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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 2 years ago

CBSE > Class 10 > Mathematics

1 answers

Gourav Sharma 2 years 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 2 years ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

How to solve 8.1

Posted by Harshita Pandey 2 years 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 2 years ago

CBSE > Class 10 > Mathematics

0 answers

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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 2 years ago

CBSE > Class 10 > Mathematics

2 answers

Harshita Pandey 2 years ago

8.1

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Sanvidha Ghule 2 years ago

20.3

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

Posted by Krittika 💜💜 Patil 2 years ago

CBSE > Class 10 > Mathematics

4 answers

Priyanshi Deswal 2 years ago

1/2

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Aarti Sangwan 2 years ago

128/25

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Anushka Mundra 2 years ago

128/25

3Thank You

Anurag Rastogi 2 years 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 2 years ago

CBSE > Class 10 > Mathematics

1 answers

Khushi Gupta 2 years 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 2 years ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Root 2 value

Posted by Rishabh Pal 2 years ago

CBSE > Class 10 > Mathematics

2 answers

Sneha Halli 2 years ago

1.4...

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Aarti Sangwan 2 years ago

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What is formula for Sn

Posted by Garvit Chawla 2 years ago

CBSE > Class 10 > Mathematics

5 answers

Ayush And Anshul Sharma Sharma 2 years ago

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Anmol Bansal 2 years ago

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

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Gyan Kumar 2 years ago

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

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Chestha Singh Tomar 2 years ago

Sn=n/2(a+an)

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Garvit Chawla 2 years 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 2 years ago

CBSE > Class 10 > Mathematics

0 answers

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Rspl question paper

Posted by Achal Rajput 2 years ago

CBSE > Class 10 > Mathematics

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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 2 years ago

CBSE > Class 10 > Mathematics

2 answers

Wdym Bruj 2 years ago

X²+2x+0

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Randheer Chauhan 2 years 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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SinA+CosA=√3 then SinA-CosA=?

Posted by Shinchan Nohara 2 years ago

CBSE > Class 10 > Mathematics

4 answers

Anmol Bansal 2 years ago

√-1

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Rahul Kumar Ranjan 2 years 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 2 years ago

-√3

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Vansh Dixit 2 years ago

1/√3

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

Posted by Mayank Gait 2 years ago

CBSE > Class 10 > Mathematics

2 answers

Aryan Yadav 2 years ago

L=20 B=20

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Devina Rajawat 2 years 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 2 years ago

CBSE > Class 10 > Mathematics

2 answers

Prince Kumar 2 years ago

-1

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Aadhya Tamboli 2 years 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 2 years ago

CBSE > Class 10 > Mathematics

5 answers

Sneha Halli 2 years ago

Please send option

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Aryan Yadav 2 years ago

9 cancer be the hcf

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Arpita Mondal 2 years ago

The answer is 3

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Piyush Barnwal 2 years ago

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

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Sonu Kumar 2 years ago

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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 2 years ago

CBSE > Class 10 > Mathematics

1 answers

Piyush Barnwal 2 years 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 2 years ago

CBSE > Class 10 > Mathematics

1 answers

Divina S.S 2 years ago

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

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

Posted by Umang Soni 2 years ago

CBSE > Class 10 > Mathematics

3 answers

Umang Soni 2 years ago

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

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Divina S.S 2 years ago

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2Thank You

Sahil Kumar 2 years 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 2 years ago

CBSE > Class 10 > Mathematics

4 answers

Piyush Barnwal 2 years ago

Sorry d=6

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Piyush Barnwal 2 years ago

d=4

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Umair Hadi 2 years ago

0Thank You

Ayush Kesharwani 2 years 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 2 years ago

CBSE > Class 10 > Mathematics

1 answers

Devansh Rajput 2 years 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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3.7×2/√3

Posted by Suhani Jasmine Kerketta 2 years ago

CBSE > Class 10 > Mathematics

1 answers

Ashish Raj 2 years ago

4.27

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(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 2 years ago

CBSE > Class 10 > Mathematics

1 answers

Piyush Barnwal 2 years 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 2 years ago

CBSE > Class 10 > Mathematics

1 answers

Piyush Barnwal 2 years ago

542 is not a sq. Root no.

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Find the zeroes of polynomial x²-3

Posted by Deepika Chaudhry 2 years ago

CBSE > Class 10 > Mathematics

5 answers

Sarthak Varshney 2 years ago

0Thank You

Lavya Sharma 2 years ago

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

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Kanu Choudhary 2 years ago

X²-3 X²-√3² (X+√3)(x-√3) X=-√3, X=√3

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Pramith Fernandes A 2 years ago

Sorry 100%

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Pramith Fernandes A 2 years 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 2 years ago

CBSE > Class 10 > Mathematics

1 answers

Praharshitha Samapada Lakshmi 2 years ago

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Find the number of zeroes

Posted by Deepika Chaudhry 2 years ago

CBSE > Class 10 > Mathematics