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

The numberd cards from 1to10 Only 4, 6, 8, 9, 10 are composite numbers.(5 cards in each suit) There Four suits in playing cards. So 4 × 5 = 20 cards in playing cards are composite cards So 20÷52 = 5/13. Answer: probability of composite cards in well shuffle Deck of playing cards is 5/13

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Prove that √7 is irrational number

Posted by Vanshika Bhatt 2 years ago

CBSE > Class 10 > Mathematics

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collect the data of 5 major crops of punjab and odisha find its probability and represent it with bar graph

Posted by Jasvir Singh 2 years ago

CBSE > Class 10 > Mathematics

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If √3-1/√3+1=a-b√3,then i) a=b=1 ii) a=2,b=1 iii)a=2,b=-1 iv)a=-2,b=1

Posted by Yenni Rohit 2 years ago

CBSE > Class 10 > Mathematics

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Which of the following is polynomial x2-6√x+2

Posted by Binodini Bhoi 2 years ago

CBSE > Class 10 > Mathematics

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√3u+√2v=3,√2u+√3v=4

Posted by Ayesha Akhtar 2 years ago

CBSE > Class 10 > Mathematics

2 answers

Sanjay Mahaddev 2 years ago

Answer u = 3√3 - 4√2 v = √3(4-√6)

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Sanjay Mahaddev 2 years ago

It's difficult to type √ numbers

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Find the ratio in which the line segmentjoinung the points (-3,10) and (6,-8) is divided by (-1,6)

Posted by Mayank Joshi 2 years ago

CBSE > Class 10 > Mathematics

1 answers

Manas Soni 2 years ago

A(-3,10) A(x1, y1) B(6,-8) B(x2,y2) R(-1,6) R(x,y) Let the ratio m1:m2 be k:1 So, R(x)=(m1x2+m2x1)÷m1+m2 -1=[k×(6)+1×(-3)]÷k+1 By cross multiplication -1(k+1)=6k-3 -k-1=6k-3 By transportation -k-6k=-3+1 -7k=-2 7k=2 K=2/7 K/1=2/7 K:1=2:7 As we know that k:1=m1:m2 So, 2:7 is ratio

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There are several situations which can be mathematically represent ated by two equations that are not linear to start with. But we alter them so that they are reduced to a pair of linear equations

Posted by Tanvi I 2 years ago

CBSE > Class 10 > Mathematics

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Is the pair of liner equipment

Posted by Amarjeet Shah 2 years ago

CBSE > Class 10 > Mathematics

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Mathematics📐📊📚

Posted by Manish Singh Dewda Rajputana Dewda Ji 2 years ago

CBSE > Class 10 > Mathematics

2 answers

Navyashree Sunar 2 years ago

Sir i am not understanding Trigonometry so can give any suggestions

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Navyashree Sunar 2 years ago

Gm sir

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इप्सा मदर जीरोज आफ पॉलिनॉमियल एक्स स्क्वायर माइनस 23 स्क्वायर माइनस टू एक्स माइनस 12 is 1then p take the value of

Posted by Prakash Yadav 2 years ago

CBSE > Class 10 > Mathematics

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If you travel by an auto rickshaw the fare for the first kilometre is different from the red per kilometre for the remaining distance the total fare for a distance of 20 km is 37.70 and that for a distance of 26 km is 48.5 0 find the out of a for the first km and for each successive km

Posted by Saniya Yadav 2 years ago

CBSE > Class 10 > Mathematics

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(x+2)³= 2x(x²-1)

Posted by Vikram Kumar 2 years ago

CBSE > Class 10 > Mathematics

1 answers

Anup Kumar 2 years ago

Not a quadratic equation

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Proove 2√3-1 is irrational number

Posted by Divyam Jain 2 years ago

CBSE > Class 10 > Mathematics

1 answers

Ritika Singh 2 years ago

Let 2√3-1 be a rational number. 2√3-1= p/q [ where p and q are co-prime integers ]. 2√3 = p/q + 1. 2√3 = p + q / q. √3 = p + q / q × 2. √3 = p + q / 2q. Here, Rational = Irrational. This is not possible. Hence, our assumption was wrong. Therefore, 2√3-1 is irrational. Hope it helps you ✨.

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Why frank namaste

Posted by Jashra Kausar 2 years ago

CBSE > Class 10 > Mathematics

1 answers

Jashra Kausar 2 years ago

There is nothing

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Solve the solve the following of equation if x and y anyone method 1) ax+by=-1 Bx+ay=(a+b)²-1÷a²+b²

Posted by Preksha Vyas 2 years ago

CBSE > Class 10 > Mathematics

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Pie chart of famous food items of odisha in terms of liking of people

Posted by Neitik Bansal 2 years ago

CBSE > Class 10 > Mathematics

4 answers

Lvprt Ranu 2 years ago

I need answer plz

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Jasmine Class 10 2 years ago

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Jasmine Class 10 2 years ago

no get answer

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Jasmine Class 10 2 years ago

answer

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Square root of 4.950625 by long division method.

Posted by Ritika Singh 2 years ago

CBSE > Class 10 > Mathematics

1 answers

Aditya Ranjan 2 years ago

2.225

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A train covers a distance of 480km at a uniform speed if speed had been 8km/hr less than it would have taken 3 hours more to cover the same distance. Find the original speed of the train

Posted by M.Keshvi Priya 2 years ago

CBSE > Class 10 > Mathematics

2 answers

Abhinav Jain 2 years ago

40 km/hr

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Rohit Sharma 2 years ago

Let the speed of the train be x km/hr. Then Time taken to travel a distance of 480km=x480hr Time taken by the train to travel a distance of 480km with the speed (x−8)km/hr=x−8480hr It is given that if the speed had been 8km/hr less, then the train would have taken 3 hours more to cover the same distance ∴x−8480=x480+3 ⇒x−8480−x480=3⇒x(x−8)480(x−x+8)=3⇒x(x−8)480×8=3 ⇒3x(x−8)=480×8⇒x(x−8)=160×8⇒x2−8x−1280=0

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A 1.5 m tall boy is standing at some distance from a 30 m tall buildings. The angle of elevation from his eyes to the top of the building increase from 30 degree to 60 degree as he walks toward the building. Find the distance he walked towards the building

Posted by Sanvi Singh 2 years ago

CBSE > Class 10 > Mathematics

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A life insurance agent found the following data for distribution of ages of 100 policy holders . calculate the median age,if policies are given only to person having age 18 years onwards but less than 60 year

Posted by Ambika Verma 2 years ago

CBSE > Class 10 > Mathematics

1 answers

Rohit Sharma 2 years ago

Class intervalFrequencyCumulative frequency 15−202 2 20−254 6 25−3018 24 30−3521 45 35−4033 78 40−4511 89 45−503 92 50−556 98 55−602 100 ⇒ N=100 then, 2N=50 The cumulative frequency just greater then 50 is 78. ∴ Median class =35−40 Here, l=35,h=5,f=33,cf=45 Median=l+f2N−cf×h ⇒ Median=35+3350−45×5 ⇒ Median=35+3325=35.76

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write down the decimal explanation of the following rational numbers by writing there denominator in the form 2ⁿ5m where m n are non negative integers 3/5

Posted by Sahildeep Singh Billing 2 years ago

CBSE > Class 10 > Mathematics

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find the zeroes of the quadratic polynomials and verify the relationship between the zeroes and the coefficients :- 1) 5x² - 29x + 20

Posted by Aditya Jadhavrao 2 years ago

CBSE > Class 10 > Mathematics

2 answers

Vivek Solanki 2 years ago

5x²-29x+20 5x²-25x-4x+20 5x(x-5)-4(x-5) (x-5) (5x-4) X=5,X=4/5 Let alpha be 5 and bita be 4/5 Alpha +bita =5+4/5 =24+4/5 =29/5 -b/a =-(-29)/5 =29/5 Hence proved,alpha +bita =-b/a Alpha bita =5(4/5) =4 c/a =20/5 =4 Hence proved, alpha bita =c/a

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Vivek Solanki 2 years ago

Alpha =5 and bita =4/5

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Is the following situation possible? If so, determine their present ages. The sum of the ages of two friends is 20 years. Four years ago, the product of their ages in years was 48.

Posted by Kamalesh Kamalesh 2 years ago

CBSE > Class 10 > Mathematics