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Adithya Dev A 4 years, 6 months ago

Angle at 1 minute = 6°. Radius = 14 cm. Therefore, angle at 5 minutes = 30°. Thus, area swept in 5 minutes = πr^2 Angle / 360° = 22/7 * 14 * 14 * 30°/360° = 22 * 2 * 14 * 1/12 = 616/12 cm^2. Area not swept = πr^2 - area swept = 616 - 616/12 = 564.66 cm^2.

ANSWER

Express 0.3178 (178bar)in p upon q form

Posted by Priya Dadheech 4 years, 6 months ago

CBSE > Class 10 > Mathematics

2 answers

Adithya Dev A 4 years, 6 months ago

Subtract equation "10 x = 3.178" from equation "10000 x = 3178.178" (where x = 0.3178 and bar above 178.)

Adithya Dev A 4 years, 6 months ago

3175/9990.

ANSWER

If cot A=7÷8 evaluate:(i)(1+sin A)(1- sinA)÷(1+cos A)(1-cos A).(ii)cot²A

Posted by Rafia Laskar 4 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Adithya Dev A 4 years, 6 months ago

(i) (1 - sin A)(1 + sin A) / (1 - cos A )(1 + cos A) = 1 - sin^2 A / 1 - cos^2 A = cos^2 A / sin ^2 A = cot^2 A = (7/8)^2 = 49/64. (ii) cot^2 A = 49/64.

ANSWER

What is a composite number and a prime number? (2 marks)

Posted by Ajay Topno 4 years, 6 months ago

CBSE > Class 10 > Mathematics

4 answers

उपेंद्र वर्मा 4 years, 6 months ago

Composite number is a number who have multiple more than one for example 4,6,8 while the numbers which have only the factor of 1 and the number itself are known as prime number for example 2,3,7,23

Atul Kumar 4 years, 6 months ago

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Atul Kumar 4 years, 6 months ago

Prime no. r those numbers that hv only 2 factor that is one and the number itself.e.g the number 2 is a prime number because it have only 2 factor that is 1 and 2 . Also let 3 is a prime number because it has only 2 factor that is one and the number itself. The factor of three are 1,3. Now, We can say that any number that have only two factor is known as prime number. And composite number are just opposite of prime number. *Composite number are the number that have more than two factor.means any number which have 2+ factor,those number will be known as composite number. E.g 8 is a composite number because it is a factor of 1,2,4,8. Now it can be said that 8 is a composite number as it have more than 2 factor. Thanks,hope u understand.

10Th Grader . 4 years, 6 months ago

prime no. - prime numbers are those numbers which have ony 2 factors , first factor is 1 and the other factore is the number itself . Composite no. - all the numbers having factors more than 2 ( i.e. 1 and the number its self ) - smallest prime number is 2 - smallest composite number is 4 - 1 is neither prime nor composite - many times question comes that find hcf of smallest prime and smallest composite number than people find HCF of 1 and 4 because they think 1 is smallest prime number . - Always remember 1 is neither prime nor composite. - I am your senior 2020 batch , if you want my hand written notes for every subject , u can mail me at. [email protected] - hope i helped you ? Regards ♥️

ANSWER

Hey guys i m ur senior of class 10 and i wanted yo help u ...... Then if u have any queries related to any subjects accept maths ??

Posted by Itachi Uchiha ? 4 years, 6 months ago

CBSE > Class 10 > Mathematics

5 answers

Itachi Uchiha ? 4 years, 6 months ago

Ya sure

10Th Grader . 4 years, 6 months ago

Mail me [email protected] , i can provide notes and pyqs for all subjects especially clear and important notes for english , i am 2020 batch

Jayant Kumar 4 years, 6 months ago

Hlo प्लीज़ reply

Jayant Kumar 4 years, 6 months ago

Hlo sumaila can you please help me In electricity ch

Itachi Uchiha ? 4 years, 6 months ago

Then just write ur question with # senior.........then i m surely help u .......... And also u can share ur feelings with me without stuttering......?..

ANSWER

Solve graphically each of the following pairs of equations a- x+y=3 , 2x+5y-12=0 b- x+4y=0, 2x+8y=0 c- 3x+2y=3 , 6x+4y=15 d- 2x+3y-5=0 , 6x+9y-15=0

Posted by Aakanksha Gupta 4 years, 6 months ago

CBSE > Class 10 > Mathematics

3 answers

Aaron Wilson 4 years, 6 months ago

a) x = 1, y = 2. b) x = 0, y = 0. c) No solution. d) Infinite solutions.

Atul Kumar 4 years, 6 months ago

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Adithya Dev A 4 years, 6 months ago

a) x = 1, y = 2. b) x = 0, y = 0. c) No solution. d) Infinite solutions.

