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

In a leap year only 2 days are extra , so these 2 days could be Monday, Tuesday Tuesday, Wednesday Wednesday, Thursday Thursday, Friday Friday , Saturday Saturday, Sunday Sunday , Monday Out of these, there is only 1 favourable outcome i.e. Saturday , Sunday So probability =1/7

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Arnav Kadam 4 years, 5 months ago

2/7

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Shyam Singh Bangari 4 years, 5 months ago

2/7

1Thank You

Shyam Singh Bangari 4 years, 5 months ago

2 by 7

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Smallest prime number

Posted by Prathyush Patne 4 years, 5 months ago

CBSE > Class 10 > Mathematics

5 answers

Ankita Sharma 4 years, 5 months ago

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Mallika Mondal 4 years, 5 months ago

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Abhishek Singh 4 years, 5 months ago

2Thank You

Abhishek Singh 4 years, 5 months ago

1Thank You

Prathyush Patne 4 years, 5 months ago

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ANSWER

(1-cos²A) cosec²A = 1

Posted by Sakkuru Lipsita 4 years, 5 months ago

CBSE > Class 10 > Mathematics

3 answers

Anchal Bhati 4 years, 5 months ago

Taking L.H.S (1 - cos^2 ) cosec^2 = ( sin^2 ) cosec^2 = sin^2 × 1/ sin^2 = 1

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Mayank Choudhary 4 years, 5 months ago

Sin square ×1/sin square

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Vridhi Sharma 4 years, 5 months ago

Sin square ×1/sin square teta

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ANSWER

Ram and shyam together have 55 marbles. Both of them lost 5 marbles each and product of number of marbles they row have is 164 . Find how many marbles they had to start with?

Posted by Ramanjeet Kaur 4 years, 5 months ago

CBSE > Class 10 > Mathematics

1 answers

Akshat Goyal 4 years, 5 months ago

they both have 55 marbles.so, ram has x no. of marbles and shyam has 55-x no. of marbles. both of lost 5 marbles each so now, no. of marbles Ram has=x-5 no. of marbles Shyam has = 55 - x - 5 = 50 - x now, (x - 5)(50 - x)= 164 50x - x^2 - 250 + 5x = 164 -x^2 + 55x - 250 = 164 -x^2 +55x -414=0 -(x^2 -55x + 414)= 0 x^2 - 55x +414 = 0 x^2 - 46x - 9x - 414 = 0 x(x - 46) -9(x - 46) = 0 (x - 46 )(x - 9) = 0 x = 46,9 so, the no. of marbles Ram and shyam had to start with are 46 and 9 marbles respectively or vice versa.

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Prove that 5-root3 is irrational

Posted by Ranganathan V 4 years, 5 months ago

CBSE > Class 10 > Mathematics

4 answers

Kyira Singh 4 years, 5 months ago

If possible root 5 is rational no. 5=p/q( where q not equal 0 ,, p/q having no factors other than 1) Squaring both sides 5=P2/q2 P2=5q2....1 P2 is divisible by5 P is also divisible by 5 Putting p=5 in 1 (5m)2=5q2 25m2=5q2 5m2 =q2 q2 is divisible by 5 q is also divisible by 5 5 is common factors of p and q This is contradiction So,our assumption is wrong Root 5 is irrational no.

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Rohit Singh 4 years, 5 months ago

Let us assume the given number be rational and we will write the given number in p/q form ⇒5− 3 = q p ⇒ 3 = q 5q−p We observe that LHS is irrational and RHS is rational, which is not possible. This is contradiction. Hence our assumption that given number is rational is false ⇒5− 3 is irrational

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Akshit Kaktwan 4 years, 5 months ago

I know anwer but can't type sorry

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Shyam Singh Bangari 4 years, 5 months ago

soory

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ANSWER

What is mathematics???

Posted by Krish Gandhi 4 years, 5 months ago

CBSE > Class 10 > Mathematics

5 answers

Ankita Sharma 4 years, 5 months ago

Ganit

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Mayank Choudhary 4 years, 5 months ago

Maths full form is math आए गा tabi hoga Safal????

3Thank You

Anthony Samson 4 years, 5 months ago

N43445

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Mallika Mondal 4 years, 5 months ago

????

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Mallika Mondal 4 years, 5 months ago

MATHS full form is meri aatma tujha hamesa satayegi

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ANSWER

form the pair of linear equations for the following problems and find their solutions by any algebraic method:(i)the sum of two numbers is 15.if the sum of their reciprocals is (3/10).find the numbers (ii) twice one number minus three times a second is equal to 2and the sum of these too numbers is 11.find the numbers (iii) two angles are complementary (that is their sum is 90°)if one is 10°more than seven times the other,find the angles

Posted by Stiya Sabu 4 years, 5 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

RS AGARWAL

Posted by Nilesh Tiwari 4 years, 5 months ago

CBSE > Class 10 > Mathematics

1 answers

Sejal Modanwal 4 years, 5 months ago

What is the question

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6/x+2y+5/x-2y=-3 ; 3/x+2y+7/x-2y=-6

Posted by Sonika Chawla 4 years, 5 months ago

CBSE > Class 10 > Mathematics

1 answers

Anthony Samson 4 years, 5 months ago

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ANSWER

The value of the expression

Posted by Shresth Shresth 4 years, 5 months ago

CBSE > Class 10 > Mathematics

1 answers

Sia ? 4 years, 5 months ago

Please ask question with complete information.

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ANSWER

Find the ratio in which theline segment joining the points (1,-3) and (4,5) is divided by x-axis. Also find the coordinates of this point

Posted by Apurva Tyagi 4 years, 5 months ago

CBSE > Class 10 > Mathematics

3 answers

Mallika Mondal 4 years, 5 months ago

Answer this coordinate (17/8 ,0)

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Mallika Mondal 4 years, 5 months ago

Good question

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Sourabh Jangid 4 years, 5 months ago

Qkq

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What is the value of sin30*?

Posted by Deepika Sadhu 4 years, 5 months ago

CBSE > Class 10 > Mathematics

5 answers

Raja Kumar 4 years, 5 months ago

1/2

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Sayyaparaju Sahithi 4 years, 5 months ago

Sin30°=1/2

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Somil Kamra 4 years, 5 months ago

1/2

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Khushi 4 years, 5 months ago

sin30°=1/2

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Suraj Gupta 4 years, 5 months ago

1/2

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ANSWER

Wtf

Posted by Gamer Yt 4 years, 5 months ago

CBSE > Class 10 > Mathematics

2 answers

Oav Papadahandi 4 years, 5 months ago

Yt?

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Oav Papadahandi 4 years, 5 months ago

Hiii

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ANSWER

Sum of the area of 2 square is 260 m square if the difference the parimeter is 24m. Find the side of the two square

Posted by Mallika Mondal 4 years, 5 months ago

CBSE > Class 10 > Mathematics

3 answers

Khushi 4 years, 5 months ago

Hello!! Mallika?? main bmms me padhti hu

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Mallika Mondal 4 years, 5 months ago

Ap konsa school main ho khushi thank you for my answer

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Khushi 4 years, 5 months ago

⇒Let side of bigger square is x m. And side of smaller square is y m. According to given condition, x² + y²=260...(1) And 4x–4y=24 ⇒4(x–y)=24 ⇒x–y=6 ⇒x=6+y...(2) Putting values of (2)and (1) ⇒(6+y)2+y²=260 ⇒36+y²+12y+y²=260 ⇒2y²+12y–224=0 ⇒y²+6y–112=0 ⇒y²+14y–5y–112=0 ⇒y(y+14)–8(y+14)=0 ⇒(y–8)(y+14)=0 ⇒y–8=0,y+14=0 ⇒y=8, y=–14 Putting the values of y in(1) ⇒x=6+y =6+8=14 Hence, sides of squares are 14 m and 8m.

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ANSWER

Basic proportanili ty theorum

Posted by Kamal Singh 4 years, 5 months ago

CBSE > Class 10 > Mathematics

1 answers

Akshit Kaktwan 4 years, 5 months ago

If a line is drawn parallel to one side of a triangle intersecting the other two sides in distinct points, then the other two sides are divided in the same ratio

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₹225 का 45% कितना होगा

Posted by Aman Gupta 4 years, 5 months ago

CBSE > Class 10 > Mathematics