Answer:

Step-by-step explanation:
The answer is -.06 ........................
Answer:
80 ft
Step-by-step explanation:
Let the height of the light house be x feet.

Answer:
20 units squared
Step-by-step explanation:
Use pythagorean theorem to find third side of triangle


Take the sqr root of 20

So the side of the square is sqr root of 20
Area is length x width
The area of a square is 2 times s, where s is the length of one side since a square sides are all equal.
So

45÷9=5 So then 6x5=30 A=30