Answer:
centre = (- 2, 3 )
Step-by-step explanation:
the equation of a circle in standard form is
(x - h)² + (y - k)² = r²
where (h, k ) are the coordinates of the centre and r is the radius
given
x² + y² + 4x - 6y = 12 ( collect x/ y terms )
x² + 4x + y² - 6y = 12
using the method of completing the square
add ( half the coefficient of the x/ y terms)² to both sides
x² + 2(2)x + 4 + y² + 2(- 3)y + 9 = 12 + 4 + 9
(x + 2)² + (y - 3)² = 25 ← in standard form
with centre (- 2, 3 ) and r = 
= 5
Answer:
C) angles are congruent and all corresponding pairs of sides are congruent a similarity transformation alt corresponding pairs
Step-by-step explanation:
The answer is false it’s facts basically
Answer: d= +5-2 = 3
Step-by-step explanation:
An elevator is two floor below the ground level. Any distance below the ground level is always measured with the negative notation.
So the location of the elevator given by (-2)
Now when elevator goes up by 5 floors, the location of elevator relative to the ground level will be (+5)
d=+5-2
Answer:
No.
Step-by-step explanation:
When the side lengths are consecutive integers, only the lengths 3, 4, and 5 will form a right triangle.
8^2 ≠ 6^2 + 7^2 . . . . for a right triangle, the square of the hypotenuse must be the sum of the squares of the legs
64 ≠ 36 + 49 = 85
