The angle of depression from the top of a 150 m high cliff to a boat at sea is 7 degree. how much closer to the cliff must the boat move for the angle of depression to become 19 degree.

exa:

)

3+11

14

step-by-step explanation:

from this example, we can see that subtracting with integers is the same as adding the opposite. we can solve using a number line or by using the saying "keep, change, change" to us solve. it is important to remember that we can subtract a negative and end up with a larger number than we started with.