Answer:
negative 2.5
Step-by-step explanation:
It is belove sea level, so it will be between negative 2 and negative 3 on a vertical number line.
The area of the base (six triangles with a base 15m and a height 7.5√3m):

The area of side walls (six triangles with a base 15m and a height 12m)

The surface area:
Bing + us = Bingus. That's all
Answer:
Completing the square is useful because it gives us alternatives to the quadratic formula and can solve problems that the quadratic formula can't.
Answer:
127°
Step-by-step explanation: