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Gelneren [198K]
3 years ago
7

Plz help me get the right answer to these

Mathematics
2 answers:
-Dominant- [34]3 years ago
8 0

Step-by-step explanation:

(-7b^5+42b^4)\dib7b=\dfrac{-7b^5}{7b}+\dfrac{42b^4}{7b}=-b^4+6b^3

Citrus2011 [14]3 years ago
4 0

- b^{4} + 6b^{3}

divide each term on the numerator by 7b

= - 7b^{5} / 7b + 42b^{4} / 7b

= - b^{4} + 6b^{3}


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sertanlavr [38]

Answer:

The probability that sample mean differ the true greater than 2.1 will be 2.8070 %

Step-by-step explanation:

Given:

Sample mean =46 dollars

standard deviation=8

n=53

To Find :

Probability that sample mean would  differ from true mean by greater than 2.1

Solution;

<em>This sample distribution mean problem,</em>

so for that

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Z=(sample mean - true mean)/(standard deviation/Sqrt(n))

Z=-2.1/(8/Sqrt(53))

Z=-2.1*Sqrt(53)/8

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3 years ago
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elixir [45]
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3 years ago
10. Which of the following is true about the graph of the given inequality?
frez [133]

Answer:

C I think

Step-by-step explanation:

4 0
3 years ago
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Black_prince [1.1K]
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Read 2 more answers
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Answer:

Step-by-step explanation:

Length = L.

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3 0
3 years ago
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