It should be 5/13 because the opposite angle from D is 12, which you would use if you are looking for sine. But, since you are looking for cosine, it is adjacent over hypotenuse. Therefore leaving you with 5/13, since your hypotenuse is always your longest side and the adjacent is the other side from the one opposite of the angle.
I dont really know the answer but u can use this app called photomath and it will help
Answer:
0.72
Step-by-step explanation:
first you take 1.60 and find 10 percent of it once you find that you times it by 4.5.
