
Explanation:
Given: 

Note that



Substituting the above equation into the expression for f'(x), we can then write f'(x) as



Therefore,

Answer:
x^3 - 2x + 4
Step-by-step explanation:
4x^2 - 2x + 6x - 10 + desiredsidelength = x^3 + 4x^2 + 2x - 6.
desiredsidelength = x^3 - 2x + 4
I believe it had lasted for 3 hours and 8 minutes :)
Answer:
The mean for the combined sample = 6.
Step-by-step explanation:
We have been given that one sample of n = 10 scores has a mean of M = 8.
So the sum of 10 scores for 1st sample will be: 
We are also told that second sample of n = 5 scores has a mean of M = 2.
So the sum of 5 scores for 2nd sample will be: 
When the both samples are combined, so total points will be:
and total scores will be
.



Therefore, the mean for the combined sample will be 6.