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A spherical glass vessel has a cylindrical neck 8cm long , 2cm in diameter,the diameter of the spherical part is 8.5cm ,by measuring the amount of water it holds , a child finds it's volume to be 345cm³ check whether she is correct , taking the above as the inside measurement and pie= 3.14

Posted by Veeral Thakur 1 year, 8 months ago

CBSE > Class 10 > Mathematics

1 answers

Gourav Sharma 1 year, 8 months ago

Formula for volume of cylinder is πr²h so value of π=3.14 and radius is 1cm and height is 8cm 3.14×1×1×8=25.12cm So volume of cylinder is 25.12cm now volume of sphere is 4/3πrcube so 4/3×3.14×4.25×4.25×4.25=345cm³

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Curreney is a medium of exchange for goods and services. Ashok made a payment to shopkeeper, for the article he purchased, in the denomination of ₹500 and ₹20.He paid ₹ 2640 to the shopkeeper. If all the denomination of 500 is to be chamged by ₹ 100 then the boy could have paid 2640 only Assume the number of currency notes of ₹ 500 as 'f and the number of currency notes of ₹20 as 'g" Based on the above information, answer the following questions: Write a lincar cquation representing the amount paid by Ashok. If Ashok had to pay ₹2800 to the shopkeeper. (1) How many ₹20 notes did he need? (ii) How many total currency notes did Ashok gave to shopkeeper?

Posted by Neeraj P Nair 1 year, 8 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

How to solve 8.1

Posted by Harshita Pandey 1 year, 8 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

The short and long hands of a clock are 6 cm and 8 cm long respectively then find the sum of the distance travelled by their tips in one day or the radius of the wheel of a bus is 25 CM if the speed of the bus is 33 km per hour then how many Revolution wheel the wheel make in 1 minute

Posted by Archana Baliyan 1 year, 8 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

The following distribution gives the daily income of 35 workers of a factory Daily income Number Less than Less than Less than Less than Less than 120 140 160 180 200 of 5 16 24 35 Find the mode and median for the above distribution

Posted by Mohamed Sannaan 1 year, 8 months ago

CBSE > Class 10 > Mathematics

2 answers

Harshita Pandey 1 year, 8 months ago

8.1

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Sanvidha Ghule 1 year, 8 months ago

20.3

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ANSWER

If 4 tan theta =3 , then find the value of (4sin theta-cos theta)/(4sin theta+cos theta)?

Posted by Krittika 💜💜 Patil 1 year, 8 months ago

CBSE > Class 10 > Mathematics

4 answers

Priyanshi Deswal 1 year, 8 months ago

1/2

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Aarti Sangwan 1 year, 8 months ago

128/25

1Thank You

Anushka Mundra 1 year, 8 months ago

128/25

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Anurag Rastogi 1 year, 8 months ago

-112/25

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The mode of the following distribution is 32.5. Find the value of x and y Class Frequency 0 - 10 x 10 - 20 5 20 - 30 9 30 - 40 12 40 - 50 y 50 - 60 3 60 - 70 2

Posted by Alona Saji 1 year, 8 months ago

CBSE > Class 10 > Mathematics

1 answers

Khushi Gupta 1 year, 8 months ago

Answer is 4

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11. If 1 2 x = is a root of the equation 5 x² + kx--=0, then the value of k is 2 4

Posted by Yuvraj Sisodiya 1 year, 8 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Root 2 value

Posted by Rishabh Pal 1 year, 8 months ago

CBSE > Class 10 > Mathematics

2 answers

Sneha Halli 1 year, 8 months ago

1.4...

