Dr. black is standing 20 feet from a streetlamp. the lamp is making his shadow 5 feet long. he estimates that the angle of elevation from the tip of his shadow to the top of the streetlamp is 30. to the nearest foot, the streetlamp is about

The correct answer is:

14 ft.

Explanation:

Let x be the height of the street lamp. This is one leg of a right triangle.

The other leg is formed by the combination of the length of the shadow and the distance Dr. Black is standing from the lamp. This is 5+20 = 25.

The angle of elevation is 30°. Comparing the given sides to this angle, we have the side opposite the angle (x) and the side adjacent to the angle (25). We know that opposite/adjacent is the ratio for tangent; this gives us the equation:

the answer is b. 60. each interior angle in 120, so the exterior angle must be 60 in order to add up to 180

step-by-step explanation:

ok so the answer to your question is simple as long as you look at the different dimensions that contain the exemplary letters that combined in the right order give you words that eventually within the 5th dimension will conform and give you the correct answer to your question. hope i , stop looking at this easily, look at it with a spectral view.

step-by-step explanation:

told you