X= 5 x= -9 y = -10 if this not the answer reverse it
Answer:
XY is a tangent
Step-by-step explanation:
Given



Required
Is XY a tangent?
XY is a tangent if:

Because XY should make a right angle at point X with the circle
Where

So, we have:




This gives:



<em>Yes, XY is a tangent</em>
Step-by-step explanation:

Answer:
36
Step-by-step explanation:
Here, f(x) is the input to g(x), forming a composite function.
To evaluate (gºf)(5),
1) find the value of f(5). It is f(5) = 6.
2) Use this result as the input to g(x): g(6) = (6)^2 = 36