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seropon [69]
2 years ago
7

(4x+7)-(x+1) A. 4x+6 B. 4x+8 C. 3x+6 D. 3x+8

Mathematics
1 answer:
zaharov [31]2 years ago
3 0

Answer: 4x + 7 - ( x + 1)

Remove the bracket

We get

4x + 7 - x - 1

= 3x + 6

That's option B

Step-by-step explanation:

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A party store has 54 packs of plates in stock. The packs are either sets of 8 or sets of 12. If the store has 496 total plates i
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Answer:

a 16

Step-by-step explanation:

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304 / 8 = 38 sets of 8 plates

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4 0
3 years ago
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consider the following scenario: Assume daily protein intake values in a population of athletes are known to have a standard dev
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Answer:

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Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

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Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

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In which \sigma is the standard deviation of the population and n is the size of the sample.

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The lower end of the interval is the sample mean subtracted by M. So it is 77 - 7.03 = 69.97g.

The upper end of the interval is the sample mean added to M. So it is 77 + 7.03 = 84.03g.

The 95% confidence interval for the population mean daily protein intake is between 69.97g and 84.03g.

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3 years ago
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Answer:

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