#1 is 12x² -15x
#2 is fx-9x
1.8 divided by .08 is 22.5
Answer:
Its B kiddos
Step-by-step explanation:
This is an equilateral triangle of height a√3/2 where a is the side length. So the area is ½a.a√3/2=a²√3/4.
So a²=25 and a=5cm. Therefore the perimeter is 3a=15cm.
Answer:
AC=-160
BC is the midpoint of AC meaning half of AC
-160/2=-80
