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arsen [322]
4 years ago
10

1/x+1/x-3=x-2/x-3 X=

Mathematics
1 answer:
DochEvi [55]4 years ago
3 0
It would be best if you were to enclose each denominator inside parentheses.  Otherwise I have to take an educated guess regarding what you meant:

                                      1        1               x - 2
<span>1/x+1/x-3=x-2/x-3  =>  ----- + ------ =     ----------
                                       x       x-3            x - 3

The LCD here is x(x-3).

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

Then x-3+x=x^2 -3x,         or           2x-3=x^2-3x        or     x^2 - 5x - 3 = 0


Using the quadratic formula to solve for x:

        5 plus or minus sqrt(25-4(1)(-3)
x = --------------------------------------------
                             2

          5 plus or minus sqrt( 25 + 12)
   = --------------------------------------------
                             2

There are 2 solutions.  Complete the arithmetic to find them.
  Be sure to check both answers via subst. into the original equation.
</span>
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The diagram shows a circular pond, of radius r metres, surrounded by a circular path.The circular path has a constant width of 1
Alenkasestr [34]

The formula for calculating the area of a circle is expressed as;

A = πr²

  • Area of the pond = πr²
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Since the  area of the path is equal to the area of the pond, hence;

π(r+1.5)² - πr² = πr²

Add πr² to both sides

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π(r+1.5)² = 2πr²

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Expand the parenthesis

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<em>This proves the required equation</em>

<em />

Learn more on area of composite figures here: brainly.com/question/15981553

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