An observer was standing at a post at point A in the diagram and sighted another post at B at a heading of 94 degrees from north. The observer
walks 70 meters due north up river and sights the post at a heading of
142 degrees from north. How far apart are the posts?

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Ответ:

sabrinabowers1002

28.02.2023

Mathematics

9514 1404 393

A) 26°

Step-by-step explanation:

The angle x decreases at a rate that is 12 times the rate of increase of angle y.

x = 360 -12y

We want x = 2y, so ...

2y = 360 -12y

14y = 360

y = 360/14 ≈ 25.71 ≈ 26

The integer angle closest to y is 26°.

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An observer was standing at a post at point A in the diagram and sighted another post at B at a heading of 94 degrees from north. The observer walks 70 meters due north up river and sights the post at a heading of 142 degrees from north. How far apart are the posts?