After you type in your equations and hit graph you notice that, if you are in the standard window, your parabola is cut off so you have to choose your "window" button to change the viewing window to see the whole graph. Then you would use your 2nd button and "trace" and "intersect" to find the points of intersection of the 2 graphs. The first point is at (-.90901, 16.81812) and the second point is at (5.9090909, 3.1818182). Graphing calculators are quite amazing!
Remark
Write down all the trenches, add them together, divide by 4.


Answer
The average depth is - 32148 to the nearest foot.
Answer: C is the correct answer
Step-by-step explanation:
Answer:
first one
Step-by-step explanation: