Five,

Mathematics

1 answer:

Effectus [21]2 years ago

4 0

Answer:

39.5

Step-by-step explanation:

25*1.58

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Step-by-step explanation:

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Corey spies a bald eagle in a tall tree. He estimates the height of the tree to be 80 feet and the angle of elevation to the bir

shepuryov [24]

Answer:

Corey stepped back 59.71 feet

Step-by-step explanation:

Right Triangles

They are a special type of triangle where one of its internal angles is 90°. The basic trigonometric equations stand in this type of triangles. If x is the adjacent leg of a given angle $\theta$ , and y is the opposite leg to the same angle, then :

$\displaystyle tan\theta=\frac{y}{x}$

We can solve for x to get

$\displaystyle x=\frac{y}{tan\theta}$

Corey estimates the height of the tree to be 80 feet. This means we know y=80 and $\theta=68^o$ . Let's find the horizontal distance at which Corey is looking at the bald eagle: