Amarine surveyor uses a rangefinder and a compass to locate a ship and an island in the vicinity of the coast on which she stands. the rangefinder indicates that the island is 393 ft from her position and the ship is 515 from her position. using the compass, she finds that the ship's azimuth is 332 degrees and that of the island is 48 degrees. what is the distance between the ship and the island.

The distance between the ship and the island is .

Step-by-step explanation:

The ship's azimuth is the direction measured as an angle from the north.

You should draw a diagram of the situation.

From the information given we know two distances and the angle between them and we want to find the distance between the ship and the island.

To find the distance between the ship and the island we can use the Law of Cosines.

If a, b and c are the lengths of the legs of a triangle opposite to the angles A, B and C respectively; then the law of cosines states:

This law is useful for finding: the third side of a triangle when we know two sides and the angle between them like in this case.

The angle is

And the distance is given by

.

3< x< 5

step-by-step explanation:

|x - 4| < 1

there are two solutions, one positive and one negative.   remember to flip the inequality when taking the negative solution

x-4 < 1       x-4 > -1

add 4 to each side

x-4+4 < 1+4       x-4+4 > -1+4

x< 5                 x> 3

3< x< 5

the formula of a slope:

from a table we have

substitute:

the slope of f(x) is -1.

the graph of funcfion g(x) is a horizontal line. the slope of a horizontal line is equal 0. therefore the slope of g(x) is 0.

-1 < 0