In which quadrant is the abscissa positive and the ordinate negative?
a) i
b) ii
c) iii
d) iv

Quadrant IV.

Step-by-step explanation:

Abscissa is the value of the x coordinate while ordinate is the y coordinate. In quadrant I, the ordered pair is (positive abscissa, positive ordinate.

Quadrant II has negative abscissa and positive ordinate.

Quadrant III is both negative abscissa and negative ordinate.

Lastly, Quadrant IV has positive abscissa and negative ordinate.

dc=6 square root of 3 and ac is 12 square root 3

c and d

step-by-step explanation:

square root of 3/2 = 18/c

cross multiply to get 18*2=√3*c

36/√3 * √3/√3 = c

c= 36*√3/3

c=12√3