Find the angle of depression from the top of a lighthouse, 260 feet above water to a ship that's 270 feet offshore?

a.87.840
b.46.08 °
c. 43.92 °
d.92.160

OPTION C.

Step-by-step explanation:

Observe the triangle ABC attached.

Notice that the angle of depression is represented with .

Knowing that the top of a lighthouse is 260 feet above water and the ship is 270 feet offshore, you can find the value of   by using arctangent:

In this case you can identify that:

Therefore, substuting values into  , you get that the angle of depression is:

 

Bis your answer. it only holds the decimal numerals

This law is sometimes called the grouping property. as you can see, regardless of how the numbers are grouped, the answer is still 13. the associative law of multiplication is similar to the same law for addition. it says that no matter how you group numbers you are multiplying together, you will get the same answer.