1 cm = 500km the ratio is 1 to

1:500

Step-by-step explanation:

Since it has already given you the conversion factor, the ratio is 1:500, where every 1 cm is 500 km.

hello from mrbilldoesmath!

answer:   x^2 + y^2 = 1024

discussion:

the equation of a circle with center (h,k) and radius "r" is

(x-h)^2 + (y-k)^2 = r^2.

in our case

(x-0)^2 + (y-0) ^2 = 32^2 = 1024

you,

mrb