4. Which of the following indicates the multiplication property of equality when solving Vz= 5?
O A.Y2 = 2(5)
O B.2V) = 5
O C.212) = 2(5)
O D.V2 = 5/2

Respuesta :

Answer:

D. 21.

Step-by-step explanation:

The general form of the equation of a circle is:

(x - a)^2 + (y - b)^2 = r^2  where r is the radius.

Comparing:

(x + 5)^2 + (y + 7)^2 = 21^2

So r^2 = 21^2

making r = √21^2

= 21.

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