Bonsoir, pourriez vous me filer un petit coup de main ?? Je doit le rendre ce soir au plus vite et je n'y arrive pas... "le professeur principal de la classe de 3e B félicite ses élèves. Entre le premier et le deuxième trimestre, la moyenne générale de la classe a augmenté de 12%. Au premier trimestre, cette moyenne etait de 12,5 calculer la moyenne du deuxième trimestre"

Merci d'avance. Cordialement.

answer: a

step-by-step explanation: the answer is a due to the rule of symmetry; that a line of symmetry must divide a figure into 2 pieces that are the exact same, only reflected over a line of symmetry. b and c do not have lines of symmetry and would not divide the figure evenly, thus making the answer a.

45.36 feet per second

step-by-step explanation:

tyrone travels 30 miles in 58.2 minutes.  

1 mile = 5280 feet; this means he travels

30(5280) = 158400 feet in 58.2 minutes.

1 minute = 60 seconds; this means he travels 158400 feet in

58.2(60) = 3492 seconds.

this gives us the unit rate of

158400/3492 = 45.36 feet per second.

-3.5 degrees per hour

step-by-step explanation:

find the unit rate:

-12   1/4 degrees           12.25 degrees

= - = -3.5 degrees per hour

      3   1/2 hours               3.5 hours