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ANSWER

The graph shown in figure is of which type of polynomial

Posted by Sanjana Kumari 4 years, 8 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Find the co-ordinate of center of a circle passing through the points (6,-6) , (3,-7) & (3,3)

Posted by Manish Tiwari 4 years, 8 months ago

CBSE > Class 10 > Mathematics

1 answers

Yogita Ingle 4 years, 8 months ago

Let O (x, y) is the point of the circle

if three given points A (3,-7) B (3,3) and C (6,-6)

we know distance between circumference and center is always same. i.e radius .

now,

{tex}OA^2=OB^2=OC^2{/tex}

{tex}OA^2=OB^2{/tex}

{tex}=>(x-3)^2+(y+7)^2=(x-3)^2+(y-3)^2{/tex}

{tex}=>(x-3)^2-(x-3)^2=(y-3)^2-(y+7)^2{/tex}
{tex} => 0=(2y+4)(3){/tex}

{tex}=> y= -2{/tex}

now again ,

{tex}OB^2=OC^2{/tex}

{tex}(x-3)^2+(y-3)^2=(x-6)^2+(y+6)^2{/tex}

put y=-2

{tex}=>(x-3)^2+(-2-3)^2=(x-6)^2+(-2+6)^2{/tex}

{tex}=>(x-3)^2-(x-6)^2=16-25{/tex}

{tex}=>(2x-9)(3)=-9{/tex}

{tex}=> 2x= -3+9=6{/tex}

=> x=3

hence center co-ordinate is (3,-2)

3Thank You

ANSWER

exercise 1.1 is coming in exam ??

Posted by ?Khùšhì? * 4 years, 8 months ago

CBSE > Class 10 > Mathematics

3 answers

Malaika Sharma 4 years, 8 months ago

Euclid's Division Lemma is not a part of our syllabus.As per the 30%reduced syllabus by CBSE

Sunny Ghorriwal 4 years, 8 months ago

Sumesh ☺️☺️☺️ 4 years, 8 months ago

One day Ram went to his home town during Dussera vacation. During his excretion he noted the four places temple,tv tower,mall and school. Then he tried to locate all the place using graph shett by taking his position at origin. He marked A, B, C, and D for school,tv tower, temple and mall respectively. On the graph sheet by taking scale as 1 unit =I km as shown below: (I) find the coordinates of A, B, C and D. A(0,-1),B(8,3),C(6,7)and D(-2,3) (ii) find the distance between school and tv tower. (iii) find the distance between TV tower and mall BD=10km (iv) find the distance between school and temple. (v) name the quadrilateral ABCD so formed rectangle.

ANSWER

Posted by Spoorthi Shetty 4 years, 8 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Find the distance of the point (-3,-4) from the x-axis ( in units)

Posted by Anushka ................. 4 years, 8 months ago

CBSE > Class 10 > Mathematics

5 answers

Kunwar Dev Singh 4 years, 8 months ago

4 unit

Yogita Ingle 4 years, 8 months ago

When we are asked to calculate the distance between a point and any of the axes, we calculate the perpendicular distance between them.

Therefore, the point (-3,-4) is 3 units away from the y-axis and 4 units from the x-axis. This is because in case of either axes the co-ordinate of the other axis is zero.

Therefore the distance between the point P(-3,-4) and x-axis is 4 units.

Divanshu Rawat 4 years, 8 months ago

For x axis our point x2=-3 & y2=0 D=√[-3-(-3)]^2. + [0-(-4)]^2 =√(0)^2. + (4)^2 =√16 D=4 unit

Ansh Sharma 4 years, 8 months ago

For x axis our point x2=-3 & y2=0 D=√[-3-(-3)]^2. + [0-(-4)]^2 =√(0)^2. + (4)^2 =√16 D=4 unit

Ishan Kumar 4 years, 8 months ago

ANSWER

Solve 2x+3y=11 and 2x-4y=-24 and hence find the value of m for which y=mx+3 .

Posted by Baisa Hkm ?? 4 years, 8 months ago

CBSE > Class 10 > Mathematics

5 answers

Gourav Yadav 4 years, 8 months ago

Gourav Yadav 4 years, 8 months ago

Fbgne

Tanu Choudhary # 4 years, 8 months ago

Hi yogita thanks for your solution I have miscalculated the value of x and m

Tanu Choudhary # 4 years, 8 months ago

By using elimination method we can easily get y=5, x=1/3, m=6

Yogita Ingle 4 years, 8 months ago

Given equations are

2x+3y=11−−−−(1)

2x−4y=−24−−−−(2)

Form (1)

2x+3y=11

⇒2x=11−3y

⇒x=211−3y−−−(3)

substituting x in(2)

2x−4y=−24

⇒2(211−3y)−4y=−24

⇒11−3y−4y=−24

⇒11−7y=−24

⇒7y=35

⇒y=35/7

⇒y=5.

putting y = 5 in (3)

x=[11−3(5)]/2

⇒x=[11−15]/2

⇒x=−4/2

∴x=−2.

Hence x = -2 and y = 5 is the solution of the

equation.

Now, we have to find m

y=mx+3 ∴m=−1

5=3(−2)+3

5−3=−2m⇒−2m=2

⇒m=−2/x=−1

3Thank You

ANSWER

Prove that 2+ root 3 ÷ 5 is irrational

Posted by Saba Yasmeen Kamdod 4 years, 8 months ago

CBSE > Class 10 > Mathematics

1 answers

Sia ? 4 years, 3 months ago

Please ask question with complete information.

ANSWER

Find the cordinate of the mid point of the line segment joining the points (a,b)and (-a,-b)

Posted by Kanak Yadav 4 years, 8 months ago

CBSE > Class 10 > Mathematics

1 answers

Kunwar Dev Singh 4 years, 8 months ago

O, O

ANSWER

the next root of the ap root 7, root 28, root 63 ,........

Posted by Mehul Kedia 4 years, 8 months ago

CBSE > Class 10 > Mathematics

1 answers

Kiran Kumari 4 years, 8 months ago

A=root 7 D=root 7 Hence the next A.p is root 112

ANSWER

2ax-2by+a+4b=0 2bx+2ay+b-4a=0

Posted by Ganesh Tote 4 years, 8 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

In a test, 1 mark is awarded for each correct answer while 1/2 mark is deducted for every wrong answer.If a student answered 120 questions and got 90 marks then how many questions did he answered correctly?

Posted by Charvi Sangwan 4 years, 8 months ago

CBSE > Class 10 > Mathematics

2 answers

Divanshu Rawat 4 years, 8 months ago

Let x be the number of correct answers and y be the number of wrong answers. Since Jayanti answered 120 questions therefore, x+y=120 that is x=120−y..........(1) Also, it is given that one mark is awarded for each correct answer while 1/2 mark is deducted for every wrong answer and Jayanti got 90 marks, therefore, x−0.5y=90..........(2) Substituting the value of equation 1 in equation 2: 120−y−0.5y=90 −1.5y=−30 y=20 Therefore, x=120−20=100 Hence, she answered 100 questions correctly.

Yogita Ingle 4 years, 8 months ago

Let x be the number of correct answers and y be the number of wrong answers.

Since Jayanti answered 120 questions therefore, x+y=120 that is x=120−y..........(1)

Also, it is given that one mark is awarded for each correct answer while 1/2 mark is deducted for every wrong answer and Jayanti got 90 marks, therefore,

x−0.5y=90..........(2)

Substituting the value of equation 1 in equation 2:

120−y−0.5y=90

−1.5y=−30

y=20

Therefore,

x=120−20=100

Hence, she answered 100 questions correctly.

ANSWER

If the zeros of the polynomial f(x)= x^3-3x^2+x+1 are (a-b), a and (a+b), find a & b.

