A. 18.99 b 16.676 c 30.11 d 13.801 can't answer the rest right now I'm getting ready for school
Answer:
height is 4ft.
Step-by-step explanation:
I used pathagorus theorem .All explaination is in the pic below.
Answer:
C
Step-by-step explanation:
Fractions cant be integers
The result follows directly from properties of modular arithmetic:

That is,

means we can write
for some integer
. Then

and taken mod 12, the first term goes away, so

etc