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Aarti Sangwan 1 year, 8 months ago

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What is formula for Sn

Posted by Garvit Chawla 1 year, 8 months ago

CBSE > Class 10 > Mathematics

5 answers

Ayush And Anshul Sharma Sharma 1 year, 8 months ago

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1Thank You

Anmol Bansal 1 year, 8 months ago

Sn= n/2 (2a+(n-1)d) OR Sn= n/2 (a+l). ( l=last term)

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Gyan Kumar 1 year, 8 months ago

Sn = n/2(2a(n-1)d) = n/2(a+l)

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Chestha Singh Tomar 1 year, 8 months ago

Sn=n/2(a+an)

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Garvit Chawla 1 year, 8 months ago

Sn=n/2(2a+(n-1)d)

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0 + 3 Determine the height of a mountain, if the elevation of its top at an unknown distance from the base is 45 deg and at a distance 10 m further off from the this point, along the same line, the angle of elevation is 30 deg . (Take sqrt(3) = 1.73 )

Posted by Sharmistha Sarkar 1 year, 8 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Rspl question paper

Posted by Achal Rajput 1 year, 8 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

If alpha and beta are zeroes of x²+3x+2 whose zero as shown alpha+1 and beta+1 so find quadratic equations

Posted by Krish Yadav 1 year, 8 months ago

CBSE > Class 10 > Mathematics

2 answers

Wdym Bruj 1 year, 8 months ago

X²+2x+0

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Randheer Chauhan 1 year, 8 months ago

first we find the zeros of given polynomial by splitting the middle term method. =x²+2x+x+2 =x(x+2)+1(x+1) =(x+2)(x+1) x= -2 or x=-1 so alpha = -2 and Beta = -1 now alpha+1 = -2+1 = -1 beta+1 = -1+1 = 0 we know that a quadratic equation can be written in the form of x²-(sum of zeros)x+ (product of zeros)=0 so the required polynomial is x²-(-1+0)x+(-1x0)=0 x²+x=0

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ANSWER

SinA+CosA=√3 then SinA-CosA=?

Posted by Shinchan Nohara 1 year, 8 months ago

CBSE > Class 10 > Mathematics

4 answers

Anmol Bansal 1 year, 8 months ago

√-1

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Rahul Kumar Ranjan 1 year, 8 months ago

Your question is wrong, because the maximum value of sin can be only upto 1, and here according to the question, your value is √3, that is about 1.732.

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Jatin Choudhary Jatinchoudhary 1 year, 8 months ago

-√3

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Vansh Dixit 1 year, 8 months ago

1/√3

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ANSWER

Find the length and breadth to design a rectangular park of perimeter 80 m and are of 400 m2?

Posted by Mayank Gait 1 year, 8 months ago

CBSE > Class 10 > Mathematics

2 answers

Aryan Yadav 1 year, 8 months ago

L=20 B=20

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Devina Rajawat 1 year, 8 months ago

Perimeter of park = 80 2(l+b) = 80 l+b =40 ...........1 lb =400 b=400/l............2 Put eq. 2 in 1 l+400/l=40 l^2-40L+400=0 Solve by splitting the mid term

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If sinA+cosa =√3then find the value of sina - cosa

Posted by Sakshi Negi 1 year, 8 months ago

CBSE > Class 10 > Mathematics

2 answers

Prince Kumar 1 year, 8 months ago

-1

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Aadhya Tamboli 1 year, 8 months ago

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The LCM of the two number is 1200. Which of the following cannot be the HCF

Posted by Thinang Debbarma 1 year, 8 months ago

CBSE > Class 10 > Mathematics

5 answers

Sneha Halli 1 year, 8 months ago

Please send option

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Aryan Yadav 1 year, 8 months ago

9 cancer be the hcf

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Arpita Mondal 1 year, 8 months ago

The answer is 3

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Piyush Barnwal 1 year, 8 months ago

Can you please elaborate the question mean can you please give the options

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Sonu Kumar 1 year, 8 months ago

Don't post personal information, mobile numbers and other details.
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2Thank You

ANSWER

if 217x +131y =913 and 131x +217y = 827 than value of x and y

Posted by Parvesh Thalor 1 year, 8 months ago

CBSE > Class 10 > Mathematics

1 answers

Piyush Barnwal 1 year, 8 months ago

first you need to add and subtract both the equations Then convert both into simplest form Then again add and subtract the new equations you get And you got your answer Remember this tricks only work when the coefficient of the variables are simultaneously same .and sign of coefficient for a variable same

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Two tangents PA and PB are drawn from an external point P to a circle inclined to each other at an angle of 70°, then what is the value of PAB

Posted by Sakshi Mishra 1 year, 8 months ago

CBSE > Class 10 > Mathematics

1 answers

Divina S.S 1 year, 8 months ago

∠OAP = 90° ∠AOP = 180° - (90° +35° ) = 55° THATS ALL

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ANSWER

A circle touches all the four sides of quadrilateral ABCD. Prove that AB + CD = AD + DA.

