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  • 2 answers

Yogita Ingle 5 years, 10 months ago

Relative Density

  • The relative density of a substance is the ratio of its density to that of water.
  • Relative density is a ratio so it has no unit.
    Density = mass/volume
    Relative density = density of substance/density of water

 

Hifazat Ali 5 years, 10 months ago

relative density is the ratio of the density of object with the density of water that is 1 g/cm^3
  • 1 answers

Yogita Ingle 5 years, 10 months ago

Statement : There is one and only one circle passing through three given noncollinear points.

Given : AB and CD are two equal chords of the circle.

OM and ON are perpendiculars from the centre at the chords AB and CD.

To prove : OM = ON.
Construction : Join OA and OC.

Proof :

In ΔAOM and ΔCON,

OA = OC . (radii of the same circle)
MA = CN . (since OM and ON are perpendicular to the chords and it bisects the chord and AM = MB, CN = ND)

∠OMA = ∠ONC = 90°
ΔAOM ≅ ΔCON (R. H. S)
OM = ON (c. p. c. t.)

Equal chords of a circle are equidistant from the centre.

  • 3 answers

Owaiz Ryan Gobre 4 years, 11 months ago

4

Lakshminarayana Lucky 5 years, 9 months ago

4√2

Roshni Gupta 5 years, 10 months ago

4√2
  • 1 answers

Lakshminarayana Lucky 5 years, 9 months ago

4√2
  • 1 answers

Nandan S 5 years, 9 months ago

B
  • 2 answers

Atish Lather 4 years, 5 months ago

All carbon compound which exist in biosphere

Amit Gupta 5 years, 10 months ago

Vvvv
  • 0 answers
  • 1 answers

Hifazat Ali 5 years, 10 months ago

because it has no atmosphere as the earth has and it does not consist carbon dioxide that can trap the sun's light and keep the temperature constant .
  • 0 answers
  • 2 answers

Abu Hamza 4 years, 8 months ago

7246.8=7000.00+200.00+40.00+ 6.00+.80. OR 7246.8=7000+200+40+6+8/10.

Yogita Ingle 5 years, 10 months ago

7246.8 = 7000 + 200 + 40 + 6 + 8/10

= 7 × 103 + 2 ×  102 + 4 ×  101 + 6 ×  100 + 8 ×  10-1

  • 1 answers

Lakshminarayana Lucky 5 years, 9 months ago

No,it doesn't satisfy the given equation If u substitute x=1/2, f(1/2) =0... Then 6(1/4)-1(1/4)-5(1/2)+2 (5/4)-(5/2)+(2) L.c.m is 4 (5-10+8)/4 (-5+8)/4 3/4 is the answer So 2x-1 is not satisfying the equation It is not a factor
  • 1 answers

Nandan S 5 years, 9 months ago

When the body temperature decreases due to low temperature in surrounding
  • 1 answers

Yogita Ingle 5 years, 10 months ago

The base equation for a circle centered at (h,k) with radius r is:

   (x - h)2+ (y - k)2 = r2

If the points are concyclic, they all lie on the graph for the same circle.

Thus, all points are solutions to a single equation of the circle

WE can plug each point into the base equation, and obtain a system of equationd

FOR POINT (-2,10)

     Equation 1:  (-2 - h)2 + (10 - k)2 = r2

FOR POINT (1,11)

     Equation 2:  (1 - h)2+ (11 - k)2 = r2

FOR POINT (6,10)

     Equation 3:  (6 - h)2 + (10 - k)2 = r2

FOR POINT (9,7)

     Equation 4:  (9 - h)2 + (7 - k)2 = r2


From Equation 1 and 2 above, since they have 2 different expressions equivalent to r2, we can construct an equation involving variables x and h.

     r2 = r2   

     (-2 - h)2 + (10 - k)2 = (1 - h)2 + (11 - k)2

     (-2 - h)(-2 - h) + (10 - k)(10 - k) = (1 - h)(1 - h) + (11 - k)(11 - k)

     (4 + 2h + 2h + h2) + (100 -10k - 10k + k2) = (1 - h - h + h2) + (121 - 11k - 11k + k2)

      h2 + 4h + 4 + k2 - 20k + 100 = h2-2h + 1 + k2 -22k + 121

    We can subtract h and k from both sides.

