If you know the center is at (-1,3), then find r by writing out the standard formula for the equation of a circle, as follows:
(x-2)^2 + (y-5)^2 = r^2
We still have the other point to deal with: (-4,1). Subst. -4 for x in this equation, and 1 for y:
(-4-2)^2 + (1-5)^2 = r^2. Then 36 + 16 = r^2,
and 52 = r^2, so that the radius is positive sqrt(52).
You could write that as sqrt(4)sqrt(13) = 2sqrt(13). Take your pick.
Answer:
5.9 ft
Step-by-step explanation:
The volume of a sphere is given by
V = 4/3 pi r^3
872 = 4/3 (3.14) r^3
872 =4.186666666 r^3
Divide each side by 4.1866666 on each side
872 / 4.186666666 = r^3
208.2802548 = r^3
Take the cube root of each side
(208.2802548)^(1/3) = r^3^(1/3)
5.927652012 = r
Rounding to the nearest tenth
5.9 ft
The answer to the question is B.
Answer:
Bruv, this is an English server.
Step-by-step explanation:
