If segment AB is perpendicular to segment CD, then a right angle (90°) is formed.
7x + 27 = 90
7x = 63
x = 9
Answer:

Step-by-step explanation:
Given
Represent point A as thus;

Required
Determine the new position of A, when rotated counterclockwise
The new position will be denoted as A'
When a point is rotated counterclockwise, we start by switching the positions of x and y as follows:

Then, y is negated to give A'
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Answer: 13) 6
I dont know 16 or 17
19) 33
Step-by-step explanation:
Answer:
72.22
Step-by-step explanation:
Answer:
i not good at this but i think 2 6 18 54 could be the answer if not im so sorry
Step-by-step explanation: