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

Given, a3 =4 and a9 = -8 a3 = a+2d = 4--------equation 1 a9 = a+8d = -8--------equation 2 Subtracting equation 1 and 2 We get, d = -2-------------equation 3 Putting equation 3 in equation 1 a+2d = 4 a+2(-2) =4 a+4 =4 a= 4+4 a=8 Now, a1 =8 a2 =a+d =8+(-2) = 6 a3 =a+2d=8+2 (-2) =4 a4 =a+3d=8+3 (-2) =2 a5 =a+4d=8+4 (-2) =0 Hence the 5th term of an AP is 0

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Radiation ッYt 6 years, 1 month ago

5 th term is zero

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6. A number is chosen at random from the numbers -3, -4, -3, -2.-1, U, 1, 2,3,4, 5. Then the probability that square of this number is less than or equal to 1 is.

Posted by Bharath S 6 years, 1 month ago

CBSE > Class 10 > Mathematics

4 answers

Piyush Dixit 6 years, 1 month ago

3/11

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Shivang Sharma 6 years, 1 month ago

Ans is e/11

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Anshika ? 6 years, 1 month ago

There are total 3 events satisfying the given data (-1)²=1 0²=0(U) 1²=1 And total outcomes are -11 Hence probability is 3/11 Answer is - 3/11

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Shruti Gupta 6 years, 1 month ago

2/11

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What is a polygons

Posted by Jabir Hk 6 years, 1 month ago

CBSE > Class 10 > Mathematics

2 answers

Piyush Dixit 6 years, 1 month ago

A close figure made up by 5 line segment is called polygon

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Pk . 6 years, 1 month ago

A close figure made up of line segments is called polygons.

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Factorise (5x^2-10xy)-4x+8y

Posted by Ram Panda 6 years, 1 month ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Under root 5 rational number

Posted by Satyanarayan Kumar 6 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Shivang Sharma 6 years, 1 month ago

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What is the common difference when the first term is 12 and fifth term is 0

Posted by Jaspreet Last Chopra 6 years, 1 month ago

CBSE > Class 10 > Mathematics

6 answers

Shivang Sharma 6 years, 1 month ago

-3 is answer

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Pk . 6 years, 1 month ago

-3

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Prachi Janwani 6 years, 1 month ago

Common difference is -3..

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The Heroism 6 years, 1 month ago

The answer is -3

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The Heroism 6 years, 1 month ago

Sorry...

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The Heroism 6 years, 1 month ago

Common difference is 3...

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The distance of the points p(-3,-4) from the X -Axis (in units) is a) 3 b)-3 c)4 d)5

Posted by Avni Gupta 6 years, 1 month ago

CBSE > Class 10 > Mathematics

3 answers

Royal ?? Chundawat 6 years, 1 month ago

-3 units

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Avani Gupta 6 years, 1 month ago

By which formula

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Aadya Singh 6 years, 1 month ago

4 units..

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Write one rational number between a and b

Posted by Ramanand Parsad 6 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Bhavya Khandelwal 6 years, 1 month ago

A/b

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ANSWER

Three bells toll together at interval of 9,12,15 minutes respectively. If they start tolling together after what time will they next toll together

Posted by Satyanarayan Prasad 6 years, 1 month ago

CBSE > Class 10 > Mathematics

2 answers

Anil Sharma 6 years, 1 month ago

180

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Abhinav Nirvan 6 years, 1 month ago

Just take out their LCM

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325 can be expressed as a product of its primes as

Posted by Vedant Sharma 6 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Miss. 1234 6 years, 1 month ago

5×5×13

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A bag contains 5 red balls and some blue balls .If the probability of drawing a blue ball is double that of a red ball, find the number of blue balls in the bag

Posted by Goutham A 6 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Poonam Hooda 6 years, 1 month ago

Let some blue ball x Total balls=x+5 P (drawing red ball)=5/x+5 P (drawing a blue ball)=x/x+5 According to question, P (drawing blue ball)=2P (drawing a re d ball) X/x+5=2 (5/x+5) X/x+5=10/x+5 X=10 Blue balls =10

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What is the value of tan, 90

Posted by Sheik Farhan 6 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Sheik Farhan 6 years, 1 month ago

Not define

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ANSWER

If two vertics of equilateral triangle are (4,3)(-4,3) find third vertex

Posted by Arjun Choudhary 6 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Raja_Aniket_ Namdev? 6 years, 1 month ago

Let the vertices be (x,y) then distance between (x,y) & (4,3) is = ......(1) and distance between (x,y) & (-4,3) is = ..........(2) distance between (4,3) &(-4,3) is = =√(8)²=8 then (1)=(2) or (x-4)²=(x+4)² or x²-8x+16=x²+8x+16 or 16x=0 or x=0 again (1)=8 or (x-4)²+(y-3)²=64.........(3) putting the value of x in (3) then (0-4)²+(y-3)²=64 or (y-3)²=64-16 or (y-3)²=48 or y-3=(+-)4√3 or y=3(+-)4√3 if we choose y as 3+4√3 then origin isn't lies interior of triangle So required vertex is(0,3-4√3).....(ans) by aniket?

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Find the value of p for which the points (-1,3) (2,p) , (5,-1) are collinear

Posted by Lola Kishor 6 years, 1 month ago

CBSE > Class 10 > Mathematics

2 answers

The Heroism 6 years, 1 month ago

The answer is 1...

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Shruti Gupta 6 years, 1 month ago

Substitute these values in the area of triangke formula and write equals to 0. Then solve it, you'll get the answer.

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is Standard mathematics more difficult than previous years paper or of the same level ?

Posted by Aliza Mehdi 6 years, 1 month ago

CBSE > Class 10 > Mathematics

5 answers

Anil Sharma 6 years, 1 month ago

It's very esy

1Thank You

Nikunj Arora 6 years, 1 month ago

No, it 'll be of same level like the previous yrs board papers , only the cbse board hv separated basic mathematics as it 'll of ncert level ... sometimes figures may get changed.

2Thank You

⚜??Brainly Buddy??⚜ 6 years, 1 month ago

U need only hard practice

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⚜??Brainly Buddy??⚜ 6 years, 1 month ago

Difficult

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⚜??Brainly Buddy??⚜ 6 years, 1 month ago

Yes

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