Using appropriate properties find 9/16×4/12+9/16×-5/9​

-1/8

Step-by-step explanation:

Given 9/16×4/12+9/16×-5/9​

Using the PEMDAS rule;

Multiplication first

(9/16×4/12)+(9/16×-5/9​)

= 3/4 * 1/4 + -5/16

= 3/16 - 5/16

= (3-5)/16

= -2/16

= -1/8

Hence the required answer is -1/8

18

step-by-step explanation:

draw the shape and you will see that f and k are actually at adjacent vertices (points of the hexagon that are neighboring).   so find the distance between (1,2) and (4,2).   that is easy since (1,2) and (4,2) is just a vertical distance to count, which is 3.   it is a regular polygon which means all sides are congruent.   you have 6 sides (hexa) so multiply 6 by 3 to receive 18.