I think that it’s observational study because she is observing them. If not experiment.
Answer:
That's it nothing else?
Step-by-step explanation:
Answer: x=4 y=14 z=4
Step-by-step explanation:
On edge it is that
^ means to the power of with nothing after it, it's miss-used. Solving without the ^ symbol it is -2xy with the ^ symbol it's irrational and cannot be solved.
Y(y + 4) - y2 = 6
y2 + 4y - y2 = 6
4y = 6 ⇒ False
