At a horizontal distance of 200 m from the base of an observation tower, the angle between the ground and the line of sight to the top of the tower is 8°. Sketch and label a diagram to represent
the information in the problem. How high is the tower to the nearest metre?

Hope this helps. Any more questions?

9514 1404 393

  28 m

Step-by-step explanation:

The relevant trig relation is ...

  Tan = Opposite/Adjacent

  tan(8°) = height/distance to base

  height = (distance to base)tan(8°) = (200 m)tan(8°)

  height ≈ 28 m

is there a picture

step-by-step explanation:

since your problem is x^4 = 81, what you have to undeo is the "to the fourth power" part.

the inverse (opposite operation) of "to the fourth power" is "to the fourth root".

  (x^4) ^ ¼   = 81 ^ ¼  

  81 = 3^4     so (3 ^ 4) ^ ¼   =   3 ^ 1   = 3

by hand: (3 ^ 4) ^ ¼   =   3 ^ (4 x ¼) = 3 ^ 1   = 3   (when you take a power to a power, multiply the exponents.)

or, do it by calculator. one way of finding the fourth root is to use ^ (1/4)

step-by-step explanation: