Answer:
C.
Step-by-step explanation:
angle C is opposite to side/line AB
Complete Question:
The profile of a dam is modeled by the equation y = 24 (StartFraction x Over 10 EndFraction) squared, where x represents horizontal distance and y represents height, both in meters.
Point Z is at a horizontal distance of 15 meters from the left-most point of the dam. What is the height of the dam at point Z?
Answer:
The height is 36 meters
Step-by-step explanation:
Given

Required
The interpretation of the question is to determine the value of y when x = 15
Substitute 15 for x in: 



<em>The height is 36 meters</em>
Really hope this helps, if you need more help I may be able to go more in depth
1.

2.

3.

4.

1. Start
2. Multiply both sides by 3
3. Subtract a from both sides
4. Subtract c from each sides