5Thank You

ANSWER

Solve graphically each of the following pairs of equations 1- x+y=3, 2x+5y-12=0 2- x+4y=0, 2x+8y=0 3-. 3x+2y=3, 6x+4y=15 4-. 2x+3y-5=0, 6x+9y-15=0

Posted by Aakanksha Gupta 4 years, 6 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

If alpha beta are the zeros of the polynomial p (x) close is equal to 4 x square + 4 x minus 1 then find the value of 1 upon alpha + 1 upon beta

Posted by Jitendra Singh 4 years, 6 months ago

CBSE > Class 10 > Mathematics

2 answers

Atul Kumar 4 years, 6 months ago

Please like ,share and subscribe my video on YouTube. https://youtu.be/crGyWC-oxjc

Adithya Dev A 4 years, 6 months ago

If α and β are the zeroes of the polynomial p(x) = 4x^2 + 4x - 1, then :- α + β = -b / a = -4 / 4 = -1 and αβ = c / a = 1 / 4. .•. 1 / α + 1 / β = α + β / αβ = -1 / (1/4) = -4//

ANSWER

3x +2x =5x

Posted by Rushikesh Sonawane 4 years, 6 months ago

CBSE > Class 10 > Mathematics

2 answers

Akshit Nailwal 4 years, 6 months ago

Lollllllll

Kabeer Thakur 4 years, 6 months ago

Hjkd

ANSWER

X square -3x - 10 =0

Posted by Kota Pravallika 4 years, 6 months ago

CBSE > Class 10 > Mathematics

2 answers

Atul Kumar 4 years, 6 months ago

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Adithya Dev A 4 years, 6 months ago

x = 5, -2.

Using the above information answer the following case study questions. (i)If the number of toys produced in A be ‘x’ then cost of production of each toy is (in rupees ) (a) 2x + 3 (b) 3x + 2 (c) x(2x + 3) (d) 2x2 + 3 (ii)The number of toys produced in industry A on that particular day is (a) 2 (b) 3 (c) 6 (d) 5 (iii) If the number of toys produced in B be ‘y’ then, cost of production of each toy is ( in rupees ) (a) y(4y + 6) (b) 4y + 6 (c) y(6y+4) (d) 4y2 + 6 (iv)The number of toys produced in industry B on that particular day is (a) 10 (b) 12 (c) 11 (d) 4 (v)The number of toys produced in industry B than industry A on that particular day is (a) 4 (b) 5 (c) 6 (d) 7

ANSWER

Posted by My Redmi 4 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Adithya Dev A 4 years, 6 months ago

Please give the case.

ANSWER

सरफेस एरिया एंड वॉल्यूम

Posted by Sorab Chaudhary Chaudhary 4 years, 6 months ago

CBSE > Class 10 > Mathematics

2 answers

Sia ? 4 years, 6 months ago

Surface area and volume are calculated for any three-dimensional geometrical shape. The surface area of any given object is the area or region occupied by the surface of the object. Whereas volume is the amount of space available in an object.

Adithya Dev A 4 years, 6 months ago

Cube => TSA = 6a^2 , CSA = 4a^2 , Volume = a^3. Cuboid => TSA = 2 (lb + bh + lh) , CSA = 2 (l + b)h , Volume = lbh. Cylinder => TSA = 2πr (r + h) , CSA = 2πrh , Volume = πr^2h. Cone => TSA = πr (r + l) , CSA = πrl , Volume = 1/3 πr^2h. Sphere => TSA = CSA = 4πr^2 , Volume = 4/3 πr^3. Hemisphere => TSA = 3πr^2 , CSA = 2πr^2 , Volume = 2/3 πr^3.

ANSWER

from external point P tangent Pa and pb are drawn to a circle with center O. If angle PAB=50°then find angle AOB

Posted by Jagdeep Sohi 4 years, 6 months ago

CBSE > Class 10 > Mathematics

2 answers

Sia ? 4 years, 6 months ago

Atul Kumar 4 years, 6 months ago

Please like ,share and subscribe my video on YouTube. https://youtu.be/crGyWC-oxjc

ANSWER

Evaluate 2power n + 2 power n-1/2 power n+1-2powern

Posted by Preethisri.K Preethisri.K 4 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Sia ? 4 years, 6 months ago

ANSWER

Chapter - 1 Proof √5 is irrational number

Posted by Kunal Ranjan Ray 4 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Sia ? 4 years, 6 months ago

ANSWER

2+18*199

Posted by Shriyaa / Niithun 4 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Raj Parekh 4 years, 6 months ago

3,584

ANSWER

Cbse board exam of class 10 was cancelled due to covid 19...........

Posted by Jagrati Sharma 4 years, 6 months ago

CBSE > Class 10 > Mathematics

5 answers

Vedprakash Pandey 4 years, 6 months ago

Very bad

Architha Ankitha 4 years, 6 months ago

Everything happens for a reason...

Swayam Gupta 4 years, 6 months ago

Haan toh naacho ab ??

Love Rathore 4 years, 6 months ago

Re bidu

Love Rathore 4 years, 6 months ago

Maja aa gaya

ANSWER

Bodmass

Posted by Minakshi Sharma 4 years, 6 months ago

CBSE > Class 10 > Mathematics

2 answers

Keshav Yadav 4 years, 6 months ago

In BODMAS : B = Bracket O = Of D = Division M = Multiplication A = Addition S = Subtraction

Swayam Gupta 4 years, 6 months ago

Noice ?

