Answer:
2.8 miles.
True.
Step-by-step explanation:
Surface area = 4π r^2 (where r = the radius of the sphere)
24.63 = 4 π r^2
r^2 = 24.63 / 4π
r = √ ( 24.63 / 4π )
= 1.4 miles.
So the diameter = 2*1.4 = 2.8 miles (answer).
The answer to the second part of the question is true.
9squared=3(x)
81=3x
x=27
Notice that B = {1, 3, 5, 7} and C = {0, 2, 4, 6, 8, 10}.
A U B = {1, 3, 5, 7}.
B ∩ C = { }.
A U C = {0, 1, 2, 4, 5, 6, 7, 8, 10}.
