The answer is 47 degrees , using Linear Pair Axiom
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4 cups of milk to 1 cup of oatmeal
Question
If DE = 4x-1, EF = 9, and DF = 9x-22, find the value of x.
Answer
x = 6
Answer:
ACB = 112°
Step-by-step explanation:
First form a sketch where will have a triangle sketch showing the points ABC with AB= 80km and CB = 56 km
Apply the law of cosine as;
c²=a²+b²-2ab*cos(C)
To get angle C;
C=arccos((a²+b²-c²)/(2ab))
Substitute values given in the equation as
C=arccos((40²+56²-80²)/(2*40*56))
C=arccos(-1664/4480)
C=112°
The answer is 0.01333 repeating :)