Answer:
45.3°
Explanation:
A right triangle is formed given the information above.
Angle of depression = x°
Distance between first bird and birdwatcher = opposite to angle x° = 32 ft
Distance between second bird and birdwatcher = hypotenuse of the right triangle formed = 45 ft
The trigonometric ratio formula to use is:
![sin(x) = (opp)/(hypo)](https://img.qammunity.org/2021/formulas/mathematics/high-school/4py6n96uiqvkoqzlrej6e9wc9twb55g9k1.png)
![sin(x) = (32)/(45)](https://img.qammunity.org/2021/formulas/mathematics/high-school/v1wz2xff4bnwz5i1d5ow3xxx117f6jts6v.png)
![sin(x) = 0.7111](https://img.qammunity.org/2021/formulas/mathematics/high-school/inhn9ejyjfp9j7fo7hx9x16ohji0ctiuyq.png)
![x = sin^(-1)(0.7111)](https://img.qammunity.org/2021/formulas/mathematics/high-school/hkmh4i6p2v5l7ki9obhjnpsh0jq8osgrtr.png)
(nearest tenth)
Angle of depression = 45.3°