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Serhud [2]
3 years ago
12

(Show full work please) Carter spots an airplane on radar that is currently approaching in a straight line, and

Mathematics
1 answer:
Otrada [13]3 years ago
8 0

Consult the attached diagram.

In the larger triangle,

tan(16°) = (7250 ft) / (<em>x</em> + <em>y</em>)

and in the smaller triangle,

tan(26°) = (7250 ft) / <em>y</em>

You want to solve for <em>x</em>.

From the first equation (I'm ignoring units from here on, all distances are measured in ft), you have

(<em>x</em> + <em>y</em>) tan(16°) = 7250

<em>x</em> tan(16°) + <em>y</em> tan(16°) = 7250

<em>x</em> tan(16°) = 7250 - <em>y</em> tan(16°)

<em>x</em> = 7250 cot(16°) - <em>y</em>

<em />

From the second equation,

<em>y</em> = 7250 cot(26°)

Solving for <em>x</em> gives

<em>x</em> = 7250 cot(16°) - 7250 cot(26°)

<em>x</em> = 7250 (cot(16°) - cot(26°))

<em>x</em> ≈ 10,433 ft

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