Answer:
<em> Length of guy wire is 590.6 ft</em>
Step-by-step explanation:
The complete question is
A radio transmission tower is 210 feet tall. How long should a guy wire be if it is to be attached 8 feet from the top and is to make an angle of 20° with the ground. Give your answer to the nearest tenth of a foot.
height of tower = 210 ft
8 ft fro the top leaves 210 - 8 = 202 ft to the ground
This is an angle of elevation problem
the opposite is 202 ft
hypotenuse = ?
angle is 20°
using sin ∅ = opp/hyp
sin 20° = 202/hyp
0.342 = 202/hyp
hyp = 202/0.342 = <em>590.6 ft this is the length of the guy wire</em>
If x=3+bi, then

You know that
then

Two possible complex numbers satisfy these conditions:

As you can see the possible value of b is 2.
Answer: correct choice is A.
Answer:
eboi
Step-by-step explanation:
Answer:
481.06
Step-by-step explanation:
Let's visualise this case in a right angled triangle.
Height = 300.6 m
Angle of depression = Angle of elevation = 32°
So,




Hypotenuse = Line of sight = 567.25 m
Also,



Hence Base = Distance between the spot of accident & the base of the tower = 481.06 m