CBSE > Class 09 > Mathematics | CBSE Board | Homework Help

=Angle 69 +Angle 31+angle BAC =180 (angle sum property) =Angle 100+Angle BAC =180 =ANGLE BAC =180 -100=80 Angle BAC=Angle BDC (Angle form on same segment)

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Amit Singh 5 years ago

Which chapter it is

1Thank You

Amit Singh 5 years ago

31 degree is answer by opposite angle

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ANSWER

Formula of trapeIum

Posted by Abhay Chaudhary 5 years ago

CBSE > Class 09 > Mathematics

3 answers

Aditya Kumar 5 years ago

1/2*sum of parallel sides *height

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Amit Singh 5 years ago

a,b is base

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Amit Singh 5 years ago

a+b/2*h

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ANSWER

Find the value of polynomial p(x) =4t⁴+5t³-t²+6 at t=a

Posted by Sanjay Sonune 5 years ago

CBSE > Class 09 > Mathematics

1 answers

Roshni Prajapati 5 years ago

4a^4 +5a^3-a^2 +6

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ANSWER

What is the unit of ratio

Posted by Harshita Gupta 5 years ago

CBSE > Class 09 > Mathematics

4 answers

Soumyajit Kundu 5 years ago

No unit.

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Rajneesh Payal 5 years ago

No unit

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Roshni Prajapati 5 years ago

I unit ratio is a ratio that has a denominator of 1 a unit rate is also called a unit ratio for example 10 feet per second are 55 miles per hour unit rate any ratio can be converted into a unit ratio by dividing the numerator by the denominator

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Jahnavi Verma 5 years ago

I think ratio does not have any unit

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ANSWER

Find the value of the polynomial p(x) =4t⁴+5t³-t²+6

Posted by Sanjay Sonune 5 years ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

Prove that in parallelogram opposite angle are equal

Posted by Amit Singh 5 years ago

CBSE > Class 09 > Mathematics

2 answers

Amit Singh 5 years ago

You have not fully proved

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Roshni Prajapati 5 years ago

Given =a parallelogram ABCD which AC as it's diagonal. To prove= A=C and B=D. Proof= opposite side of parallelogram is parallel So, AB parallel DC and AD parallel BC. AB parallel DC AC

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ANSWER

Find value of polynomial p(x) 4t²+5t²-t²+6 at t=a

Posted by Sanjay Sonune 5 years ago

CBSE > Class 09 > Mathematics

2 answers

Amit Singh 5 years ago

Answer will se 0

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Namrata Jindal 5 years ago

=4a^2 + 5a^2 - a^2 + 6 =8a^2 + 6

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ANSWER

Is √42 + √9 rational or irrational?

Posted by Saumya Tayal 5 years ago

CBSE > Class 09 > Mathematics

6 answers

Soumyajit Kundu 5 years ago

Irrational

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Padumi Chaudhury 5 years ago

It is irrational

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Jahnavi Verma 5 years ago

Yess it is irrational

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Roshni Prajapati 5 years ago

It is rational quki 42 ,2 kai table sai cut ho jata hai or 9,3 kai table mai

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Sanjay Sonune 5 years ago

Irrational

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Saumya Tayal 5 years ago

It is irrational

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ANSWER

Prove that " parallelograms on the same base and between same parallels are equal in area "

Posted by Nikki Poojar 5 years ago

CBSE > Class 09 > Mathematics

1 answers

Saumya Tayal 5 years ago

GIVEN....... //gm ABCD and DCPQ are on same base CD and bw same //s CD and AP TO PROVE.......... ar(ABCD) = ar(DCPQ) PROOF.......... In triangle AQD and BPC AD=BC QD=PC Angle DAQ= angle CBP Therefore these triangles are congruent Therefore their areas are same Add area (QBCD) both sides Answer found

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ANSWER

How to calculate √35

Posted by Sunil Pandhare 5 years ago

CBSE > Class 09 > Mathematics

3 answers

Soumyajit Kundu 5 years ago

Long division method.Hope u can do it.

1Thank You

Rajneesh Payal 5 years ago

5.196

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Sandeep Sandeep 5 years ago

6²-1

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ANSWER

Crose word puzzle ch triangle

Posted by Abhishek Anuj 5 years ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

The length and breadthofahallareintheratio4:3anditsheightis550cm.thecostofderatingitswallsondiwali(includingdoorsandwindows)at ruppee6. 60persquaremetresisruppee5082. Findthelengthandbreadthoftheroom

Posted by Vageswari M 5 years ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

The volume of a cuboid is 1536m3 its length is 16m, and it's breadth and height are in the ratio 3:2. Find the breadth and height of the cuboid

Posted by Shreeman Rai 5 years ago

CBSE > Class 09 > Mathematics

2 answers

Babita Kumari 5 years ago

Volume= l*b*h Let breadth and height be 3x and 2x. 1536= 16*3x*2x 1536/16= 3x*2x 96= 6x2 96/6=x2 16=x2 4= x 12= 3x 8= 2x

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Namrata Jindal 5 years ago

Volume= l * b * h = 16 * 3x * 2x 1536=16 * 6 * x^2 6 *x^2= 1536/16 x^2=96/6 x^2= 16 x = √16 x = 4 Breadth = 3x = 3*4=12m Height = 2x = 2*4 = 8m

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ANSWER

Multiply 6√5 by 6√5

Posted by Sanjay Sonune 5 years ago

CBSE > Class 09 > Mathematics

5 answers

Arpita Soni 5 years ago

(6√5)²=6²*(√5)²=36*5=180

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Sachin Sharma 5 years ago

6√5×6√5=6×6×√5×√5=36×5=180

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Sachin Sharma 5 years ago

6√5×6√5 6×6×√5×√5 36×5 180

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Sanjay Choudhary 5 years ago

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Namrata Jindal 5 years ago

6*6*(√5)^2 =36*5 =180

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ANSWER

Give one example of a situation in which the mean is an appropriate measure of Central tendency the mean is not an appropriate measure of Central tendency but the median is an appropriate measure of Central tendency

Posted by Rashi Raman Tiwari 5 years ago

CBSE > Class 09 > Mathematics

1 answers

Sia ? 5 years ago

(i) mean marks in a test in mathematics.
(ii) When the data has an extreme high value or an extreme low value.

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Give one example of a situation in which the mean is an appropriate measure of Central tendency

Posted by Rashi Raman Tiwari 5 years ago

CBSE > Class 09 > Mathematics

2 answers

Roshni Prajapati 5 years ago

Mean is an approprate measure of central tendency when all the terms of the data are fairly close to each other .Lets take an example - 50,51,55,57,52. Means of all this data is equal to 53 and it is fairly close to all the terms of the data

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Rashi Raman Tiwari 5 years ago

Answer

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ANSWER

Root7+root48

Posted by Tarun Tripathi 5 years ago

CBSE > Class 09 > Mathematics