Answer:
b
Step-by-step explanation:
First, look at my attachmentThe dump truck makes imaginary right triangle.
From the right triangle, we can find the h with sin ratio of the triangle. h/b = sin of angle
h = b × sin of angle
(h stands for height, b stands for bed)
PART A: If the angle is 45°h = b × sin 45°
h = 15 × 1/2√2
h = 15 × 0.707
h = 10.607
h = 10.6
The height is approximately 10.6 ft.
PART B: If the angle is 30°h = b × sin 30°
h = 15 × 1/2
h = 7.5
The height is 7.5 ft.
PART C: If the angle is 60°h = b × sin 60°
h = 15 × 1/2√3
h = 15 × 0.866
h = 12.990
h = 12.99
The height is approximately 12.99 ft.
The bottle is a cylinder, height <em>h</em> radius <em>r=h/4.</em>


![h = \sqrt[3]{ \dfrac{16V}{\pi} }](https://tex.z-dn.net/?f=h%20%3D%20%5Csqrt%5B3%5D%7B%20%5Cdfrac%7B16V%7D%7B%5Cpi%7D%20%7D)
Answer: second choice, cube root