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X+1 and x-1 are factors 9f ax3 + x2-2x+b.find a and b.

Posted by Debashis Patra 5 years, 1 month ago

CBSE > Class 09 > Mathematics

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If x²+y²=49 and x-y=3 then find the value of x³-y³?

Posted by Vinayak Khandelwal 5 years, 1 month ago

CBSE > Class 09 > Mathematics

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The following number of goals were scored by a team in a series of 10 matches : 2,3,4,5,0,1,3,3,4,3, find the mean median and mode of these scores

Posted by शिवम चौहान 5 years, 1 month ago

CBSE > Class 09 > Mathematics

2 answers

Saksham Chugh 5 years, 1 month ago

mean = 2.8 median = 3 mode = 3

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Shubhangi Yadav 5 years, 1 month ago

Mean = x = 2+3+4+5+0+1+3+3+4+3÷10 =28÷10 =2.8 Median = 0,1,2,3,3,3,3,4,4,5 = 1÷2 (10÷ 2 +10 + 1 ÷ 2 ) = 1÷2 (5 observation + 3 observation) = 1÷2 ( 3+3 ) =1÷2 (6) = 6÷2 = 3 Mode = 3 (because here observation 3 comes maximum times)

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If x-1*x=7 then find the value of xcube-1*xcube

Posted by Rakesh Sharma 5 years, 1 month ago

CBSE > Class 09 > Mathematics

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Two parallelogram are on the same base and between the same parallel. The ratio of their areas is (A)1:2 (B)1:1 (C)2:1 (D)3:1

Posted by Isha Bedia 5 years, 1 month ago

CBSE > Class 09 > Mathematics

1 answers

Anjali Singh 5 years, 1 month ago

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Exercise 13.3 solution

Posted by Neha Sagar 5 years, 1 month ago

CBSE > Class 09 > Mathematics

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A student has rectangular sheet of dimensions 14cm ×22cm. He want to make a cylinder in such a way that volume is minimum.find the height of cylinder

Posted by Abhishek Singh 5 years, 1 month ago

CBSE > Class 09 > Mathematics

1 answers

Neha Sagar 5 years, 1 month ago

How

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Can a child be stopped from writing an exam due to not being able to complete the portfolio due to losing the note

Posted by Psych Ultra 5 years, 1 month ago

CBSE > Class 09 > Mathematics

1 answers

Varun Yadav 5 years, 1 month ago

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What is power of any number

Posted by Vikram Kumar 5 years, 1 month ago

CBSE > Class 09 > Mathematics

1 answers

Jaya Prakash Gutha 5 years, 1 month ago

The number of times that the no multiplies itself is called the power of that particular number. Eg: 3^4 means that 3 multiplies itself 4 times, i.e., 3x3x3x3.

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If tanA = √2 then the value of cosA - sinA/ cosA + sinA is

Posted by Sanskriti Jais 5 years, 1 month ago

CBSE > Class 09 > Mathematics

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Ex-8.1

Posted by Vansh Gupta 5 years, 1 month ago

CBSE > Class 09 > Mathematics

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The mean of p, q, r, s and t is 28. If the mean of p, r and t is 24, what is the mean of q and s.

Posted by ? Ishika ?? 5 years, 1 month ago

CBSE > Class 09 > Mathematics

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If the volume of a sphere is numerically equal to surface area. Then radius of sphere is

Posted by Sneha Soni 5 years, 1 month ago

CBSE > Class 09 > Mathematics

3 answers

Varun Yadav 5 years, 1 month ago

Double of it

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Mahaksh Jaitly 5 years, 1 month ago

Dil da ni mada tera sidhu musse wala

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Rajneesh Payal 5 years, 1 month ago

Doublr

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If a^x=c^q=b and c^y=a^z=d the prove that xy=qz.

Posted by Anushka Dixit 5 years, 1 month ago

CBSE > Class 09 > Mathematics

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When a non negative no. is added to both sides of a linear equation then solution is............... .

