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valentinak56 [21]
3 years ago
8

WILL GIVE BRAINLIEST THANKS!!!

Mathematics
1 answer:
scoray [572]3 years ago
7 0

Answer: B

Step-by-step explanation:

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Step-by-step explanation:

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\Rightarrow A=\left(k^2+3k\right)\left(k^2+7k\right)\\\\\Rightarrow A=k^2k^2+k^2\cdot \:7k+3kk^2+3k\cdot \:7k\\\\\Rightarrow A=k^4+10k^3+21k^2

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3 years ago
The ratio of men to women working for a company is 7 to 5 . If there are 90 women working for the company, what is the total num
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