Answer:
-2x+2y+3z=0
-2x-y+z=-3
2x+3y+3z=5
---------------
-2x+2y+3z=0
-2x-y+z=-3
---------------- Subtract
3y + 2z = 3 Eqn A
=========================
-2x-y+z=-3
2x+3y+3z=5
---------------- Add
2y + 4z = 2
6y + 4z = 6 Eqn A times 2
------------------------------------ Subtract
-4y = -4
y = 1
-----------------
z = 0
-------------------
x = 1
<span>By the Pythagorean theorem
AB = </span>√(12²+5²) = √169 = 13 units
Answer:
4.5 is the answer 9/2=4.5
Step-by-step explanation:
First is yes
Second is no
Third is no
Fourth is no