A)
9 + n = 5 quel est le chiffre qui manque

Votre réponse sera n=-4

Step-by-step explanation:

9+n=5

9-9+n=5-9  (Soustraire 9 des deux côtés)

n= -4

J'espère que cela t'aides :)

dude thats to long figure it

step-by-step explanation:

b) k’(6, 4); l’(3, 3)

step-by-step explanation:

a 270° clockwise rotation maps every point (x, y) to (y, -x). (it negates the x-coordinate and then switches it and the y-coordinate.)

this means the endpoints of the side congruent to kl, k' and l', would be mapped as:

k'(-4, 6)→(6, 4)

l'(-3, 3)→(3, 3)