Posted by Kajal Kansal 4 years, 8 months ago

CBSE > Class 10 > Mathematics

2 answers

King?Adithya H. M.. 4 years, 8 months ago

Prakash 13:33 Hey, glad to know that you're learning from BYJU'S. For more help you may chat here. Student 13:33 If the zeros of the polynomial f(x)= x^3-3x^2+x+1 are (a-b), a and (a+b), find a & b. Read New message Prakash 13:34 Kindly allow me a minute or two to check for relevant answers to your question. Please be online. Prakash 13:35 ANSWER a−b,a,a+b are zeroes of x 3 −3x 2 +x+1 ⇒a−b+a+a+b= sum of zeroes = 3 ⇒3a=3 ⇒a=1 (a−b)(a)(a+b)= product of zeroes =−1 ⇒(1−b)(1+b)=−1 ⇒1−b 2 =−1 ⇒b 2 =2 ⇒b=± 2

Gaurav Seth 4 years, 8 months ago

sum of the zeroes = (a-b) + (a+b) + a = 3a i.e. 3a = - b/a

or 3a=3

or a=1

product of the zeroes = (a-b)*(a+b)*a= a³-ab² i.e. 1 - b² = c/a (by putting the value a=1)

or b² =2

or b = +-root2

ANSWER

Find the quadratic polynomial whose the zeroes are -2√3 and √3÷2

Posted by Hilal . 4 years, 8 months ago

CBSE > Class 10 > Mathematics

2 answers

Divanshu Rawat 4 years, 8 months ago

2.59807621135

King?Adithya H. M.. 4 years, 8 months ago

-2.59807621135

ANSWER

Exercise 5.3 cut ho gyi h kya

Posted by Misty Chan 4 years, 8 months ago

CBSE > Class 10 > Mathematics

5 answers

Misty Chan 4 years, 8 months ago

Thank you all!!!

Sunny Ghorriwal 4 years, 8 months ago

Nhi question 15 to 20 delete ho gay

Ff_Girl Tannu 4 years, 8 months ago

Yup Q 15 to Q 20 is deleted from arithmetic

Gaurav Seth 4 years, 8 months ago

CBSE Class 10 Mathematics (041) - Deleted portion:

UNIT I-NUMBER SYSTEMS
Chapter	Topics
REAL NUMBERS	Euclid’s division lemma
UNIT II-ALGEBRA
Chapter	Topics
POLYNOMIALS	Statement and simple problems on division algorithm for polynomials with real coefficients.
PAIR OF LINEAR EQUATIONS IN TWO VARIABLES	cross multiplication method
QUADRATIC EQUATIONS	Situational problems based on equations reducible to quadratic equations
ARITHMETIC PROGRESSIONS	Application in solving daily life problems based on sum to n terms
UNIT III-COORDINATE GEOMETRY
Chapter	Topics
COORDINATE GEOMETRY	Area of a triangle
UNIT IV-GEOMETRY
Chapter	Topics
TRIANGLES	Proof of the following theorems are deleted · The ratio of the areas of two similar triangles is equal to the ratio of the squares of their corresponding sides. · In a triangle, if the square on one side is equal to sumof the squares on the other two sides, the angle opposite to the first side is a right angle.
CIRCLES	No Deletion
CONSTRUCTIONS	Construction of a triangle similar to a given triangle.
UNIT V- TRIGONOMETRY
Chapter	Topics
INTRODUCTION TO TRIGONOMETRY	Motivate the ratios whichever are defined at 0^o and 90^o
TRIGONOMETRIC IDENTITIES	Trigonometric ratios of complementary angles
HEIGHTS AND DISTANCES	No deletion
UNIT VI-MENSURATION
AREAS RELATED TO CIRCLES	Problems on central angle of 120°
SURFACE AREAS AND VOLUMES	Frustum of a cone
UNIT VI-STATISTICS & PROBABILITY
Chapter	Topics
STATISTICS	· Step deviation Method for finding the mean · Cumulative Frequency graph
PROBABILITY	No deletion

Misty Chan 4 years, 8 months ago

Pls answer

ANSWER

1) find the zeores of the polynomial 4x²-9 graphically

Posted by Sumit Rathi 4 years, 8 months ago

CBSE > Class 10 > Mathematics

1 answers

Yogita Ingle 4 years, 8 months ago

=> 4x²- 9 = 0
=> 4x² = 9
=> x² = 9/4
=> x = ± ⅔

ANSWER

what sre case study question in mathematics class 10 of chapter polynomials,triangle,coordinate geometry,statistics

Posted by Arati Punajiche 4 years, 8 months ago

CBSE > Class 10 > Mathematics

2 answers

Mayank Singhal 4 years, 8 months ago

So be focus on the base of your study of maths. Case study is based on that .

