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lilavasa [31]
3 years ago
13

Simplify.

Mathematics
2 answers:
Maurinko [17]3 years ago
7 0

Answer:

..

Step-by-step explanation:

Flura [38]3 years ago
4 0

-5x^4(-3x^2+4x-2)\\\\\text{use distributive property and}\ a^n\cdot a^m=a^{n+m}\\\\=(-5x^4)(-3x^2)+(-5x^4)(4x)+(-5x^4)(-2)\\\\=15x^{4+2}-20x^{4+1}+10x^4\\\\=\boxed{15x^6-20x^5+10x^4}\to\boxed{D)}

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Answer:

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Step-by-step explanation:

Information provided

represent the mean for sample 1  

represent the mean for sample 2  

represent the sample standard deviation for 1  

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sample size for the group 2  

Significance level provided

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Hypothesis to test

We want to verify if the true means for this case are significantly different, the system of hypothesis would be:  

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Alternative hypothesis:  

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(1)  

And the degrees of freedom are given by    

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The degreess of freedom are given by:

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Step-by-step explanation:

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