3 years ago

Help with 8 9 and 10

Mathematics

1 answer:

Rainbow [258]3 years ago

6 0

9. 2.86600.... that is all i know so far

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From a point 80 feet in front of a library, the angles of elevation to the base of a flagpole, and to the top of the flag are 22

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check the picture below.

$\bf tan(22^o)=\cfrac{x}{80}\implies \boxed{80tan(22^o)=x}
\\\\[-0.35em]
~\dotfill\\\\
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\\\\\\
80tan(43.5^o)-80tan(22^o)=y\implies 43.59506727037783689501 \approx y
\\\\[-0.35em]
\rule{34em}{0.25pt}\\\\
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3 years ago

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