20 ÷ 2 (5,5)
20 ÷ 2 (25)
20 ÷ 50
.4
Answer:
- root (7²+8²)=10.63
- root (10²-5²)=8.66
- root (11²-3²)=10.58
- root (18²+15²)=23.43
Step-by-step explanation:
a²+b² = c²
a = side of right triangle
b = side of right triangle
c = hypotenuse
90/15-7/15=83/15 the correct answer to this equation.
He starts at -184 ft (since he is below the surface) and then goes up + 53 ft putting him at -131 ft.
-184+53=-131
Then he goes down another -168 feet to -299 ft.
-131-168=-299
So, he is currently at -299ft, or 299 feet below the surface.