Answer: C
Step-by-step explanation:
Answer:
x^2 +y^2 -40x -24y -81 =0
Step-by-step explanation:
We can write the equation of a circle in the form
(x-h)^2 + (y-k)^2 = r^2
Where (h,k) is the center and r is the radius
Assuming that Pamela's cabin is the center
( x-20)^2 + (y- 12)^2 = 25^2
We want to get to general form
x^2 + y^2 + Dx + Ey + F = 0,
Distributing
x^2 -40x +400 + y^2 -24y +144 = 625
x^2 +y^2 -40x -24y +544 -625 =0
x^2 +y^2 -40x -24y -81 =0
The first one. X is greater than or equal to -1
Answer:
The answer is D. 5 to 2
Step-by-step explanation:
It sounds like they want the ratio to be given in that order.
Hope that helps!
Answer:
756000
Step-by-step explanation:
You will multiply 30x60(There are 60 seconds in a min)=1800
Then Multiple 420x1800=756000
