<u>Answer</u>
The correct answer is A.
<u>Explanation</u>
The given triangle is a right triangle.
The length of the hypotenuse is 
units.
The given angle is 
.
The unknown side 
is adjacent to the given angle.
We can therefore use the cosine function to find .
Recall the mnemonics CAH.
This means that;
This implies that,
We multiply both sides by to get,
We evaluate to get
Therefore the length of the side of the triangle is 
units to the nearest tenth.
D loud sound
Hope this helped:)
As science being dynamic many things will change and due to this changes many things and theories will be new to us. the model of the atom is not weak, it is just developing as time progress because in the early times it is not fully understood because of the lack of technology to study, what scientist do is just filling the knowledge gap of the previous studies.
