State which, if any, of the following lines are perpendicular. a) 4y=2x+12

b) 1/2y=x+5/2

c) 4y+2x=−16

d) 1/3y=x+2/3. Single choice.

A c . B d

Step-by-step explanation:

As they were having the same value face

Same value faceing of them is common as it provides them a better valuation

Hope this helped

x = ± 6i

step-by-step explanation:

x^2 = -36

take the square root of each side

sqrt(x^2) = sqrt(-36)

we know sqrt(ab) = sqrt(a) sqrt(b)

x = ±sqrt(36) sqrt(-1)

we know that sqrt (-1) = i

x = ± 6i