For this case we have to define trigonometric relations of rectangular triangles that:
- The cosine of an angle is given by the leg adjacent to the angle on the hypotenuse of the triangle.
- The sine of an angle is given by the leg opposite the angle on the hypotenuse of the triangle.
Then, according to the figure we have:

Answer:

Option D
Answer:
Not really 100% sure how to answer this, but if you would like to find the price of any item 10% off, you would just multiply the price by 0.9
EX: item cost $100
$100 x 0.9 = $90
Meaning the price of the item after the discount is applied would be $90
Step-by-step explanation:

Answer:
The correct answer is 4.8 meters.
Step-by-step explanation:
Jamal stands on a dock 1.5 meters above the surface of the water.
A trout swims 4.8 meters below Jamal.
The trout must be swimming below the surface of water.
Therefore the distance below the surface of water where the trout is swimming is 4.8 - 1.5 = 3.5 meters.
But the vertical distance between Jamal and the trout is 4.8 meters only.