Answer:
Chemical
Step-by-step explanation:
-12 because surface is usually considered as "0" so 12 ft below the surface means -12.
Answer:
32.5sq ft
Step-by-step explanation:
Answer:
ED ≈ 2.6 units
Step-by-step explanation:
Using the Sine rule in Δ DEF
= 
=
( cross- multiply )
ED sin115° = 6.95 sin20° ( divide both sides by sin115° )
ED =
≈ 2.6 ( to the nearest tenth )