Answer: A
Step-by-step explanation: 8 - 5 = 3 not 13
Construct a mid-point on segment BC
Find the last angle:
180-(30+90)
180-(120)
60
Evaluate using sine rule:

=

c=

=

=20
The length of line segment AB is 20 feet (answer choice C)
Answer:
Landing on a 3 and on a shaded area
Step-by-step explanation:
Mutually exclusive means there is now way the two events can happen at the same time. This is the only option where it can either be one or the other