Answer:
centre = (- 3, - 2) , radius = 1
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 + 6x + y² + 4y + 12 = 0 ( subtract 12 from both sides )
x² + 6x + y² + 4y = - 12
Use the method of completing the square on the x and y terms
add ( half the coefficient of the x/ y terms )² to both sides
x² + 2(3)x + 9 + y² + 2(2)y + 4 = - 12 + 9 + 4
(x + 3)² + (y + 2)² = 1 ← in standard form
with centre = (- (- 3), - (- 2)) and r² = 1, that is
centre = (- 3, - 2) and radius = 1
0,3,6,9,12,15,18,21,24,27,30,33,36
0,12,24,36
I'mthat'sAnswer:
ima be honest I'm not that intelligent thats why im on here but if I'm not mistaken divide y by x and u should have your answer
Step-by-step explanation:
Answer:
$30
Step-by-step explanation:
12.50/5=2.50
2.50*12=30
For #8, it's approximately 2.5
