NEED HELP ASAP Question 6 of 25
What is cos 28°?
62
17
18
28
900
15
O A
음
OB.
va
O
C.
colo
D.
|D

cos 28 = 0.88295 5dp

It is B (see the explanation)

Step-by-step explanation:

You can easily find this answer on a CASIO calculator (you just have to set it up for angles)

We just have to see which answer is the closest to 0.88295

 A:   8/17 = 0.47059 5dp

No go

B: 15/17 = 0.88235 5dp

is the closest

Let's just see the other answers

C: 15/8 = 1.875

No go

D: 8/15 = 0.5333 recurring

No go

you would use (d.) the law of cosines or a^2 = b^2 + c^2 – 2bc(cos a)

, b^2 = a^2 + c^2 – 2ac(cos b), or c^2 = a^2 + b^2 - 2ab(cos c). you wouldn't use b. the law of sines as it is mostly effective when 1side and 2angles are given. a and c aren't the answer for they are the improper versions of the law of cosines. hope this is .

step-by-step explanation:

i am not sure sorry : c