anonymous
  • anonymous
Scarlett is trying to find the height of a dam. She stands 90 meters away from the dam and records the angle of elevation to the top of the dam to be 26º. Scarlett's height is 1.65 meters, so the height of the dam is
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
help please
anonymous
  • anonymous
|dw:1439257182092:dw|
anonymous
  • anonymous
this is why tangent was invented btw you have \[\frac{x}{90}=\tan(26)\] so \[x=90\times \tan(26)\]

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anonymous
  • anonymous
use a calculator, then add \(1.65\)
anonymous
  • anonymous
I still don't understand
anonymous
  • anonymous
tangent is "opposite over adjacent" right?
anonymous
  • anonymous
you are told the "adjacent' it is 90m you are looking for the "opposite" the height
anonymous
  • anonymous
multiply 90*26
anonymous
  • anonymous
no dear not by 26, but rather by the tangent of 26
anonymous
  • anonymous
\[x=90\times \tan(26)\] you need a calculator for this
anonymous
  • anonymous
43.8
anonymous
  • anonymous
i get \(43.9\) rounded then don't forget to add her height
anonymous
  • anonymous
http://www.wolframalpha.com/input/?i=90tan%2826%29

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