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Solnce55 [7]
3 years ago
8

Given that AC and BD are chords, apply the Intersecting Chord Theorem to set up an equation and solve for x.

Mathematics
1 answer:
Lera25 [3.4K]3 years ago
8 0

Answer:

The value of x  = 3 units

Step-by-step explanation:

Here, AC  = 3 ,( 5x - 3)

         BD = x , (x +9)

INTERSECTING CHORD THEOREM

It states that the products of the lengths of the line segments on each chord are equal.

Applying the theorem here, we get

3( 5x - 3 )  = x  (x +9)\\\implies 3(5x) - 3(3) = x(x) + 9 (x)\\or, 15x - 9= x^2 + 9x\\\implies x^2 + 9x - 15 x + 9 = 0\\or, x^2 -6x + 9 = 0

Simplifying for the value of x , we get

x^2 -6x + 9 = 0  \implies x^2 - 3x - 3x + 9 = 0\\x(x-3) -3(x -3) =0\\or, (x-3)(x-3) = 0

or, x = 3

Hence, the value of x  = 3 units

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