square . Therefore it is a right angled traingle .

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उपेंद्र वर्मा 4 years, 7 months ago

Yes the gives sides can form right angle

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ANSWER

A tangents PQ at a point P of a circle with center O .are inclieded to each other angleb of 80 degere . Then find angle POA

Posted by Dhanshree Mane 4 years, 7 months ago

CBSE > Class 10 > Mathematics

2 answers

Abishai Nathan 4 years, 7 months ago

Ans=?POA=50*

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Aakash Anand 4 years, 7 months ago

❤radius is perpendicular on tangent at the point of contact # OP perpendicular PQ Their for Angle OPQ = 90* # Give Angle PQO= 80* ... ?In ?triangle OPQ # ?p + ?Q + ?O = 180* {Angle sum property } # 90* + 80* + ?O = 180* # 170 + ?0 = 180* ❤Angle O = 10* ... Answer ,.............. Aakash Anand ?

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Sides of a two similar triangle are the ratio 4:9 . Find the areas of the triangle in the ratio

Posted by Dhanshree Mane 4 years, 7 months ago

CBSE > Class 10 > Mathematics

3 answers

Abishai Nathan 4 years, 7 months ago

16/81

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Unknown . 4 years, 7 months ago

Given: the ratio of sides is 4:9 Solution: Let there are two triangles ABC and PQR similar to each other Where AB/PQ=4/9 According to theorem 6.6 which states that the ratio of areas of similar triangles is equal to the square of the ratio of their sides Hence, ar(ABC)/ar(PQR)=(AB/PQ)² =(4/9)² =(16/81) Therefore, the ratio of the areas of given triangles is 16:81 Hope this helps u!!! One more thing this(theorem 6.6) is deleted from the syllabus od 2020-2021 as 30percent syllabus is reduced ???

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उपेंद्र वर्मा 4 years, 7 months ago

16/81

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ANSWER

What is an , l, n and nth term

Posted by Swikruti Mohanty 4 years, 7 months ago

CBSE > Class 10 > Mathematics

2 answers

Swikruti Mohanty 4 years, 7 months ago

Okay thank you

0Thank You

Incredible Foxtrot 4 years, 7 months ago

Here l is the last term of the ap. And n is term of any no. In ap. And nth term is usually denotes to the whole ap sequence.

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ANSWER

ABC and BDE are two equilateral such that D is the mid point of BC . Find the ratio of these areas triangle ABC and BDE

Posted by Dhanshree Mane 4 years, 7 months ago

CBSE > Class 10 > Mathematics

2 answers

Abishai Nathan 4 years, 7 months ago

4:1

0Thank You

Adithya Dev A 4 years, 7 months ago

ar (ΔABC)/ar (ΔBDE) = 4:1.

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ANSWER

Find the values of k for given quadric equation, so that have equal roots : 2x^2+is+3 =0

Posted by Dhanshree Mane 4 years, 7 months ago

CBSE > Class 10 > Mathematics

1 answers

Sia ? 4 years, 7 months ago

Please ask question with complete information.

0Thank You

ANSWER

If 2 and -3 are the zeroes of the quadric polynomial x^2+(a+1)x+b then values of a and b

Posted by Dhanshree Mane 4 years, 7 months ago

CBSE > Class 10 > Mathematics

1 answers

Incredible Foxtrot 4 years, 7 months ago

Putting 2 as p(2) as 2 is a zero of this quadratic polynomial.we get 2a +b = -6 as first equation. Put -3 as p(-3) as -3 is another zero of this quadratic polynomial.we get 3a - b = 6 as second equation. Adding these equations we get a= 0 and after that put a in first we get b= -6

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The given figure consists of four small semi circles of equal radii and two big set in circles of equal radii is 42 cm find the perimeter of the shaded region

Posted by Lovely Singla 4 years, 7 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Guys kya aap ko bhi lgta h ki exam postponed ya cancel honge? Bcz life is most important than exam ................ Aap logo ki is question ko lekr kya rxn h plzz comment krke btao.....now the big revolution is start

Posted by Itachi Uchiha ? 4 years, 7 months ago

CBSE > Class 10 > Mathematics

3 answers

Dp Preetish 4 years, 7 months ago

Canceling the exam is not excuse I’m taken 92% (second ranked ) in 10th So I can give the exam but exam is not that much important than life if students were affected by covid 19 dose government will take the responsibility weekend are not having the age to take vaccine and this generation students not having that much strong immune system by that generation so I’m not saying to cancel the exam I’m just saying postponement or do the normal way how we writed in 9th class or put exam only for 12th and cancel 10th exam 12 is more important than 10

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Mahi Jain 4 years, 7 months ago

Cancel to nhi honge

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Abishai Nathan 4 years, 7 months ago

Most Probally it'll postponed

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Find discriminant of x^2 -3x+1=0

Posted by Renu Gauri 4 years, 7 months ago

CBSE > Class 10 > Mathematics