Final answer:
The correct equation to represent the hiker's depth of -125 feet is B. |(-125)| = 125, as absolute value represents magnitude without regard to direction.
Step-by-step explanation:
The question asks to identify the equation that represents the depth of the hiker in feet, given that they are at a depth of -125 feet. The correct representation of depth using an equation would involve the absolute value function because depth is always considered a positive number, regardless of its position relative to sea level.
Here, the absolute value of -125 is 125, as the function only considers magnitude and not direction. Therefore, the correct equation from the given options that represents the depth of the hiker in feet is B. |(-125)| = 125. This signifies that the absolute value (magnitude) of -125 is 125, which correctly states the depth as a positive value.