      4h + 4 - 20k + 100 = -2h + 1 -22k + 122

      4h -20k + 104 = -2h - 22k + 122

    Move all h and k variables to the left ... move all constants to the right

      6H + 2K = 18

SYSTEM EQUATION 1:   6h + 2k = 18      

From equation 3 and 4 above, we go through the same process to obtain a second system equation.

       r2 = r2

       (6 - h)2 + (10 - k)2 = (9 - h)2 + (7 - k)2

       (6 - h)(6 - h) + (10 - k)(10 - k) = (9 - h)(9 - h) + (7 - k)(7 - k)

       36 - 6h - 6h + h2+ 100 - 10k - 10k + k2 = 81 - 9h - 9h + h2 + 49 = 7k - 7k + k2

       h2 - 12h + 36 + k2 - 20k + 100 = h2 - 18h + 81 + k2- 14k + 49

    Simplify, and subtract h2 and k2from both sides

       -12h - 20k + 136 = -18h - 14k + 130

      Move the h and k variables to the left, and the constants to the right

        -12h + 18h - 20k + 14k = 130 - 136

        6h - 6k = -6

SYSTEM EQUATION 1:  6h - 6k = -6

      6h +2k = 18

      6h - 6k = -6

Multiply the second equation by -1, we have ... -6h + 6k = 6

Adding the 2 equations, we have

 6h + 2k = 18

  -6h + 6k =  6

          8k =24

             k = 3

Using substitution of k=3 into equation 6h + 2k = 18,
   
6h + 2(3) = 18

    6h + 6 = 18

    6h = 12

    h = 2

Now, use one of the points on the circle ... (1, 11) and (h,k) ... (2,3), to find the radius

   (1 - 2)2 + (11 - 3)2 = r2

   1 + 64 = r2

   65 = r2

   r = √65
Thus the equation of our circle is:
   (x - 2)2 + (y - 3)2 = (√65)2

 

  • 1 answers

Mr Indian Kashyap 5 years, 9 months ago

X cccccccccxxxx
  • 1 answers

Yogita Ingle 5 years, 10 months ago

Book keeping is stated as the recording of day-to-day business transactions in the books of accounts. It involves identification of transactions of financial nature, recording them in the books of accounts and classifying them into the ledger accounts.

  • 0 answers
  • 3 answers

Abu Hamza 4 years, 8 months ago

Tesla

Sandeep Kumar 5 years, 10 months ago

Tesla

Yogita Ingle 5 years, 10 months ago

SI unit of magnetic field is tesla (T). So, one tesla is that magnetic field in which a charge of one coulomb moving with a velocity of 1 m/s perpendicular to the magnetic field experiences a force of one newton.

  • 4 answers

Snehal Kumar 5 years, 5 months ago

The vertical columns in a periodic table are called as groups

Sonu Kumar 5 years, 7 months ago

Why we have not included the lanthanide series in modern period ic table?

Sandeep Kumar 5 years, 10 months ago

Vertical columb of a modern periodic table is known as group.

Yogita Ingle 5 years, 10 months ago

Functional group:
An atom or a group of atoms present in the molecules, which determines the characteristics property of the organic compounds, is called the functional group

  • 1 answers

Yogita Ingle 5 years, 10 months ago

Lens is an optical device which converges or diverges the rays of light before transmitting. A lens has similar shape to lentils and genus of lentil is called Lens, thus a lens got its name after the shape and name of genus of lentils. A lens is made by combining at least one part of sphere made of transparent material, generally glass.

  • 1 answers

Durga Prasad 5 years, 8 months ago

Vowel sounds and consonant sounds.
  • 1 answers

Ayan Sahil 5 years, 6 months ago

In simple words it is a process of identifying, anticipatingAnd satisfying consumers needs and wants.
  • 0 answers

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