Use the cosine law to answer the question which can be expressed as,
c² = a² + b² -2ab(cos C)
where c is the side opposite to angle C and a and b are the sides adjacent to the angle. Substituting the given values,
c² = 33² + 37² - (2)(33)(37)(cos 120°) = 3679
The value of c is 60.65. Therefore, the length of the third side is approximately 60.65 units.
The reflection of 
in the x-axis is 
. The function used to derive 
is: 
. (Correct choice: )
Mathematically speaking, a reflection in the x-axis is defined by the following expression:
(1)
Where:
- Original function.- - Reflected function.
If we know that , then the expression for is:
The reflection of in the x-axis is . The function used to derive is: .
We kindly invite to see this question on reflections: brainly.com/question/23558898
I believe it would be 72cm^2
