Answer:
The third and the forth
Step-by-step explanation:
Functions do not have repetition in the x column.
Since the other options have doubles of an x value
(or, to phrase it differently, two y values for one x value)
they are not functions.
Step-by-step explanation:
4/sin45=

Ok i should know this i had the same test sum goes to 0 5/8 goes to 5/8 and m goes to -5/8
hope this helps!
The answer is 6t^2+2.5x^2-0.5t-5.4