Step-by-step explanation:
The shaded area shows the region where it is enclosed in sample space S but does not include the subset B.
Hence it is the complement of B. (A)
I don't know the answer, but I suggest downloading the app: PhotoMath. It scans a math problem and shows you how to complete the problem. I hope this helped~!
Answer:
Cosine
Step-by-step explanation:
Cosine = 
Cos 70 = 
0.633 = 
0.633 x 8 =
x 8
5.064 = x
5’3 is 63 inches since her brother is 1/3 larger so 63/3= 21 inches