Answer:
![\sf x^2+y^2=37](https://tex.z-dn.net/?f=%5Csf%20x%5E2%2By%5E2%3D37)
Step-by-step explanation:
Equation of a circle: ![\sf(x-h)^2+(y-k)^2=r^2](https://tex.z-dn.net/?f=%5Csf%28x-h%29%5E2%2B%28y-k%29%5E2%3Dr%5E2)
where (h, k) is the center and r is the radius
Given the center is at (0, 0)
![\sf \implies (x-0)^2+(y-0)^2=r^2](https://tex.z-dn.net/?f=%5Csf%20%5Cimplies%20%28x-0%29%5E2%2B%28y-0%29%5E2%3Dr%5E2)
![\sf \implies x^2+y^2=r^2](https://tex.z-dn.net/?f=%5Csf%20%5Cimplies%20x%5E2%2By%5E2%3Dr%5E2)
Given the circle passes through point (1, -6):
![\sf \implies (1)^2+(-6)^2=r^2](https://tex.z-dn.net/?f=%5Csf%20%5Cimplies%20%281%29%5E2%2B%28-6%29%5E2%3Dr%5E2)
![\sf \implies r^2=37](https://tex.z-dn.net/?f=%5Csf%20%5Cimplies%20r%5E2%3D37)
Therefore, the equation of the circle is:
![\sf \implies x^2+y^2=37](https://tex.z-dn.net/?f=%5Csf%20%5Cimplies%20x%5E2%2By%5E2%3D37)
27/x = 3
times by x on both sides
27 = 3x
divide by 3 on both sides
27/3 = x
9 = x
Answer:
therefore the answer of the total interest at the end of 12 years is
B) $1,680,00
Step-by-step explanation:
$4,000 x 3.5 = $14,00
$14,000 x 12 = $1,680,00
Hope this helped (: