3 years ago

How many points are shared in concentric circles

1 answer:

7 0

0 points. <span>Concentric means they all share the same center point. circles within circles. none ever touches another.</span>

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Bond [772]

Answer:

$x^2-\dfrac{9}{2}x-9=0$

Step-by-step explanation:

The solutions of a quadratic equation are :

x = -3/2 and x = 6

or we can write it as :

$x+\dfrac{3}{2}=0\ and\ x-6=0\\\\(x+\dfrac{3}{2})(x-6)=0$

Multiplying both values,

$(x+\dfrac{3}{2})(x-6)=0\\\\x^2-6x+\dfrac{3}{2}x-9=0\\\\x^2-\dfrac{9}{2}x-9=0$

Hence, the required quadratic equation is $x^2-\dfrac{9}{2}x-9=0$ .

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OLEGan [10]

Answer is option(B.) Altitude
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