Answer:
17.82
Step-by-step explanation:
since this is a right triangle you can use one of the trigonometric ratios, in this case it would be cosine because you have values for the adjacent and hypotenuse sides
cos(27°) = x/20
x = 20 · cos(27°)
x = 17.82
Answer:
B: y=cos(x-5). I'm sorry I can't really explain.
1.905 rounded to the nearest tenth is 1.9