If you know b and c multiply them
If you know a and b, divide a by b
If you know a and c, divide a by c
An easy way to visualize this is with a triangle, a would be at the top and b/c at the bottom, to use it multiply across and divide going down, Google formula triangle to get a better view of it
We have that
the measure of angle ∅=7*pi/6
the measure of its reference angle is?
remember that pi=180°
then
7*pi/6=7*180/6=210°------------> III Quadrant
Part A) its reference angle is 210°-180°=30°
Part B) sin(30°)=-0.5--------> negative because belongs III quadrant
Answer:
q=1
Step-by-step explanation:
you add 2 on -3, and that should be it :D
Time taken for the boats to meet will be given by:
time=(distance)/(speed)
relative speed=(speed of boat A+speed of boat B)
speed of boat A=2.5 mph
speed of boat B=2(2.5)=5 mph
thus
relative speed=(5+2.5)=7.5 mph
distance=30 miles
thus
time=30/7.5=4 hours
thus the earliest they can meet is 4 hours