The current dept is 37 feet below the water surface.
What is negative sign?
A negative sign or minus sign is a mathematical symbol to represents the subtraction between to numbers. It is also used to represent a negative numbers.
The negative or minus sign also indicates movement in the opposite direction on a number line.
According to the given question
Scuba diver is 120 feet below the water surface.
On number line 120 feet below is represented by -120.
She ascends 83 feet means , she goes up 83 feet up
So, the current depth is calculated as
-120feet + 83feet
= -37 feet.
The negative sign represent that Scuba is 37 feet below the water surface.
Hence, the current dept is 37 feet below the water surface.
Learn more about negative sign here:
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