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Mice21 [21]
3 years ago
7

Evaluate r=5

Mathematics
1 answer:
Salsk061 [2.6K]3 years ago
4 0

Answer:

\sum (r+1)^2 = 90

Step-by-step explanation:

Given

\sum (r+1)^2; r = 1,2....5

Required

Evaluate

\sum (r+1)^2; r = 1,2....5 is equivalent to :

(1 + 1)^2 +(2 + 1)^2 +(3 + 1)^2 +(4 + 1)^2 +(5 + 1)^2

(2)^2 +(3)^2 +(4)^2 +(5)^2 +(6)^2

4 + 9 + 16 + 25 + 36

90

Hence:

\sum (r+1)^2 = 90

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Answer:

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Step-by-step explanation:

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4 0
2 years ago
10pts dont answer bogus or reported
ELEN [110]

Answer:

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Step-by-step explanation:

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6.75=6 hours and 45 min

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Step-by-step explanation:

^^^

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