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kifflom [539]
3 years ago
10

What is simplify expression (combine like terms) y/y+1 - y/y+3

Mathematics
1 answer:
Degger [83]3 years ago
5 0
    y           y
 ------- -  -------
  y+1       y + 3

LCD = (y + 1)(y + 3):-

so we have
 y(y+3 ) - y(y + 1)        y^2 + 3y - y^2 - y               2y
 ---------------------  =     -----------------------  =    -----------------    answer
     (y + 1)(y + 3              (y + 1)(y + 3)            (y + 1)(y + 3)

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HELP FAST PLEASE!!!
Alisiya [41]

Answer:

y = -0.75x + 9.5

Step-by-step explanation:

Equation of a circle is given as :

(x-a)^{2} + (y-b)^2 = r^{2} \\(x-6)^{2} + (y-5)^2 = 4^{2}\\x^{2} - 12x + 36 + y^{2} -10y + 25 = 16\\x^{2} - 12x  + y^{2} -10y + 45 = 0\\

Take the derivative of the above with respect to x

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The equation of the tangent is given by :

y - y_{1} = m(x - x_{1})\\ y - 8 = -0.75(x - 2)\\y - 8 = -0.75x + 1.5\\y = -0.75x + 9.5

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