1deanxcas1
15.01.2021 •
Mathematics
Question 4 (2 points)
Which equation represents a line parallel to the line whose equation is 2y - 5x = 10?
оа
2y + 10x = 8
Ob
4y - 10x = 12
OC
5y + 2x = 10
Od
5y-2x = 25
Question 5 (2 points)
What is the slope of the line perpendicular to the line represented by the equation 2x + 4y = 12?
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Ответ:
Cosine is adjacent over hypotenuse.
C is the right angle so AB is the hypotenuse.
A is the angle we're interested in, so AC is the adjacent.
cos A = AC/AB = 12/37
12/37