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Find the mean median and mode 2,5,7,9,4,3,2,1,2,

Posted by Priyanshu Gupta 8 years, 4 months ago

CBSE > Class 09 > Mathematics

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Find the mean media and mode

Posted by Priyanshu Gupta 8 years, 4 months ago

CBSE > Class 09 > Mathematics

1 answers

Varun Banda 8 years, 4 months ago

MEAN

Mean is also known as the average. The mean is found by adding up all of the given data and dividing by the number of data entries.

MEDIAN

The median is the middle number. First you arrange the numbers in order from lowest to highest, then you find the middle number by crossing of the number until you reach the middle.

MODE

Mode this is the number that occurs most often.

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How to draw an angle of 45

Posted by Yuvraj Singh 8 years, 4 months ago

CBSE > Class 09 > Mathematics

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What is atomic mass ?

Posted by Mradul Verma 8 years, 4 months ago

CBSE > Class 09 > Mathematics

1 answers

The Devil Prince 8 years, 4 months ago

Atomic mass is the total mass of the elements of the atom those are electron ,proton ,neutron Atomic mass =number of protons +no of neutrons

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The diagonals AC and BD OF a parallelogram intersect at the point of. If AC =6.8cm and BD=13.6cm find the value of OC

Posted by Laxman Kumar 8 years, 4 months ago

CBSE > Class 09 > Mathematics

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Ravish tells his daughter Aarushi,"Seven-year ago ,Iwas seven times as old as you were then .Also ,three year from now ,Ishall be three times as old as you will be ,"..If present ages of Aarushi and Ravish are x and y years respectively. Solve the equation .

Posted by Eva Sony 8 years, 4 months ago

CBSE > Class 09 > Mathematics

1 answers

The Devil Prince 8 years, 4 months ago

7x-y-42=0. ,. 3x-y+6=0

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Is zero something.... Or it means nothing?????

Posted by Humais Majeed 8 years, 4 months ago

CBSE > Class 09 > Mathematics

1 answers

Saismita Behera 8 years, 4 months ago

O is whole number

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If A,B,C are the interior angles of triangle.prove that sin B+C½=Cos A½

Posted by Hrishabh Ravi 8 years, 4 months ago

CBSE > Class 09 > Mathematics

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If the diagonal of a parallelogram are equal , then show that it is a rectangle

Posted by Kiran Chejara 8 years, 4 months ago

CBSE > Class 09 > Mathematics

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Define circle

Posted by Aditya Kapoor 8 years, 4 months ago

CBSE > Class 09 > Mathematics

1 answers

Oshii Shrivastav 8 years, 4 months ago

Hii

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What is the cube of 76

Posted by Anant Tyagi 8 years, 4 months ago

CBSE > Class 09 > Mathematics

1 answers

Oshii Shrivastav 8 years, 4 months ago

300,763

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Find the area of triangle whose sides are respectively 150 cm ,120cm and ,200cm

Posted by Pulkit Saxena 8 years, 4 months ago

CBSE > Class 09 > Mathematics

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if a+b+c=0 then find a^3+b^3+c^3

Posted by Suvansh Boss 8 years, 4 months ago

CBSE > Class 09 > Mathematics

1 answers

Vineeta Sharma 8 years, 4 months ago

^{a3+b3+c3-3abc=(a+b+c)(a}^{2+b3+c2-ab-bc-ca)}

^{if( a+b+c)=0 ,then}

^{a3+b3+c3=3abc}

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If the bisectors of a pair of alternate angles formed by a transversal with the given lines are parallel, prove that the given lines are parallel.

