Answer:
Step-by-step explanation:
a= 12 mm ; b = 16 mm ; c = 18 mm
s = (a + b+c)/2

s -a = 18 - 12 = 6 mm
s -b = 18 - 16 = 2 mm
s -c = 18 - 8 = 10 mm



= 5.75
Height = 5.8 mm
5x+9z-x
5x-x+9z
4x+9z
Equivalent expression is asking for you to simplify by adding like terms and eliminatino parenthesis. Use the PEMDAS.
Answer:
-6 is the y coordinate
Step-by-step explanation: