Answer:
Step-by-step explanation:
hello :
note : the vertex form is :
ax²+bx+c = a(x+(b)/(2a))²- delta/4a² and delta = b²- 4ac
in this exercice you have : a =1 b = -1 and c= 3
continu ..........
Answer:

Step-by-step explanation:



Waves transport energy over distances.
Hope I helped! ( Smiles )
Answer:
6/12
Step-by-step explanation:
the last one
4/8=6/12!!