anthonylopez1
04.06.2020 •
Mathematics
This assignment is called percent change . only 5 questions when you find the answer , round the answer to the nearest tenth . thanks
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Ответ:
9514 1404 393
(c) 2440
Step-by-step explanation:
The sum of the squares of numbers 1 .. n is ...
s(n) = n(n +1)(2n +1)/6
You want the sum of squares from 5 to 19. We can compute that from ...
s(19) -s(4) = (19(20)(39) -4(5)(9))/6 = (14820 -180)/6 = 2440