Answer:

Step-by-step explanation:
think of this triangle being made up of 2 triangles with the lengths of 5, 4, and x.
x being the hypotenuse, 5 being one of the legs, and 4 being one of the legs. (8/2).
pythagorean theorem:
a^2 + b^2 = c^2
5^2 + 4^2 = x^2
25 + 16 = x^2
41 = x^2
x = sqrt 41
Answer:
Factor x^2−8x−48 using the AC method.
(x−2) (x+4)
Answer:
Very first one, A
Step-by-step explanation:
24.
This is because the equation you have presented is that of a circle, formulated like so:
x^2 + y^2 = r^2 or radius squared
With that information, you know the find the square of the presented radius which is 12 and the actual radius.
The radius is half of the diameter, which makes the diameter 12 x 2 or 24.
Hope this helps!