Certainly! I have had the honor of training with two of them, both natives of Okinawa.
There is no such thing as a tenth degree black belt.
The answer depends on the degree of rounding. To the nearest tenth (or smaller) it is 1 tenth. To the nearest unit (or bigger) it is 0.
There are two major levels in Karate and most Japanese based martial arts. The first are the beginners, the Kyu (Japanese) or Gup (Korean) students. Typically these are indicated by different colored belts and in general run from lighter to darker colors as one gets more knowledge and skill. Then there are the Dan levels, or the black belts. There are 10 levels of these from First Degree Black Belt to Tenth Degree. In most styles the first 6 levels of black belt are really black. Seven and Eighth wear a red and white striped belt and Ninth and Tenth wear a solid red belt.
The angle would be .4 if you rounded it to the nearest 10th degree
No Use, atleast have a degree behind for better career.
As an integer, it is already rounded to the nearest tenth.
The angle would be 82.4053 degrees, or 82.4 correct to the nearest tenth of a degree.
If that's 12 degrees, it's 12.0
8947.0
A 'real' black belt is usually not awarded to someone until they reach their teens. Many styles won't give a fully certified blackbelt until someone is high school age. 'Youngest age' means nothing if it isn't legitimate. I'm sure you can find 4 and 5 year olds that have been awarded a blackbelt, but the reality is that they do not have the maturity to have one
The answer will depend on the degree to which you wish to round - a tenth, a unit, tens etc.
Runways