Posted by Kunal Agrawal 8 years, 5 months ago

CBSE > Class 09 > Mathematics

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x³-8x²+x+42

Posted by Prem Kumar 8 years, 5 months ago

CBSE > Class 09 > Mathematics

1 answers

Kritika Trehan 8 years, 4 months ago

Factors are : {tex}\left(x-3\right)\left(x-7\right)\left(x+2\right){/tex}

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ABCD is a rhombus andAB is produced to E and F such that AE=AB=BF prove that EDand FCare perpendicular to each other

Posted by Harman Arora 8 years, 5 months ago

CBSE > Class 09 > Mathematics

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25 ka square

Posted by Harsh Batham 8 years, 5 months ago

CBSE > Class 09 > Mathematics

3 answers

Kuldeep Patel 8 years, 5 months ago

625 Henii..

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Rising Angel 8 years, 5 months ago

Oh yes square of 25 is 625

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Oshii Shrivastav 8 years, 5 months ago

625

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In ∆abc angel b =90° be perpendicular on ac . Prove that angel and= angle acb

Posted by Rachit Dwivedi 8 years, 5 months ago

CBSE > Class 09 > Mathematics

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a die is thrown 100 times.if probability of getting an even no.is 2/5.how many times an odd no. is obtained

Posted by Khushi Chhabra 8 years, 5 months ago

CBSE > Class 09 > Mathematics

1 answers

Monika Manivannan 8 years, 5 months ago

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Find the volume of sphere whose surface area is 154 cm

Posted by Anurag Yadav 8 years, 5 months ago

CBSE > Class 09 > Mathematics

2 answers

Monika Manivannan 8 years, 5 months ago

179.66cm³

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Varun Banda 8 years, 5 months ago

Surface area of sphere=4×22/7×r²

4×22/7×r² =154cm²

r²=154×7/4×22

r=sq root of12.25

r=3.5cm

volume of the sphere=4/3×22/7×r³

^{=4/3×22/7×3.5×3.5×3.5}

^=179.67cm3

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40×10

Posted by Tanisha Khan 8 years, 5 months ago

CBSE > Class 09 > Mathematics

1 answers

Khushnuda Tasmeer 8 years, 5 months ago

Its 400 yaar too easy

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The diagonal AC and BD of a parallelogram intersect at the point O.if AC=6.8cm and BD =13.6cm,find the value of OC

Posted by Aakash Gupta 8 years, 5 months ago

CBSE > Class 09 > Mathematics

1 answers

Suraj Sahu 8 years, 5 months ago

3.4 cm as diagonals bisect each other

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SA= 792 cm2 Ratio of radius and h=4:7 Find Radius

Posted by Sreyas Pillai 8 years, 5 months ago

CBSE > Class 09 > Mathematics

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If the sides of triangle are tripled then what is the new area

Posted by Vansh Chandak 8 years, 5 months ago

CBSE > Class 09 > Mathematics

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Prove that the bisector of angel of linear pair at 90 degree angle

Posted by Aryan Pathak 8 years, 5 months ago

CBSE > Class 09 > Mathematics

1 answers

Kritika Trehan 8 years, 5 months ago

To prove: Angle A/2 + angle B/2 = 90 degree

Linear pair of angles are supplementary.

Therefore, ∟A + ∟B = 180 ⁰

∟A = A/2 + A/2 [ bisecting linear pairs]

∟ A + ∟ B = 180 ⁰

∟A/2 + ∟A/2 + ∟B/2 + ∟B/2 = 180 ⁰

2 ∟A/2 + 2 ∟B/2 = 180 ⁰

2 [ ∟A/2 + ∟B/2 ] = 180 ⁰

∟A/2 + ∟B/2 = 180/2

∟A/2 + ∟B/2 = 90 ⁰

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Ifx/y+y/x =-1(where x,y≠0), then find the value of

Posted by Vishnu Senghani 8 years, 5 months ago

CBSE > Class 09 > Mathematics

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Weightage of 2017 Maths sa2

Posted by Ayush Jain 8 years, 5 months ago

CBSE > Class 09 > Mathematics

1 answers

Prerana T 8 years, 5 months ago

Number system: 8 marks Algebra:17 marks Co-ordinate geometry: 4 marks Geometry: 28 marks Menstruation: 13 marks Statistics & probability : 10 marks. Total:80 marks. Periodic test: 10 marks Notebook submission: 5 marks Activities submission: 5marks Total:20 marks This is the weightage of 2017 maths sa2 Hi I am Prerana

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X4+4 Factor

Posted by Alok Kumar 8 years, 5 months ago

CBSE > Class 09 > Mathematics