Answer:
11.9
Step-by-step explanation:
To understand the problem a little better you should know how they got the equation.
The equation is derived from Kepler's 3rd law: T^2=A^3
- where T = years and A= astronomical units (aka 'au')
** T is the time and A is the distance
Now you know what each of the letters mean, it'll be easier to solve.
First, plug in 5.20au into A:
T= A^3/2 —> T=5.20 ^3/2
then you can put this into your calculator to solve the rest:
T= 11.8578 OR 11.9
