Answer:
Approximately 14.42
Step-by-step explanation:
All you have to do is use the Pythagorean Theorem! In case you don't remember, it's a² + b² = c², where a and b are legs and c is the hypotenuse.
So...
8² + 12² = c²
64 + 144 = c²
208 = c²
= 14.42
Answer: 3x-26y+11z
Step-by-step explanation:

the reason why the value is not an integer, is most likely because the 21.2<span>° is just an approximation.</span>