Question

While scuba diving Rajeev dove to a depth of 12.6 feet below the surface of the water and then descended another 8.7 feet

What expression can be use to find Rajeev new position

12.6 - 8.7

-12.6 - 8.7

-12.6 - (-8.7)

12.6 - (-8.7)

Answer 1

The equation would be
Y= -12.6ft+(-8.7ft)

Answer 2

Option B is the correct answer.

Explanation:

Scuba diving Rajeev dove to a depth of 12.6 feet below the surface of the water and then descended another 8.7 feet

Depth Rajeev dove = 12.6 feet.

Descended depth after dive = 8.7 feet

Total depth = 12.6 + 8.7

Since this is depth the sign of the position is negative.

Rajeev's new position = - ( 12.6 + 8.7) = -12.6 - 8.7

Option B is the correct answer.