-x+y-3z+4w=6^"dfv
+xd-y+23z=0
so x=1 and y=3
Answer:
15°
Step-by-step explanation:
<em>L</em><em> </em>MLP = 180-165=15°
_____
Answer:

Step-by-step explanation:
If the quadratic equation has a root at
then when
, 



If the quadratic equation has a root at
then when
, 



Therefore, 

Answer:
7
Step-by-step explanation:
Answer:
where is the question like background info
Step-by-step explanation: