What are the roots of 12x = 9 + 5x2? a. `(-6 stackrel(+ isqrt(3))/(10)` b. `(-6 stackrel(+ isqrt(3))/(5)` c. `(6 stackrel(+ 3i)/(5)` d. `(-6 stackrel(+ 3i)/(5)`

i'm assuming it's looking for the missing length, which should be 4cm

hope this !

for finding the midpoint of any given 2 pair of points simply add the respective x coordinates with other x coordinate and the y coordinate with other y coordinate and divide them by 2

in your question it will be :

(3+1)/2 for the x coordinate of mid point i.e 2

[8+(-4)]/2 for the y coordinate of midpoint i.e 2

so coordinates of mid point of points (3,8) and (1,-4) will be (2,2)