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

If yoy want to find 11th term from end of AP,then Reverse the series means your last term be first term and common difference willget multiplied with (-1) After all this you will have a=329,d=-7and, l=56,then find 11th term by using formula: a+10d 329+10(-7)=329-70=259

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Tapas Ranjan Lenka 5 years, 1 month ago

Nhi pta mujhe lol

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Khushi 5 years, 1 month ago

Thanks Sakshi

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Sakshi Sahani 5 years, 1 month ago

al=l-(n-1)d A11=329-(11-1).7 A11=329-70 A11=259

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In the school garden Ajay brijesh chinki and deepak planted their flower a fifth student Eshwar wanted

Posted by U Ukij 5 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Harsh Verma_Xc 4 years, 8 months ago

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1). Volume and surface area of a solid hemisphere are numerically equal. What is the diameter of hemisphere? 2). A funnel is the combination of ___________ of a cone and ____________. 3). Total surface area of right circular cone is__________.

Posted by Harshal Joshi 5 years, 1 month ago

CBSE > Class 10 > Mathematics

4 answers

Harshal Joshi 5 years, 1 month ago

Thanks..., ?

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Chehak Kohli 5 years, 1 month ago

3) π(r + l) r

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Chehak Kohli 5 years, 1 month ago

2) A funnel is a combination of frustum of a cone and cyclinder.

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Chehak Kohli 5 years, 1 month ago

1) Volume of hemisphere = SA of hemisphere 2/3πr^3=3πr^2 2/3r=3 =9/2 diameter =9/2x2 =9

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The radii of the bases of cylinder and a cone are in the ratio 3:4 and their heights are in ratio 2:3. What is the ratio of their volumes?

Posted by Harshal Joshi 5 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Chehak Kohli 5 years, 1 month ago

https://brainly.in/question/9910 (Check the answer on this site)

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The angle of elevation of a tower from a point on same level as the foot of the tower is 30°. On advancing 150m towards the foot of the tower, the angle of elevation of the tower becomes 60°. Show that the height of the tower is 129.9 metres. (use root3 =1.732)

Posted by Harshal Joshi 5 years, 1 month ago

CBSE > Class 10 > Mathematics

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Find the nature of roots 1) x^2- 8x + 16 = 0 2) 2x^2 - 2x + 1= 0

Posted by Ok Wahsi 5 years, 1 month ago

CBSE > Class 10 > Mathematics

2 answers

Chehak Kohli 5 years, 1 month ago

2) a = 2, b = -2, c = 1 D = b^2 - 4ac D = (-2)^2 - 4 x 2 x 1 D = 4 - 8 D = -4 Therefore, there are no real roots.

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Chehak Kohli 5 years, 1 month ago

1) a = 1, b = -8, c = 16 D = b^2 - 4ac D = (-8)^2 - 4 x 1 x 16 D = 64 - 64 D = 0 Therefore, there are real and equal roots.

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Form the quadratic polynomials, whose zeroes are given below:2/3 and-1/3

Posted by Stiya Sabu 5 years, 1 month ago

CBSE > Class 10 > Mathematics

3 answers

Sarangi Jayakumar 5 years, 1 month ago

x2-2x-1 is quadratic equation

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Agnus Agnus 5 years, 1 month ago

Alpha=2/3 Beta=-1/3 Alpha+beta=2/3-1/3 =1/3 Alphaxbeta=2/3×1/3 =2/9 =X²-(alpha+beta)x+(alphabeta) =X²-1/3x+2/9 =(9x²-3x+2÷9)k =let k be 9 Therefore, 9x²-3x+2 is the Quadratic equations

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Stiya Sabu 5 years, 1 month ago

Please reply guys

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Find the co-ordinates of the points of trisection of the line segment joining the points (3, – 1) and (6, 8).

Posted by Varun Soni 5 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Chehak Kohli 5 years, 1 month ago

Use this formula : (mx2+nx1/m+n,my2+ny1/m+n) . m and n are 1 and 3

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If the sum of the zeroes of the quadratic polynomial 3x2 -kx+6 is 3, then find the value of k.

Posted by Mahi Jain 5 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Abhijot Bedi 5 years, 1 month ago

Sum of zeroes =-b/a 3=k/3 K=3*3 K=9

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Sides AB and AC and median AD of a ? ABC are respectively proportional to sides PQ and PR and median PM of another ? PQR. Show that ? ABC is similar to ? PQR.

Posted by Gaurav Pandey 5 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Chehak Kohli 5 years, 1 month ago

https://www.toppr.com/ask/en-in/question/sides-ab-and-ac-and-median-ad-of-a-triangle-abc-are-respectively-proportional-to/ Refer to this site for the answer.

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Without doing long division method, state weather the following rationa numbers are terminating or non-terminating decimal expansion

Posted by Jyoti Saikia 5 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Chehak Kohli 5 years, 1 month ago

For terminating decimal the prime factorisation of denominator should only contain the factor 2 or factor 5 or both factors 2 and 5. prime factorisation of denominator containing factors 2 & any other number or factors 5 & any other number or faciors 2,5 & any other number are non terminating decimals.

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Chapter 13 surface area and volume exercise

Posted by Pratiksha Vijay Birare 5 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Chehak Kohli 5 years, 1 month ago

Which exercise?

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If secA=x+1/4x, prove that secA+tanA=2x or 1/2x?

Posted by Harshal Joshi 5 years, 1 month ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Diagnols of a trapezium, intersect each other at the point O. PQ is parallel to RS and PQ = 3RS. Find the ratio of POQ and ROS.

Posted by Chehak Kohli 5 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Chetan Jindal 5 years, 1 month ago

https://www.studyrankersonline.com/18689/diagonals-of-trapezium-pqrs-intersect-each-other-at-point-0-pq-rs-and-pq-3-rs ?? Go to this website and check answer

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A street lamp is find on a pole 6 metre above the level of the street. If a women of height 1.5 metre casts a shadow of 3 metre, find how far she is away from the base of the pole.

Posted by Chehak Kohli 5 years, 1 month ago

CBSE > Class 10 > Mathematics

2 answers

Chehak Kohli 5 years, 1 month ago

Thanks :)

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Khushi Gehlot 5 years, 1 month ago

Answer- 9m By the AA simailarity criteria both the triangles aare similar so 6/1.5 = 3+x/3 (where x is the distance between the base of pole and women) 4 = 3+x/3 3+x= 3×4 3+x=12 X=12-3 X=9 m

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The angle of elevation of an aeroplane from a point on the ground is 60 degree. After a flight of 30 seconds the angle of elevation becomes 30 degree. If the aeroplane is flying at a constant height of 3000 root 3 metre, find the speed of the aeroplane.

Posted by Chehak Kohli 5 years, 1 month ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Prove that ✓6 is irrational

Posted by Khushi Gehlot 5 years, 1 month ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Find a quadratic polynomial whose zeroes are 2 and -5.

Posted by Chehak Kohli 5 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Bhumi Verma 5 years, 1 month ago

Sum of the zeroes =2 ...........Product of the zeroes = -5...............x2-(sum of the zeroes)x+(product of the zeroes).............x2-(2)x+(-5)............x2-2x-5

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Zeroes of p(x) = x^2 - 2x - 3 are (a) 1, -3 (b) 3, -1 (c) -3, -1 (d) 1, 3

Posted by Chehak Kohli 5 years, 1 month ago

CBSE > Class 10 > Mathematics