Answer:
C ≈ 22.1°
Step-by-step explanation:
The law of cosines formula is given. Solving it for C, we find ...
C = arccos((a^2 +b^2 -c^2)/(2ab))
where a and b are the sides adjacent to the angle.
Then we have ...
C = arccos((14^2 +19^2 -8^2)/(2·14·19)) = arccos(493/532)
C ≈ 22.1°
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If you have a fair number of these to do, a spreadsheet is a useful tool. There are also triangle solver apps on the web or your local smart platform that will do this, too.
(6, 9) is the other end point. This is because the given endpoint is 7 units below the midpoint. Therefore, the other one is seven above, at a y value of 9.
Answer:
b) 7 sheep and 14 chickens - 7x4=28 and 14x2=28 --- 28x2= 56