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almond37 [142]
3 years ago
5

The average weight of a 7-year old girl is 49 pounds. The average weight of an 11 year old girl is 77 pounds.

Mathematics
1 answer:
Aneli [31]3 years ago
8 0
I only know D. but I'll try to figure out the rest too. D. 9 years old

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3 possible solutions to the equation 2x+y=10 are shown below:

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Hope this helps! :)
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3 years ago
What is the value of b if (3 + i) and (3 - i) are complex roots of 2x² + bx + 20 = 0?
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