Posted by Anushka Dixit 5 years, 1 month ago

CBSE > Class 09 > Mathematics

3 answers

Anushka Dixit 5 years ago

I think its same

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Varun Yadav 5 years, 1 month ago

1Thank You

Rajneesh Payal 5 years, 1 month ago

Positive

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Derive the formula of an equilateral and Isosceles triangle by Heron,s formula

Posted by Adarsh Singh 5 years, 1 month ago

CBSE > Class 09 > Mathematics

1 answers

Satyam Singh 5 years, 1 month ago

Heron,s formula is=a+b+c/2 Then, aera=√s(s-a)(s-b)(s-c)

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The line drawn through the centre of a circle to bisect a chord is perpendicular to the chord

Posted by Lahari Raju 5 years, 1 month ago

CBSE > Class 09 > Mathematics

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Express the following in the form of p by q where p and q are integers and q is not equal to zero 0.6

Posted by Nitish Kumar 5 years, 1 month ago

CBSE > Class 09 > Mathematics

1 answers

Paras Deep 5 years, 1 month ago

Let x=0.666------------(i) Since repeating digit is only one so multiply both sides by 10 10x=6.6666-----------(ii) Subtract (i) from (ii) 10x-x=6.666-0.666 9x=6 x=6/9 x=2/3( converting 6/9 to simplest/ lowest form)

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x^2+32x-420 quadratic polynomial

Posted by Amisha Shamnani 5 years, 1 month ago

CBSE > Class 09 > Mathematics

1 answers

Rajneesh Payal 5 years, 1 month ago

Quadratic

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Work done against gravity

Posted by Mahesh Joshi 5 years, 1 month ago

CBSE > Class 09 > Mathematics

1 answers

Rajneesh Payal 5 years, 1 month ago

When it displace at height

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Work done against gravity explain plz

Posted by Mahesh Joshi 5 years, 1 month ago

CBSE > Class 09 > Mathematics

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If x=0 and y=k is the solution for the equation 5x-3y=3, find the value of k?

Posted by Harsh Jaiswal 5 years, 1 month ago

CBSE > Class 09 > Mathematics

5 answers

Rajneesh Payal 5 years, 1 month ago

-1

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Shivam Rohilla 5 years, 1 month ago

K=(-1)

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Sakshi Bansal 5 years, 1 month ago

-1

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P.V. Padmaja 5 years, 1 month ago

K=(-1)

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Dhanraj P 5 years, 1 month ago

5*0-3K=3 0-3K=3 -3K=3 K=-3/3 K=-1

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Find the minimum no. of brick each dimension 22.5cm,11.5cm and 7.5cm required to construct a wall 1.5m long, 6m high and 1.5m thick

Posted by Harsh Singh 5 years, 1 month ago

CBSE > Class 09 > Mathematics

2 answers

Sakshi Bansal 5 years, 1 month ago

16000/23

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Sakshi Keshwani 5 years, 1 month ago

I don't know

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If E is an event then what is P(E)+P(not E)?

Posted by Ayushman Pradhan 5 years, 1 month ago

CBSE > Class 09 > Mathematics

2 answers

Amrita Kumari 5 years, 1 month ago

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Sakshi Bansal 5 years, 1 month ago

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What is sum of P(E) + P(E)

Posted by Sss Ooo 5 years, 1 month ago

CBSE > Class 09 > Mathematics

2 answers

Shivam Rohilla 5 years, 1 month ago

1 is the answer

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Sakshi Bansal 5 years, 1 month ago

Ques is wrong its P(E)+P(NOT E ) and answer is 1

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An isosceles triangle has perimeter 30cm and each of the equal sides is 12cm find the area of the triangle.

Posted by Nutan Kurbet 5 years, 1 month ago

CBSE > Class 09 > Mathematics

1 answers

Ayushman Pradhan 5 years, 1 month ago

34.85

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How to get good marks in maths??

Posted by Bv F Bbvc 5 years, 1 month ago

CBSE > Class 09 > Mathematics

3 answers

P.V. Padmaja 5 years, 1 month ago

By doing regular practice especially of geometry part. It requires regular practice. Doing once or twice geometry is not correct. Do continuous practice of it

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Priyanshu Gupta 5 years, 1 month ago

By studying?✏

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Priyanshu Gupta 5 years, 1 month ago

By getting a regular revision..

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write linear equations represented a line which is parallel to x-axis and is at a distance of 2 unit of the left side of y -axis

Posted by Muskan Singh 5 years, 1 month ago

CBSE > Class 09 > Mathematics