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>
Alll angles in a quadrilateral add to 360
so
missing angle=x
108+99+78+x=360
285+x=360
minus 285 from both sides
x=75
missing angle is 75 degrees
<span> Norman window with a perimeter of 22 feet?</span>
First, we pass the other number subtracting, like this:

Then we pass the number 3 dividing, like this:

So, the answer is: W = -3.
Hope this helped! c: