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  • 2 answers
Find six rational numbers between 3and 4

Yogita Ingle 3 years, 9 months ago

Given , surface area of sphere = 784π

we know that , surface area of sphere = 4πr²

so , 4πr²= 784π

4r²=784

r²=196

r= √196

r = radius = 14 units

  • 3 answers

Arya Ji 3 years, 9 months ago

cbsce Hindi medium papers

Anushka Chaudhary 3 years, 9 months ago

Yes zero is a rational number we write it p/q form

Yogita Ingle 3 years, 9 months ago

We know that, rational number is a number which can be written in the form of p/q ​, where q is not equal to zero.

<div>Thus, yes, zero is a rational number, as it can be written in the form of p/q​. <div> </div> <div>Since, 0 (zero) is an integer thus, zero can be written in the form of  p​/q</div> <div> </div> <div>Example :  0/1​, 0/2​, 0/3​, etc. where 0 (zero) is an integer..</div> </div>
  • 3 answers

Anushka Chaudhary 3 years, 9 months ago

SAS mean side angle side triangle if any two side and an angle of 2 triangle we can prove both triangle are congruent

Abhinya Sharma 3 years, 9 months ago

Side angle side of triangle if any 2 sides and an angle of 2 triangles are same then we can use this congruency rule to prove the trianhles congruent

Kripa Daga 3 years, 9 months ago

Side angle side rule If a triangle have two sides and included angle same the triangle is said to be congruent by SAS rule
  • 2 answers

Kripa Daga 3 years, 9 months ago

2

Kritika Yadav 3 years, 9 months ago

What we have to find in this question.......It's looking like division but in 9th you'll not ask for dividing these terms.......Please post complete question........If need division that your answer is 2.
  • 2 answers

Tanisha Kashyap 3 years, 9 months ago

50%

Gaurav Seth 3 years, 9 months ago

Answer:

The surface area increased by 125%.

Step-by-step explanation:

Let the initial side length be x. Then the surface area of cube is

If each side of a cube is increased by 50%, then the new side length is

The surface area of new cube is

The percentage increase in its surface area is

Therefore the surface area increased by 125%.

  • 1 answers

Kritika Yadav 3 years, 9 months ago

If you'll post questions then it will a easy to answer your questions
  • 1 answers

Gaurav Seth 3 years, 10 months ago

Let us consider that 2 distinct circles intersect at more than 2 points.

∴These points are non-collinear points.

As 3 non-collinear points determine one and only one circle

∴There should be only one circle.
(i.e. those circles are supposed to superimpose each other)
But, the superimposition of 2 circles of different radii is impossible, i.e. concentric circles would be derived instead.

This contradicts our assumption. Therefore, our assumption is wrong.

Hence, 2 circles cannot intersect each other at more than 2 points.

  • 1 answers

Muskan Singh 3 years, 10 months ago

Buyf, ggsvbj jnftujm
  • 2 answers

Vipul Giri Giri 3 years, 9 months ago

Gooooooooooood

Tamanna Pant 3 years, 10 months ago

What????
  • 3 answers

Gangana Pandey 3 years, 10 months ago

1.41 and 1.73

Tamanna Pant 3 years, 10 months ago

rational number between . Solution, Numbers that can be expressed in the form of  where p and q are integers and q is not equal to 0 are called rational numbers. We know that,  and  We need to find a rational number between  it means that we need to find a number between 1.41 and 1.73. So, it is very clear that a number between 1.41 and 1.73 is 1.5. So, a rational number between 

Gaurav Seth 3 years, 10 months ago

Given that,

Two numbers, .

To find,

A rational number between .

Solution,

Numbers that can be expressed in the form of  where p and q are integers and q is not equal to 0 are called rational numbers.

We know that,  and 

We need to find a rational number between  it means that we need to find a number between 1.41 and 1.73.

So, it is very clear that a number between 1.41 and 1.73 is 1.5.

So, a rational number between  is 1.5.

  • 5 answers

Mohammad Maaz Ghaffar. 3 years, 10 months ago

√s(s-a)(s-b)(s-c)

Ashish Gunapache 3 years, 10 months ago

Whole √s(s-a)(s-b)(s-c)

Ankit Raj 3 years, 10 months ago

✓s(s-a)(s-b)(s-c)

Adarsh Dubey 3 years, 10 months ago

Thanks

Bubbly Cs 3 years, 10 months ago

√S(S-a)(S-b)(s-c)
  • 3 answers

Kripa Daga 3 years, 10 months ago

60 cm

Abhoyjit Dutta 3 years, 10 months ago

Yess it is right

Gaurav Seth 3 years, 10 months ago

Let coefficient of ratios be X
a = 3x
b = 4x
c = 5x

Using Heron's Formula,
s = (3+4+5)x/2 = 12x/2 = 6x



Now,
a = 5*3 = 15 cm
b = 5*4 = 20 cm
c = 5*5 = 25 cm

Perimeter = 15+20+25 = 60 cm
 

  • 5 answers

Anushka Chaudhary 3 years, 9 months ago

180 degree

Khushi Choudhary 3 years, 10 months ago

180°

Karmu Kumbhakar 3 years, 10 months ago

180 degree

Ankit Raj 3 years, 10 months ago

Retardation

Rupali Sahu 3 years, 10 months ago

180°
  • 4 answers

Rupali Sahu 3 years, 10 months ago

Let angle= x Complement of angle= 90-x Supplement of angle= 180-x 7(90°-x)=3(180°-x)-10 4x=100 X=25°....... answer

Yogita Ingle 3 years, 10 months ago

Let the measure of the required angle be x°.
Then, the measure of its complement =(90−x)°.
And the measure of its supplement=(180−x)°.
Therefore,
7(90−x)=3(180−x)−10
⇒630−7x=540−3x−10
⇒4x=100
⇒x=25
Hence, the measure of the required angle is 25°.

