The given details are illustrations of addition and subtractions of fractions. The scuba driver is at an elevation of
ft below the sea level.
Given that:
--- the first dive
---- the additional dive
From the question, we understand that the diver starts at the sea level.
This is represented with 0ft.
So, the diver's elevation (d) is calculated as follows:
--- we use subtraction because the diver is below the sea level
So, we have:


Convert fractions

Take LCM


Reduce fraction

The above value means that the diver's elevation is at
ft below the sea level.
Read more about fractions at:
brainly.com/question/18134643
Answer:
Angle 1 = 38 and angle 4 = 142 degrees.
Answer:
3/-2
Step-by-step explanation:
All other answers have 2 negative signs, so they all will become positive numbers.
SE NÃO ME ENGANO A RESPOSTA É A 10