The x-axis don't change. Focus on the y-axis which is 5. We have to move down 7. 5-7. The answer will be (-2, -2).
The length of the mirror is 64.52 cm
<u>Explanation:</u>
Given:
Distance of the person from the mirror = 145cm
Angle of depression = 14°
Angle of elevation = 11°
Vertical dimension of the mirror = ?
For angle of elevation:

For the angle of depression:

Total length of the mirror, AC = AB + BC
= 28.275 + 36.25cm
= 64.52 cm
Therefore, the length of the mirror is 64.52 cm
<h2>
Answer:</h2>
We will simply solve them and get correct answers that will match the answers provided.
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We divide the total set into several sub-sets (subgroups) that contain the exact same number of members. This way we know the number of total members by adding the number of total subsets.