Shubham Mishra 3 years, 10 months ago

If the answer is right say yes I will send you solution.

Shubham Mishra 3 years, 10 months ago

100degrees
  • 5 answers

Ankit Raj 3 years, 10 months ago

0

Vaaruni Singh Ix-C 3 years, 10 months ago

Degree of zero is not defined

Ganga Sagar 3 years, 10 months ago

0

Hãrjåß Käûr 3 years, 10 months ago

It's "not define"

Yogita Ingle 3 years, 10 months ago

The polynomial 0 has no terms at all, and is called a zero polynomial. Because the zero polynomial has no non-zero terms, the polynomial has no degree.

  • 2 answers

Rajit Yadav 3 years, 10 months ago

Y

Yogita Ingle 3 years, 10 months ago

For an isosceles right angled triangle each having equal side 'a'

Using Pythagoras theorem,

AC2 = AB2 + BC2 where AB = BC = a

AC2 = a2 + a2 

AC2 = 2a2 

AC = √2a

Semi perimeter of a triangle ABC = (a + a + √2a)/2 = (√2+1)a/√2

  • 2 answers

Ankit Raj 3 years, 10 months ago

This is not in Class 9... SinA+sin3A+sin5A+sin7A÷ cosA+cos3+cos5A+cos7A=cot x (SinA+sin7A)+(sin3A+sin5A)÷(cosA+cos7A)+(cos3A+cos5A) = 2sin4A(cos3A+cosA)÷2cos4A(cos3A+cosA) = Sin4A÷cos4A =Cot4A=tanx ....so answer is x=4A

Rupali Sahu 3 years, 10 months ago

SinA+sin3A+sin5A+sin7A÷ cosA+cos3+cos5A+cos7A=cot x (SinA+sin7A)+(sin3A+sin5A)÷(cosA+cos7A)+(cos3A+cos5A) = 2sin4A(cos3A+cosA)÷2cos4A(cos3A+cosA) = Sin4A÷cos4A =Cot4A=tanx ....so answer is x=4A
  • 1 answers

Rupali Sahu 3 years, 10 months ago

Yeah kyasa question hai?
  • 1 answers

Kripa Daga 3 years, 10 months ago

88
  • 3 answers

Ganga Sagar 3 years, 10 months ago

a3 +b3 +3ab(a+b)

Rajesh Shah 3 years, 10 months ago

(a+b)= a³+b³ + 3ab(a+b)

Gaurav Seth 3 years, 10 months ago

a n s w e r
(a+b)^3 = a^3 + b^3 +3a b^2 + 3ba^2 as shown below:

(a+b)^3 = (a+b) (a+b)^2 = (a+b)(a^2 + 2ab + b^2)

=a^3 +2a^2 b + ab^2 + ba^2 +2ab^2 + b^3

= a^3 + 3a b^2 + 3 b a^2 + b^3 and I it is often written as

a^3 + 3ab(a+b) + b^3

  • 3 answers

Sanjay Kumar 3 years, 10 months ago

Volume is 512 cm3

Yogita Ingle 3 years, 10 months ago

Surface area of cube is given by the formula 6a²
   So 6a² = 384
          a²  = 384/6 = 64
          a   = √64 = 8
The formula to find the volmue of cube is a³
       So we know that a = 8
                                  8³ = 512m³
The volume is 512m³

Maahir Khurana 3 years, 10 months ago

Surface area of cube = 6 {a}^{2}6a2 here 6a^2 = 384 a^2 = 384/ 6 a^2 = 64 a = 8 Now Volume of cube Volume of cube = {a}^{3}a3 Volume of cube = 8^3 = 512 cm^3
  • 0 answers
  • 4 answers

Ganga Sagar 3 years, 10 months ago

4 hours 50 minutes

Farhan Akhtar 3 years, 10 months ago

4h 50 min

Sanjay Kumar 3 years, 10 months ago

4.833333333333333 hours

Yogita Ingle 3 years, 10 months ago

60 min = 1 hour

290 min = 4 hour 50 min

  • 4 answers

Farhan Akhtar 3 years, 10 months ago

(x+2)(3x-2)

Sanjay Kumar 3 years, 10 months ago

(x+1)(3x-2)

Yogita Ingle 3 years, 10 months ago

3x²+x-2

= 3x²+3x- 2x -2

= 3x(3 x + 2) - 2 ( x + 2)

= (3x - 2) ( x + 2)

Kaarunya Sai 3 years, 10 months ago

3x^2+x-2 3x^2-3x-2-2 3x^2+3x-2x-2 3x(x+1)-2(x+1) =(3x-2)(x+1)

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