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Answer:
She must swim 10 feet before she reaches the surface; from <em>level -10</em> to<em> level 0 (Equation: </em>)
Step-by-step explanation:
Based on the information provided, you can assume that the surface of the lake is at <em>level 0.</em>
You know that the swimmer dives 10 feet below the surface; this is the <em>level -10 .</em>
This means that she must swim 10 feet from the <em>level -10</em> to the level 0 in order to reach the surface of the lake.
Therefore, to find how far she must swim before she reaches the surface, it is necessary to add<em> levels -10 </em>and <em>+10</em> to get the<em> level 0.</em> This can be represented with the following equation:
The statement that's true about the triangle is that WXY + YXZ = 180°.
<h3>How to illustrate the information?</h3>It should be noted that in the question, the options are related to a linear pair.
According to the linear pair, when a line cuts another line at a point, then the sum of the adjacent angles formed at the point will be 180°.
Therefore, WXY + YXZ = 180°.
The correct option is C.
The complete question is:
Which statement regarding the diagram is true?
m∠WXY = m∠YXZ
m∠WXY < m∠YZX
m∠WXY + m∠YXZ = 180°
m∠WXY + m∠XYZ = 180°
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