B would be your best answer looking at the graphic chart
Given:

Required:
To calculate reference angle
Explanation:

Required answer:
Option B
Answer:
v=2
Step-by-step explanation:
8/v+1/2=7/v
1/2=8/v-7/v
1/2=1/v
(1/2)v=1
v=1/1/2
v=1*2/1
v=2
Answer:
10.5 this is the answer
Step-by-step explanation:
10.5