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Monica [59]
3 years ago
5

What formula can you use to find the nth triangular number

Mathematics
1 answer:
Ray Of Light [21]3 years ago
6 0

Answer:

xn = n·(n + 1)/2

Step-by-step explanation:

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The value of x is 12.7 and the value of y is 9. The correct option is the third option x = 12.7; y = 9

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From the question, we are to determine the values of the missing sides

From the diagram,

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