Answer:
B) Rotation
Step-by-step explanation:
Answer:
the answer is 45 . so circle 4
We can solve this using substitution.
because x-y=2.5
x=y+2.5
Now substitute x into other equation.
2(y+2.5)^2-2y=125
2y^2+10y+12.5-2y=125
2y^2+8y-112.5=0
Now comes the ugly part
y=-4+-sqrt(16+900)
y=-4+-sqrt916
y=-4+-2sqrt229
x=-1.5+-2sqrt229
Draw the diameter from point (-1, -5) to point (2, 3).
The triangle has base 3 and height 8.
The diameter of the semicircle is the hypotenuse of the triangle.


The radius is half the diameter.

The total area is the area of the triangle plus the area of the semicircle.


Answer:
33 1/3
Step-by-step explanation: