Answer:

Step-by-step explanation:
Factor the expression to give you the result, or you can use the quadratic formula and notice you get 3 and 6.
Answer:
22 minutes
Step-by-step explanation:
40--15 =40+15=55
55/2.5=22
Answer:
171 foot
Step-by-step explanation:
We are given that
Height of tower=135 ft
AC=55 ft
Let x be the length of shortest length of wire.
The angle of inclination of mountain with horizontal =
The angle between sides AB and BC=
Exterior angle is equal to sum interior angles of a triangle on the opposite sides .
We have to find the value of x.
We know that law of cosine

Substitute the values in the given formula we get


Hence, the length of wire needed=171 foot