If theta is less than 90 degrees, wouldn't it be an acute angle?
# of blankets at the beginning = b
11 = b - 9
11 + 9 = b
b = 20
The answer as a decimal is 0.06507705122
Hope this helps!
Speed = 416 miles / 8hrs = 52 miles per hr.
Distance = Speed * Time = 52 * 22 = 1144miles
