I believe you only need to know one angle.
For example, if you know angle 1, you can calculate angle 3. Angle 2 = angle 3 and angle 4 = angle 1.
Also, Angle 5= angle 1 and so on...
Answer:
-10y
Step-by-step explanation:
=5x-5y-5y-5x
=5x-5x-5y-5y
=-10y
Answer: 255
Step-by-step explanation: All you do is subtract 8,745 from 9000.
Answer:22.36 mi/hr
Step-by-step explanation:
Given
water in a river moves south at 
motorboat travels due to east at a speed of 
Velocity of boat relative to the moving water 


Magnitude of 


with the x axis.
Answer:
Approximate percent error = 15%
Step-by-Step Explanation:
Let the percentage of error be "e"
Anticipated sales = 2,500
Actual sales = 2,125
The percentage error "e" can be calculated as per the equation below:
2500*(1-e) = 2125
(1-e) = 2125/2500
1-e = 0.85
e = 1-0.85
e = 0.15
e = 15%
Approximate percentage error = 15%