The second partial derivatives of 
exist everywhere in its domain. By Schwarz's theorem, the mixed second-order partials derivatives are equal:
Then
We don't actually need to compute 
and 
to know that they are both free of 
. So when we differentiate for a second time with respect to , the whole thing cancels out.
3x^2-7x+15x-35
=3x^2+8x-35
Answer:2,3,4
Step-by-step explanation:
Answer:
sorry
Step-by-step explanation:
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Answer: b and d
- the average of the difference of scores would be about 19 points if you were to take many many samples of first year and senior pairs.
- for a pair of randomly selected first year and senior students the difference of their scores typically varies from the mean of 19 points by about 45 points.
Step-by-step explanation: got it right on edge :)
