Answer:
Answer:
164.32 earth year
Step-by-step explanation:
distance of Neptune, Rn = 4.5 x 10^9 km
distance of earth, Re = 1.5 x 10^8 km
time period of earth, Te = 1 year
let the time period of Neptune is Tn.
According to the Kepler's third law
T² ∝ R³


Tn = 164.32 earth years
Thus, the neptune year is equal to 164.32 earth year.
Step-by-step explanation:
1 is the answer hope this helps
Answer:
D
Step-by-step explanation:
The area of a circle can be find with this formula:
radius^2 π
in this case we have the diameter, so we have to divide it by two
radius = 16 : 2 = 8 ft
area = 8^2 π
C ; 12 i think
or
B ; 144
Answer:
21
Step-by-step explanation:
60*.35