Calcul

|z-8| shows that the absolute value (distance from zero) equals 4. So to find z, you can use these two equations. To validate your answer, it must be greater than zero (because absolute values are always greater than zero).
z=4 and 12.
z=|-8+4|
z=8+4

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14 + 63 = 2*7 + 9*7 = 7*(2+9)

XMK x 356 is the correct answer

Since PQ is tangent to the circle, angle PQO is 90°.

Since the sum of angles of any triangle must be 180° we can say:

180-90-12=x  thus:

x=78°

Answer:

B. (-7,-3)

Step-by-step explanation:

Given the circle:

The point (x,y) which lie on the circle are the coordinate which satisfies the given equation of the circle.

We now consider the given options.

<u>Option A (5,12)</u>

When x=5, y=12

<u>Option B (-7,-3)</u>

When x=-7, y=-3

<u>Option C (-6,-10)</u>

When x=-6, y=-10

<u>Option D (6,23)</u>

When x=6, y=23

We can see that only (-7,-3) satisfies the equation of the circle. Thus it is the point which lies on the circle.

The correct option is B.