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SCORPION-xisa [38]
3 years ago
10

(x2 + 3x + 1)(x2 + x + 2)

Mathematics
1 answer:
Klio2033 [76]3 years ago
5 0
( x^{2} +3x+1)( x^{2} +x+2) \\ = x^{2} ( x^{2} +x+2)+3x( x^{2} +x+2)+1( x^{2} +x+2) \\ = x^{4}+ x^{3}+2 x^{2} +3 x^{3} +3 x^{2} +6x+ x^{2} +x+2 \\ = x^{4} +4 x^{3} +6 x^{2} +7x+2
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Answer:

A. Based on the procedure by which this figure was generated, it is likely that the population proportion is between 44.5% and 51.5%.

Step-by-step explanation:

Confidence interval:

We build a confidence interval from a sample proportion, to get an estimate of where the population proportion should likely be.

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Following the concept of a confidence interval, the population proportion is likely to be between 44.5% and 51.5%, and thus, the correct answer is given by option A.

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Step-by-step explanation:

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