Mayank Singhal 4 years, 8 months ago

A lot of questions they ask from you but based on the basic material which you had studied ...

ANSWER

Prove that 3+2root5 is irrational

Posted by Logeshwari Lokeshwari.D 4 years, 8 months ago

CBSE > Class 10 > Mathematics

2 answers

Yogita Ingle 4 years, 8 months ago

Letus assume that 3 + 2√5 is a rational number.

Soit can be written in the form a/b
3 + 2√5 = a/b
Here a and b are coprime numbers and b ≠ 0
Solving3 + 2√5 = a/b we get,
=>2√5 = a/b – 3
=>2√5 = (a-3b)/b
=>√5 = (a-3b)/2b
This shows (a-3b)/2b is a rational number. But we know that But √5 is an irrational number.

so it contradictsour assumption.

Our assumption of3 + 2√5 is a rational number is incorrect.
3 + 2√5 is an irrational number

Hence proved

Logeshwari Lokeshwari.D 4 years, 8 months ago

Our Assumation is wrong, it's irrational numbers.

ANSWER

Prove sum of A triangle =180

Posted by Pratyush Yadav 4 years, 8 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

What are the aspects of modem

Posted by Tanu Choudhary # 4 years, 8 months ago

CBSE > Class 10 > Mathematics

2 answers

Tanu Choudhary # 4 years, 8 months ago

Yogita Ingle thanku for typing so much but the fact is that I wanted to ask about the development which you have already answered but in my mind there is modem so I miss intendedly typed modem

Yogita Ingle 4 years, 8 months ago

A modem is a hardware device which means modulator-demodulator.

modems are used to transfer data from one computer network to another computer network through telephone lines.

the computer network works in digital mode, while analog technology is used for carrying messages across phone lines.

the modulator converts information from digital mode to analog mode at the transmitting end and demodulator converts the same from analog to digital at receiving end.

ANSWER

What is the value of tita

Posted by Krishna Verma 4 years, 8 months ago

CBSE > Class 10 > Mathematics

4 answers

Ujjawal Mittal 4 years, 8 months ago

Thetha is an assuming symbol like x alphbet it has not its own value

Mayank Singhal 4 years, 8 months ago

Value of tita is depend upon the given numerical ..

Tanu Choudhary # 4 years, 8 months ago

He is asking about tita not tan tita

Addology Master 4 years, 8 months ago

Value of tita is perpendicular upon base

ANSWER

Send 25 degree cos 65 degree + cos 25 February science 35 degree

Posted by Krishna Verma 4 years, 8 months ago

CBSE > Class 10 > Mathematics

1 answers

Tanu Choudhary # 4 years, 8 months ago

What is this? You can ° rather than writing degree

ANSWER

How to find the number of zeroes in a polynomial ( graph )

Posted by Vaishnavi. B Bolisetty 4 years, 8 months ago

CBSE > Class 10 > Mathematics

2 answers

Mayank Singhal 4 years, 8 months ago

No. of zeroes is equal to the no. of points cut at x . axis .

Tanu Choudhary # 4 years, 8 months ago

Just see how many times does the line intersects with x axis

ANSWER

sin (90-A)=

Posted by Baisa Hkm ?? 4 years, 8 months ago

CBSE > Class 10 > Mathematics

3 answers

Kajal Kansal 4 years, 8 months ago

Cos A

Mayank Singhal 4 years, 8 months ago

cos A because cos A and sinA are complementary angles of each other .

Zeeshan Ali 4 years, 8 months ago

COS A

ANSWER

, sin theta + cos theta the whole square equal to 1 + 2 Sin Theta into cos theta

Posted by Fathima Fathima 4 years, 8 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Collinear points means

Posted by Himanshu Yadav 4 years, 8 months ago

CBSE > Class 10 > Mathematics

3 answers

Mayank Singhal 4 years, 8 months ago

Collinear means they all are lie in the same line means in the straight lines .

Niral Dharawat 4 years, 8 months ago

Points that follow, to form a straight line are collinear points. Their relation is like:- AB+BC=AC Any 2 parts of the line together make a straight line.

Zeeshan Ali 4 years, 8 months ago

A point that lies on another point