ANSWER

y²+5y-6

Posted by Sweetu Patel 4 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Keshav Yadav 4 years, 6 months ago

y = 1, y = -6

ANSWER

Can two no. Have 15 as their hcf and 175 as lcm give reason

Posted by Tarun Kumar 4 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Keshav Yadav 4 years, 6 months ago

No, two numbers can't have 15 as their HCF and 175 as LCM, because 15 is not a factor of 175, so its not possible. Also, LCM is highest number as compared to HCF for two numbers.

ANSWER

Why r value is less than b value

Posted by Jyoti Kashyap 4 years, 7 months ago

CBSE > Class 10 > Mathematics

3 answers

Atul Kumar 4 years, 6 months ago

a to z are variable ,it depends on the user what they let ,it is not necessary that a is greater or b is greater

Atul Kumar 4 years, 6 months ago

i am knowing whatever u r telling.but u are unable to tell tjat u want

Sia ? 4 years, 6 months ago

Please ask question with complete information.

ANSWER

1+1=???????????

Posted by N T 4 years, 7 months ago

CBSE > Class 10 > Mathematics

5 answers

Student 📕🖋 4 years, 6 months ago

11 and 2

Anubhav Yadav 4 years, 6 months ago

Shreya Singh 4 years, 7 months ago

Jyoti Kashyap 4 years, 7 months ago

Sia ? 4 years, 7 months ago

ANSWER

What makes math easy

Posted by Vaishnavi Tomar 4 years, 7 months ago

CBSE > Class 10 > Mathematics

5 answers

Swayam Gupta 4 years, 6 months ago

Concepts and proper practice ?

Anubhav Yadav 4 years, 6 months ago

Practice and understanding

Shreya Singh 4 years, 7 months ago

Hard work

Inspired Person.. 4 years, 7 months ago

Hard work and Your understanding capability buddy..

Shubham Chaudhary 4 years, 7 months ago

Your knowledge and understanding

ANSWER

The zeroes of the polynomial are alpha and beta and the quadratic polynomial is x^2+px+q.then find the value of {alpha÷beta +2}{beta÷alpha+2}.

Posted by Neha Yadav Neha 4 years, 7 months ago

CBSE > Class 10 > Mathematics

1 answers

Sia ? 4 years, 7 months ago

ANSWER

A rational number between 3/5 nd 4/5 is

Posted by Aditi Singh 4 years, 7 months ago

CBSE > Class 10 > Mathematics

5 answers

Vinay Kumar 4 years, 6 months ago

8/10

Keshav Yadav 4 years, 6 months ago

10/15, 11/15, etc...

Rhydhanya Karthi 4 years, 7 months ago

19/30 , 20/30 , 21/30 , 22/30 , 23/30

Anubhav Yadav 4 years, 7 months ago

7/10 is correct answer

Anubhav Yadav 4 years, 7 months ago

3¼,3⅔ etc.

ANSWER

3/x-1/y+9=0,2/x+3/y=5 find x and y

Posted by Rohan Aryan 4 years, 7 months ago

CBSE > Class 10 > Mathematics

2 answers

Rohan Aryan 4 years, 6 months ago

Thanks

Anubhav Yadav 4 years, 6 months ago

x=-1/2. y=1/3

ANSWER

Our cbse class 10 exams have been cancelled so on what basis we got our result

Posted by Harshal Joshi 4 years, 7 months ago

CBSE > Class 10 > Mathematics

3 answers

Rishabh Stark 4 years, 6 months ago

Prebords

Shubham Chaudhary 4 years, 7 months ago

Decide by CBSE after few days

Lomror ? 4 years, 7 months ago

objective criteria?

ANSWER

Which of the following is not a zero of the polynomial x^3 - 6x^2 + 11x -6 . A) 1 B) 2 C) 3 D) 0

Posted by Vaiga Hari 4 years, 7 months ago

CBSE > Class 10 > Mathematics

2 answers

Anubhav Yadav 4 years, 6 months ago

D)0

Adithya Dev A 4 years, 7 months ago

D) 0.

ANSWER

6+√5is a irrational number prove

Posted by Sakshi Singh 4 years, 7 months ago

CBSE > Class 10 > Mathematics

4 answers

Adithya Dev A 4 years, 6 months ago

Prove √5 is irrational (in short steps). Then, as sum of rational number (6) and irrational number (√5) is always irrational, 6 + √5 is also irrational.

Rohit Saini 4 years, 7 months ago

Hlo Sakshi singh

Rohit Saini 4 years, 6 months ago

Hlo

Aakash Anand 4 years, 7 months ago

If possible let 6+√5 is a rational number...... Let 6+√5 =a/b {a and b is co- prime number } # 6+√5 a/b # √5 = a/b - 6 # √5 = a -6b / b # products of rational is always rational # a- 6b is a rational number # √5 is a rational number # But we know that √5 is an irrational number # so it contradict the fact so our is asumalt is wrong...... ................ Aakash Anand ?