Answer: 1
Step-by-step explanation:
-11, -7, -3...
you add 4 each time so the next number would be 1
If 455 changes to a higher number the mean which is the average should increase to a higher number
When you set

, you end up with the differentials

. Multiplying both sides by 2 gives

.
Then the integral is
2/5
0.4/1*10/10=4/10
4/10%2/2=2/5
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