Posted by Umang Soni 1 year, 8 months ago

CBSE > Class 10 > Mathematics

3 answers

Umang Soni 1 year, 8 months ago

Yes that's I what confused here by the way thanks divina

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Divina S.S 1 year, 8 months ago

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2Thank You

Sahil Kumar 1 year, 8 months ago

First you draw a quadrilateral and inside the circle and name the square A B C D sequencely after that let circle touch the quadrilateral at point P Q R S , P between AB , Q between b and c , R between c and d and s between a and d SO, AP = AS , BP = BQ , RC = CQ AND RD = DS (PROPERTY OF TANGENT )SARA EQUATION KO ADD KR DO AP + BP + RC + RD = AS + BQ + CQ + DS AB + CD = AD + BC Apne prove me galti se BC ke jagah Da likh diye h

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In an a.p if Sn=3n²+2n then the value of d is

Posted by Ngangbam Chingkhei 1 year, 8 months ago

CBSE > Class 10 > Mathematics

4 answers

Piyush Barnwal 1 year, 8 months ago

Sorry d=6

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Piyush Barnwal 1 year, 8 months ago

d=4

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Umair Hadi 1 year, 8 months ago

0Thank You

Ayush Kesharwani 1 year, 8 months ago

d=6

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If a and B are the zeroes of f(x)=x2-px+q, then prove that a2/b2

Posted by Asmath Rifaya 1 year, 8 months ago

CBSE > Class 10 > Mathematics

1 answers

Devansh Rajput 1 year, 8 months ago

f(x)= x^2-px+q a=1 b=-p C=q a+b=-b/a =-(-p)/1 =p a×b=c/a =q/1 =q

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ANSWER

3.7×2/√3

Posted by Suhani Jasmine Kerketta 1 year, 8 months ago

CBSE > Class 10 > Mathematics

1 answers

Ashish Raj 1 year, 8 months ago

4.27

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ANSWER

(a) 5/3 (b) 3/5 (c - 3/5 (d) - 5/3 3. If co * sec(theta) - cot theta = 1/2 and cosec c theta + cot theta = 2 , 0 < theta < pi/2 then cos theta is equal to

Posted by Rimjhim Raghuvanshi 1 year, 8 months ago

CBSE > Class 10 > Mathematics

1 answers

Piyush Barnwal 1 year, 8 months ago

Add and subtract both the equations you get the value of cosec and cot as cot=cos /sin and cosec =1/sin put the value of sin

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√542

Posted by Hari Shankar 1 year, 8 months ago

CBSE > Class 10 > Mathematics

1 answers

Piyush Barnwal 1 year, 8 months ago

542 is not a sq. Root no.

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Find the zeroes of polynomial x²-3

Posted by Deepika Chaudhry 1 year, 8 months ago

CBSE > Class 10 > Mathematics

5 answers

Sarthak Varshney 1 year, 8 months ago

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Lavya Sharma 1 year, 8 months ago

X^2 -3 =x^2 =-3 X= underroot -3

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Kanu Choudhary 1 year, 8 months ago

X²-3 X²-√3² (X+√3)(x-√3) X=-√3, X=√3

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Pramith Fernandes A 1 year, 8 months ago

Sorry 100%

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Pramith Fernandes A 1 year, 8 months ago

x=−√3 and x=+√3 this is the correct answer 100

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Find the zeroes of polynomial x³-3

Posted by Deepika Chaudhry 1 year, 8 months ago

CBSE > Class 10 > Mathematics

1 answers

Praharshitha Samapada Lakshmi 1 year, 8 months ago

Don't post personal information, mobile numbers and other details.
Don't use this platform for chatting, social networking and making friends. This platform is meant only for asking subject specific and study related questions.
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Find the number of zeroes

Posted by Deepika Chaudhry 1 year, 8 months ago

CBSE > Class 10 > Mathematics