C. length of 2 sides and a measurement of a included angle
Answer:
4 [ ( x - 5) ( x + 5) ]
Step-by-step explanation:
4x²-100
4 (x²-25)
4 (x²-5²)
4 [( x - 5) ( x + 5)]
We can say that:
8x = -2ax
8 = -2a
a = -4
22y = - 2by
22 = -2b
b = -11
37 = a² + b² - r²
37 = (-4)² + (-11)² - r²
r² = 16 + 121 - 37
r² = 100
r = 10
With all this information, we can say that:
The center of the circle is: (-4 ; -11)
and the radius of the circle is r = 10
P.S:
(a - x)² + (b-y)² = r²
a² - 2ax + x² + b² -2by + y² - r² = 0
x² + y² -2ax - 2by + a² + b² - r² = 0
10.2 is the decimal of it
Expanded: 3x^2 + 17x +10
Simply: it’s already simplified