Answer:
centre = (- 1, - 3 ) , radius = 6
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 + 2x + 6y = 26 ( collect x and y terms )
x² + 2x + y² + 6y = 26
using the method of completing the square
add ( half the coefficient of the x/ y terms )² to both sides
x² + 2(1)x + 1 + y² + 2(3)y + 9 = 26 + 1 + 9
(x + 1)² + (y + 3)² = 36 ← in standard form
with centre = (- 1, - 3 ) and r = = 6
Answer:
8 years approximately
The problem (I'm assuming is):
Solve .
I put a t in the problem where I suspected it in went.
Step-by-step explanation:
Divide both sides by 100:
Rewrite in logarithm form.
Divide both sides by 0.05:
Put left hand side into calculator:
So about 8 years if I wrote down the equation correctly.
Answer:
g = (x-2) / 3
Step-by-step explanation:
Isolate g:
x -2 = 3g + 2 -2
x -2 = 3g
(x-2) / 3 = 3g / 3
(x-2) / 3 = g
Answer:
It would be 4 or C.
Step-by-step explanation:
Hope this helps!
Good Luck!
:)
Pink and yellow are perpendicular