Multiple Choice
In the diagram, S represents the position of a power relay station located on a straight coast, and E shows the location of a marine biology experimental station on an island. A cable is to be laid connecting the relay station with the experimental station. If the cost of running the cable on land is $2.50/running foot and the cost of running the cable under water is $6.50/running foot, locate the point P that will result in a minimum cost (solve for x) .
A) ft
B) ft
C) ft
D) ft
E) ft
Correct Answer:

Verified
Correct Answer:
Verified
Q26: By cutting away identical squares from each
Q27: Find the inflection points, if any, of
Q28: Using the curve-sketching guide, select the graph
Q29: Find the inflection points, if any, of
Q30: Find the relative maxima and relative minima,
Q32: Find the absolute maximum value and the
Q33: Suppose the total cost function for manufacturing
Q34: The height (in feet) attained by a
Q35: Find the absolute maximum value and the
Q36: Use the information summarized in the table