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PtichkaEL [24]
2 years ago
8

What is the sum of the numbers in the series below? 15 + 11 + 7 + . . . + (–129)

Mathematics
2 answers:
seropon [69]2 years ago
8 0
Your answer if you are in algebra 2 and you have this on online school would be -2,109
stiks02 [169]2 years ago
5 0
15 + 11 + 7 + 3 + (-129)
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This seems like a right triangle problem.

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So, the equation is 4^{2} +x^{2} =14^{2}.

Solve for x:

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Hope this helps!

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