Try shutting of things that could distract you. (Television, phone, computer etc.)
Get away from noise; go somewhere quiet.
Answer:
Circle's area = 28,26 km
Formula = π r²
Step-by-step explanation:

Answer:
Hi there!
The answer to this question is: x=6
Step-by-step explanation:
All the points are being mirrored across the line x=6.
Function 1
Domain- all real numbers
Root: (3,0)
Range: all real numbers
Vertical intercept: (0,6)
Function 2
Root: (8,0)
Range: all real numbers
Vertical intercept: (0,6)
Domain: all real numbers
Solution:(4,-2)
(X,y)
A tangent (here WZ in the question) to any circle (here O in the question) is a line segment that touches the circle at only one point (here B in the question) on circumference of circle, and the radius of the circle (here OB in the question) through this point is always perpendicular to that particular tangent.
In other words, Tangent (WZ) and Radius (OB) of any circle (O) always make a Right angle at point of intersection (B) on its circumference.
It means angle ∠OBZ would be a Right angle i.e. 90 degrees.
So, option B i.e. 90 degrees is the final answer.