The answer for this question is 100
X2 + y2 - 14x + 10y = 250
x2 -14x + 49 - 49 + y2 + 10x + 25 - 25 = 250
(x - 7)^2 - 49 + (y+5)^2 - 25 = 250
(x-7)^2 + (y+5)^2 = 250 + 49 + 25
(x-7)^2 + (y+5)^2 = 324
Therefore the radius, r
r = 324^0.5
r = 18
Answer:
A
Simpel use have to use input outpout machine
Answer:
Some people just put those links for virus so don't click on them, and i don't think they actually read the question.
I think the average spend is 11 km. i don't know for sure..
